OTTERY ST MARY TO AYLESBEARE AYLESBEARE TO KENN
Transcription
OTTERY ST MARY TO AYLESBEARE AYLESBEARE TO KENN
SOUTH-WEST REINFORCEMENT PROJECT OTTERY ST MARY TO AYLESBEARE AYLESBEARE TO KENN FISHACRE TO CHOAKFORD GAS PIPELINES DEVON POST-EXCAVATION ASSESSMENT AND UPDATED PROJECT DESIGN ISSUE 2 Volume 1: Text For LAING O’ROURKE on behalf of NATIONAL GRID CA PROJECT: 9070 CA REPORT: 09106 FEBRUARY 2010 SOUTH-WEST REINFORCEMENT PROJECT OTTERY ST. MARY TO AYLESBEARE AYLESBEARE TO KENN FISHACRE TO CHOAKFORD GAS PIPELINES DEVON POST-EXCAVATION ASSESSMENT AND UPDATED PROJECT DESIGN VOLUME 1: TEXT CA PROJECT: 9070 CA REPORT: 09106 Author: Stuart Joyce, Andrew Mudd, Mark Collard Approved: Martin Watts Signed: ……………………………………………………………. Issue: 02 Date: February 2010 This report is confidential to the client. Cotswold Archaeology accepts no responsibility or liability to any third party to whom this report, or any part of it, is made known. Any such party relies upon this report entirely at their own risk. No part of this report may be reproduced by any means without permission. © Cotswold Archaeology Building 11, Kemble Enterprise Park, Kemble, Cirencester, Gloucestershire, GL7 6BQ Tel. 01285 771022 Fax. 01285 771033 E-mail: info@cotswoldarch.org.uk SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology VOLUME 1 CONTENTS SUMMARY........................................................................................................................ 11 1. INTRODUCTION ................................................................................................. 13 Location and topography ..................................................................................... 13 Archaeological background.................................................................................. 14 2. OBJECTIVES AND METHODS ........................................................................... 16 Archive ................................................................................................................. 17 3. SUMMARY OF FIELDWORK PROGRAMME ..................................................... 18 Ottery St Mary to Aylesbeare............................................................................... 18 Aylesbeare to Kenn.............................................................................................. 18 Fishacre to Choakford.......................................................................................... 19 4. DATING AND PHASING...................................................................................... 20 5. SUMMARY EXCAVATION RESULTS ................................................................. 21 Site OTA 1.03 ..................................................................................................... 21 Site OTA 2.03 ...................................................................................................... 21 Sites OTA 2.06, 3.01 ........................................................................................... 21 Site OTA 3.04 ...................................................................................................... 22 Site OTA 3.07 ...................................................................................................... 24 Site OTA 4.01 ...................................................................................................... 24 Site OTA 4.05 ...................................................................................................... 25 Site OTA 4.06 ...................................................................................................... 25 Site OTA 4.07 ...................................................................................................... 26 Site OTA 4.08 ...................................................................................................... 26 Site OTA 4.09 ...................................................................................................... 26 Site OTA 4.10 ...................................................................................................... 27 Site OTA 4.12 ...................................................................................................... 28 Site OTA 5.01 ...................................................................................................... 28 2 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site OTA 5.02 ...................................................................................................... 29 Site OTA 7A.04 .................................................................................................... 29 Site OTA 7A.06 .................................................................................................... 29 Site OTA 8A.01 .................................................................................................... 30 Site OTA 8A.06 .................................................................................................... 30 Site OTA 9.01 ...................................................................................................... 30 Site OTA 9.02 ...................................................................................................... 31 Site ATK 0.02....................................................................................................... 31 Site ATK 0.03....................................................................................................... 31 Site ATK 0.04....................................................................................................... 32 Site ATK 4.04....................................................................................................... 32 Site ATK 4a.01..................................................................................................... 32 Site ATK 6.06....................................................................................................... 33 Site ATK 7.01....................................................................................................... 33 Site ATK 9.01....................................................................................................... 33 Site ATK 11.04..................................................................................................... 34 Site ATK 12.01..................................................................................................... 34 Site ATK 12.10..................................................................................................... 36 Site ATK 12.12..................................................................................................... 36 Site ATK 12.13..................................................................................................... 36 Site ATK 13.01..................................................................................................... 37 Site ATK 13.02..................................................................................................... 37 Site ATK 14.01..................................................................................................... 42 Site ATK 14.02..................................................................................................... 42 Site ATK 14.03..................................................................................................... 42 Site ATK 14.08..................................................................................................... 43 Site ATK 14.09..................................................................................................... 43 Site ATK 15.02..................................................................................................... 44 Site ATK 15.03..................................................................................................... 44 Site FTC 1.01....................................................................................................... 45 Site FTC 2.02....................................................................................................... 45 Site FTC 4.01....................................................................................................... 46 Site FTC 7.01....................................................................................................... 46 Site FTC 8.01....................................................................................................... 47 Site FTC 8.02, 8.03.............................................................................................. 48 Site FTC 10.01 .................................................................................................... 48 Site FTC 12.05..................................................................................................... 49 3 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site FTC 12.05w ................................................................................................. 49 Site FTC 13.03 .................................................................................................... 50 Site FTC 14.01..................................................................................................... 51 Site FTC 15.01..................................................................................................... 52 Site FTC 15.02..................................................................................................... 52 Site FTC 16.01 .................................................................................................... 53 Site FTC 16.07..................................................................................................... 53 Site FTC 16.08..................................................................................................... 54 Site FTC 18.12/18.13........................................................................................... 55 Site FTC 18.14..................................................................................................... 56 Site FTC 19.05..................................................................................................... 56 Site FTC 19.07..................................................................................................... 56 Site FTC 19.08..................................................................................................... 57 Site FTC 20.02..................................................................................................... 57 Site FTC 21.02 .................................................................................................... 57 Site FTC 21.06 .................................................................................................... 58 Site FTC 24.02/24.03/24.04................................................................................. 58 Site FTC 24.05..................................................................................................... 60 Site FTC 26.01 .................................................................................................... 61 Site FTC 28.01..................................................................................................... 61 Site FTC 30.02..................................................................................................... 61 Site FTC 30.03..................................................................................................... 62 Site FTC 31.01..................................................................................................... 62 Site FTC 31.02..................................................................................................... 62 Site FTC 31.05..................................................................................................... 63 Site FTC 31.06/31.07/31.08................................................................................. 63 Site FTC 33.01..................................................................................................... 63 Site FTC 33.02..................................................................................................... 64 Site FTC 33.03..................................................................................................... 65 Site FTC 33.04..................................................................................................... 65 Site FTC 33.05/33.06/33.07................................................................................. 65 Site FTC 34.02..................................................................................................... 65 Site FTC 34.08..................................................................................................... 66 Site FTC 35.01..................................................................................................... 66 Site FTC 37.04..................................................................................................... 66 Site FTC 37.06..................................................................................................... 67 Site FTC 38.02..................................................................................................... 67 4 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site FTC 39.03..................................................................................................... 67 Site FTC 40.01..................................................................................................... 67 6. STRATIGRAPHIC, ARTEFACTUAL AND BIOLOGICAL RECORDS.................. 69 Stratigraphic Record: factual data........................................................................ 69 Artefactual record: factual data ............................................................................ 70 Worked and utilised stone.................................................................................... 73 Biological record: factual data.............................................................................. 74 7. SUMMARY STATEMENTS OF POTENTIAL ...................................................... 79 Stratigraphic record.............................................................................................. 79 Artefactual Record ............................................................................................... 81 Worked and Utilised stone ................................................................................... 84 Biological Record ................................................................................................. 85 8. UPDATED OBJECTIVES .................................................................................... 89 Original fieldwork objectives ................................................................................ 89 Revised objectives ............................................................................................... 90 Earlier prehistoric features ................................................................................... 91 Iron Age and Roman sites ................................................................................... 94 Post-conquest medieval and later settlement and agriculture ............................. 96 Regional research aims ....................................................................................... 98 9. PUBLICATION ..................................................................................................... 100 10. PROJECT TEAM ................................................................................................. 103 11. TASK LIST ........................................................................................................... 105 12. TIMETABLE ......................................................................................................... 107 13. BUDGET .............................................................................................................. 108 REFERENCES ................................................................................................................. 109 5 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 1: THE WORKED FLINT AND CHERT ......................................................... 117 APPENDIX 2: PREHISTORIC POTTERY ........................................................................ 127 APPENDIX 3: ROMAN POTTERY ................................................................................... 135 APPENDIX 4: THE MEDIEVAL AND LATER POTTERY ................................................. 141 APPENDIX 5: FIRED CLAY AND CERAMIC BUILDING MATERIAL............................... 149 APPENDIX 6: CLAY TOBACCO PIPE ............................................................................. 152 APPENDIX 7: THE COINS ............................................................................................... 154 APPENDIX 8: OBJECTS OF METAL ............................................................................... 155 APPENDIX 9: GLASS....................................................................................................... 160 APPENDIX 10: METALWORKING RESIDUES ................................................................ 163 APPENDIX 11: WORKED AND UTILISED STONE ......................................................... 178 APPENDIX 12: CREMATED HUMAN REMAINS ............................................................. 183 APPENDIX 13: ANIMAL BONE ........................................................................................ 187 APPENDIX 14: CHARCOAL............................................................................................. 192 APPENDIX 15: THE CHARRED PLANT REMAINS ......................................................... 203 APPENDIX 16: MOLLUSCA ............................................................................................ 229 6 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 17: GEOARCHAEOLOGICAL AND PALYNOLOGICAL ASSESSMENT OF MONOLITH SAMPLES ..................................................................................................... 231 APPENDIX 18: RADIOCARBON DATING ....................................................................... 241 LIST OF ILLUSTRATIONS (Volume 2) Fig. 1 Project Location Plan Fig. 2 Location of Ottery St. Mary to Aylesbeare gas pipeline (1:50,000) Fig. 3 Location of Aylesbeare to Kenn gas pipeline (1:50,000) Fig. 4 Location of Fishacre to Choakford gas pipeline (1:50,000) Fig. 5 Ottery St Mary to Aylesbeare pipeline Inset 1 Plots 1.03 – 4.10 (1:15,000) Fig. 6 Ottery St Mary to Aylesbeare pipeline Inset 2 Plots 4.09 – 9.01 (1:15,000) Fig. 7 Aylesbeare to Kenn pipeline Inset 1 Plots 0.02 – 7.01 (1:15,000) Fig. 8 Aylesbeare to Kenn pipeline Inset 2 Plots 9.01 – 12.10 (1:15,000) Fig. 9 Aylesbeare to Kenn pipeline Inset 3 Plots 12.12 – 15.03 (1:15,000) Fig. 10 Fishacre to Choakford pipeline Inset 1 Plots 1.01 – 8.03 (1:15,000) Fig. 11 Fishacre to Choakford pipeline Inset 2 Plots 10.01 – 16.08 (1:15,000) Fig. 12 Fishacre to Choakford pipeline Inset 3 Plots 16.08 – 21.02 (1:15,000) Fig. 13 Fishacre to Choakford pipeline Inset 4 Plots 21.06 – 26.01 (1:15,000) Fig. 14 Fishacre to Choakford pipeline Inset 5 Plots 28.01 – 34.08 (1:15,000) Fig. 15 Fishacre to Choakford pipeline Inset 6 Plots 35.01 – 40.01 (1:15,000) Fig. 16 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 1.03 & 2.03 (1:50) Fig. 17 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 2.06 and evaluation trenches 210 & 209 (1:250) Fig. 18 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 2.06 & 3.01 and evaluation trenches 208 & 207 (1:250) Fig. 19 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 3.04 & 3.07 (1:200) Fig. 20 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plot 4.01 and evaluation trenches 204 & 205 (1:250) Fig. 21 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 4.05 & 4.06 (1:250) 7 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Fig. 22 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 4.07, 4.08 & 4.09 (1:250) Fig. 23 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 4.09, 4.10 & 4.12 (1:500/1:50) Fig. 24 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plot 5.01 (1:250) Fig. 25 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 5.01 & 5.02 (1:250) Fig. 26 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 7a.04 & 7a.06 (1:250) Fig. 27 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 8a.01 & 8a.06 (1:200) Fig. 28 Ottery St Mary to Aylesbeare Pipeline; Archaeological features in Plots 9.01 & 9.02 (1:2000) Fig. 29 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 0.02 & 0.03 (1:100) Fig. 30 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 0.04, evaluation trenches 308, 307 & 306 & 0.03 (1:100) Fig. 31 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 4.04 & 4a.01 (1:500) Fig. 32 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 6.06, 7.01 & 9.01 (1:100) Fig. 33 Aylesbeare to Kenn Pipeline; Archaeological features in Plot 11.04 (1:200/1:50) Fig. 34 Aylesbeare to Kenn Pipeline; Archaeological features in Plot 12.01 (Building 12.01.01) (1:100) Fig. 35 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 12.10 & 12.12 (1:250) Fig. 36 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 12.12 & 12.13 (1:250) Fig. 37 Aylesbeare to Kenn Pipeline; Archaeological features in Plot 13.01 (1:250) Fig. 38 Aylesbeare to Kenn Pipeline; Archaeological features in Plot 13.02 (1:250) Fig. 39 Aylesbeare to Kenn Pipeline; Archaeological features in Plot 13.02 (1:250) Fig. 40 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 14.01 & 14.02 (1:250) Fig. 41 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 14.03 & 14.08 (1:250) Fig. 42 Aylesbeare to Kenn Pipeline; Archaeological features in Plot 14.09 (1:250) Fig. 43 Aylesbeare to Kenn Pipeline; Archaeological features in Plots 15.02 &15.03 (1:250) Fig. 44 Fishacre to Choakford Pipeline; Archaeological features in Plot 1.01 (1:500) Fig. 45 Fishacre to Choakford Pipeline; Archaeological features in Plots 2.02 & 4.01 (1:25/1:500) Fig. 46 Fishacre to Choakford Pipeline; Archaeological features in Plot 7.01 (1:250) Fig. 47 Fishacre to Choakford Pipeline; Archaeological features in Plots 8.01 & 8.02 (1:250) Fig. 48 Fishacre to Choakford Pipeline; Magnetometer survey in Plot 10:01 (1:1000) 8 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Fig. 49 Fishacre to Choakford Pipeline; Archaeological features in Plot 10.01 (1:250) Fig. 50 Fishacre to Choakford Pipeline; Archaeological features in Plots 12.05 & 12.05w (1:200) Fig. 51 Fishacre to Choakford Pipeline; Archaeological features in Plot 13.03 and evaluation trenches 9 & 10 (1:250) Fig. 52 Fishacre to Choakford Pipeline; Magnetometer Survey in Plot 14.01 (1:1000) Fig. 53 Fishacre to Choakford Pipeline; Archaeological features in Plot 14.01 (1:250) Fig. 54 Fishacre to Choakford Pipeline; Archaeological features in Plots 15.01, 15.02 and 16.01 (1:250) Fig. 55 Fishacre to Choakford Pipeline; Archaeological features in Plot 16.07 (1:250) Fig. 56 Fishacre to Choakford Pipeline; Archaeological features in Plot 16.08 (1:250) Fig. 57 Fishacre to Choakford Pipeline; Archaeological features in Plot 16.08 (1:250) Fig. 58 Fishacre to Choakford Pipeline; Archaeological features in Plots 18.12, 18.13 & 18.14 (1:250) Fig. 59 Fishacre to Choakford Pipeline; Archaeological features in Plots 19.05, 19.07 and 19.08 (1:250) Fig. 60 Fishacre to Choakford Pipeline; Archaeological features in Plots 20.02 and 21.02 (1:250) Fig. 61 Fishacre to Choakford Pipeline; Archaeological features in Plot 21.06 (1:250) Fig. 62 Fishacre to Choakford Pipeline; Archaeological features in Plot 24.02 (1:500) Fig. 63 Fishacre to Choakford Pipeline; Archaeological features in Plots 24.03, 24.04 and 24.05 (1:500) Fig. 64 Fishacre to Choakford Pipeline; Archaeological features in Plots 26.01 & 28.01 (1:250) Fig. 65 Fishacre to Choakford Pipeline; Archaeological features in Plots 30.02, 30.03 & 31.01 (1:250) Fig. 66 Fishacre to Choakford Pipeline; Archaeological features in Plots 31.02 & 31.05 (1:250) Fig. 67 Fishacre to Choakford Pipeline; Archaeological features in Plots 31.06, 31.07 & 31.08 (1:200) Fig. 68 Fishacre to Choakford Pipeline; Archaeological features in Plots 33.01 & 33.02 (1:200) Fig. 69 Fishacre to Choakford Pipeline; Archaeological features in Plots 33.04, 33.05 & 33.06 (1:250) Fig. 70 Fishacre to Choakford Pipeline; Archaeological features in Plots 33.07, 34.02 & 34.08 (1:250) 9 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Fig. 71 Fishacre to Choakford Pipeline; Archaeological features in Plots 35.01, 37.04 & 37.06 (1:500) Fig. 72 Fishacre to Choakford Pipeline; Archaeological features in Plots 38.02 & 38.03 (1:250) Fig. 73 Fishacre to Choakford Pipeline; Archaeological features in Plot 40.01 (1:500) SITE GAZETTEER (Volume 3) 10 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology SUMMARY Site Name: Ottery St. Mary to Aylesbeare Gas Pipeline Aylesbeare to Kenn Gas Pipeline Fishacre to Choakford Gas Pipeline Location: Ottery St. Mary to Aylesbeare, Devon Aylesbeare to Kenn, Devon Fishacre to Choakford, Devon NGR: Ottery St. Mary to Aylesbeare SY 1198 9573 to SY 0456 9081 Aylesbeare to Kenn SY 0455 9083 to SX 9237 8643 Fishacre to Choakford SX 8176 6454 to SX 5892 5460 Type: Programme of Archaeological Investigation Date: Fieldwork: 18 September 2006 to 11 October 2007 Location of archive: Currently held by Cotswold Archaeology; Ottery St. Mary to Aylesbeare and the Aylesbeare to Kenn archive to be deposited with Royal Albert Memorial Museum in Exeter; Fishacre to Choakford archive to be deposited with Plymouth City Museum and Art Gallery Accession Numbers: Ottery St. Mary to Aylesbeare: RAMM 518/2006 Aylesbeare to Kenn: RAMM 172/2008 Fishacre to Choakford: AR 2007.2 Site Code: Ottery St. Mary to Aylesbeare OTA 06 Aylesbeare to Kenn ATK 06 Fishacre to Choakford FTC 06 A programme of archaeological investigation was undertaken by Cotswold Archaeology from April 2005 to October 2007 at the request of Laing O’Rourke on behalf of National Grid along three sections of gas pipeline running from Ottery St Mary to Aylesbeare, from Aylesbeare to Kenn and from Fishacre to Choakford, Devon which, together with the Ilchester to Barrington gas pipeline in Somerset, form the South-West Reinforcement Project. The total length of the three pipeline sections in Devon amounted to c 56km, and archaeological remains in eighty-eight sites were examined by excavation. Of greatest archaeological significance were: eleven earlier prehistoric sites (dating from the Early Neolithic to the Middle Bronze Age), mainly comprising groups of pits and several ditches; ten Iron Age and Roman sites, including parts of settlements and enclosures (five), iron smelting furnaces (one) and a number of more disparate features; part of a medieval settlement; and a post-medieval cob 11 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology building. Most of the remaining sites are undated and generally comprise small groups or individual pits and ditches. The material remains were for the most part sparse, although they included significant assemblages of Neolithic and Bronze Age pottery (Grooved Ware, Beaker and Trevisker Ware), and moderate, if not prolific Roman, medieval and postmedieval pottery. Worked flint and chert was widespread, although not dense and there were occasional stone, metal and glass artefacts. The ironworking residues from prehistoric furnaces are of particular interest. Charred plant remains and charcoal were sampled from a number of deposits of all the periods represented, and may have the further potential to provide radiocarbon dating where needed. This document presents a quantification and assessment of the evidence recovered from the excavation. It considers the evidence both by category and collectively in its local and regional context, and presents an Updated Project Design for a programme of postexcavation analysis to bring the results to appropriate publication. 12 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 1. INTRODUCTION 1.1 Between April 2005 and October 2007 Cotswold Archaeology (CA), at the request of Laing O’Rourke on behalf of National Grid, undertook a series of archaeological works, including desk-based assessments, field reconnaissance surveys, evaluation trenching and excavations, along three lengths of pipeline forming part of the National Grid South-West Reinforcement Project in Devon (Fig. 1). These pipelines ran between Ottery St Mary and Aylesbeare (10km), Ayesbeare and Kenn (16km), and Fishacre and Choakford (30 km). All works were carried out in compliance with a condition of consent for the scheme granted by the Department of Trade and Industry requiring the implementation of a programme of archaeological works to the satisfaction of the Devon County Council Archaeology Service. Location and topography 1.2 The Ottery St Mary to Aylesbeare pipeline began approximately 1km east of Ottery St Mary (SY 1210 9581), from where it ran south-west, crossing the River Otter 500m to the south of the town (Fig. 2). It continued in a south-westerly direction, before turning to run west, then north-west, to pass between West Hill and Higher Metcombe. Thereafter the route ran south-west terminating c. 500m south-east of the village of Aylesbeare (SY 0458 9069). 1.3 The Aylesbeare to Kenn pipeline commenced approximately 500m south of Aylesbeare (SY 0455 9086) and, after running west for just over 1km, ran in a generally south-western direction until the Exe estuary, 1km north of Lympstone (Fig. 3). The route crossed the Exe at Powderham Sand, recommencing on the western side of the estuary just north of the village of Powderham. From there the route ran north of the Powderham plantations, turned and ran west for two kilometres, terminating approximately 1km north of Kenn (SX 9232 8645). 1.4 The Fishacre to Choakford pipeline began at Fishacre AGI (SX 2817 0645) and ran westward to the north of Staverton (Fig. 4). It then turned to run south passing west of Hood Barton and east of Westcombe and Lower and Higher Allerton. The route then turned on a south-westerly alignment and ran to the River Avon, south of Avon Wick village. The south-westerly alignment continued, running to the north of Ugborough and south of Ivybridge. The westerly alignment continued to its termination at Choakford AGI (SX 2589 0546). 13 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 1.5 © Cotswold Archaeology The topography of these routes is characterised by the gently rolling countryside of East Devon and the South Hams regions. In East Devon this is mainly formed on an underlying geology of Triassic mudstones, sandstones and occasional pebble beds, with alluvial silts and gravels in the valley of the River Otter. West of the River Exe the geology is mainly Dawlish Sand of the Permian era. From Fishacre to Choakford the underlying geology largely comprises Mid Devonian slates and shales. Land use was overwhelmingly agricultural throughout with a mixture of arable and pastoral uses. . Archaeological background 1.6 In April 2005 CA was commissioned by Laing O’Rourke, on behalf of National Grid, to undertake Archaeology and Heritage Surveys of all three lengths of pipeline. The Archaeology and Heritage Surveys formed part of the Archaeology and Cultural Heritage chapters of the Environmental Statements, produced to meet the requirements of The Public Gas Transporter Pipeline Works (Environmental Impact Assessment) Regulations 1999. The surveys comprised Desk-Based Assessments (DBAs) and Archaeological Field Reconnaissance Surveys (AFRSs), the results of which were presented in three reports each of three volumes (CA 2005a, 2005b, 2006a). 1.7 In addition, during earlier consideration of the Fishacre-Choakford section of pipeline, CA carried out preliminary field surveys, including fieldwalking on arable land (CA 2001) and two areas of trial geophysical survey (Stratascan 2001), the results of which are incorporated in this Assessment. 1.8 The Archaeology and Heritage Surveys identified a number of locations with known or suspected archaeological remains and estimated that there were about 45 sites with the potential to suffer impacts (eleven regarded as being at high risk and 34 at moderate risk). In addition, the ES recognised that, because of the lack of systematic archaeological prospection, there was the potential for as yet unrecorded sites to lie along the lengths of the pipelines. Consequently, a staged approach to further archaeological investigation was undertaken to determine the impact of construction of the pipelines on archaeological sites and to devise appropriate mitigation for any archaeological remains found. These investigations comprised archaeological 14 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology geophysical surveys, earthwork surveys and trial trenching ahead of construction. The geophysical surveys were targeted on cropmarks and other areas of archaeological potential identified in the Archaeology and Heritage Surveys (Archaeological Surveys 2006a, 2006b, 2006c, 2007). Subsequent trial trenching investigated anomalies of archaeological potential found in the geophysical surveys (CA 2006b, 2006c, 2007a). 1.9 Consent to construct the pipeline was granted in April 2006 by the Secretary of State for Trade and Industry subject to the implementation of a programme of archaeological work to be agreed in advance with the Devon County Council Archaeology Service (DCCAS). 1.10 As a result of the staged assessment of the archaeological potential of the route, a number of sites were identified as requiring archaeological excavation ahead of construction as a mitigation of impact. These were carried out in accordance with Written Schemes of Investigation approved by DCCAS (CA 2006f, CA 2007c). Elsewhere topsoil removal as part of construction works was monitored by the attending archaeologist as a watching brief governed by approved WSIs which also covered cases where deeper soil removal was required to reach archaeological levels (CA 2006d, 2006e, 2007b). The mitigation excavations were undertaken on nine defined areas, while the scheme-wide watching briefs resulted in the discovery and recording of a large number of other sites/features. In both instances, archaeological excavation and recording was carried out to similar sampling levels and standards. A summary of mitigation measures is presented in the fieldwork summaries for each pipeline (Section 5, below). 1.11 The archaeological results from all three sections of pipeline have been drawn together for this report. All the sites are identified by the pipeline section code; OTA (Ottery St Mary to Aylesbeare), ATK (Aylesbeare to Kenn) and FTC (Fishacre to Choakford). Within these sections each parcel of land was identified by a unique code (Plot no.) allocated by Laing O’Rourke which has been retained as the site designation. The potentially archaeologically significant features identified in all stages of work are presented in Volume 1 of this report. Site mapping is presented in Volume 2 and a summary gazetteer of all findings is presented in Volume 3. 15 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 2. 2.1 © Cotswold Archaeology OBJECTIVES AND METHODS The WSIs for the excavations and watching briefs contained a series of objectives, the fundamental one of which was to identify, investigate and record all archaeological remains present. The further archaeological research objectives are itemised and discussed in Section 8 of this Assessment. 2.2 The examination of the features concentrated on recovering the plan and structural sequences, as well as consideration of the archaeological potential of the remains in relation to research objectives. As a baseline sampling strategy, all discrete features (post holes, pits) were sampled by hand excavation (normally 50% by volume) unless of common/repetitious nature when the sampling level was to be lowered. Linear features (ditches etc) were sectioned at least once, with each section typically being one metre in length. Bulk horizontal deposits were 10% excavated by hand (as a minimum) with provision for further excavation by machine. Priority was to be attached to features yielding sealed assemblages which could be related to the chronological sequence of the site. 2.3 The evaluations had the limited objectives of providing data on the date, character, quality and extent of archaeological deposits in order to inform subsequent mitigation, decisions about which were made in consultation with DCCAS and National Grid’s Archaeological Adviser. 2.4 Features were recorded in accordance with Technical Manual 1 Fieldwork Recording Manual (CA 2005). Each context was recorded on a pro-forma context sheet; principal deposits were recorded by drawn plans (scale 1:20 or 1:50 as appropriate) and sections (scale 1:10 or 1:20 as appropriate). Photographs (monochrome print; colour transparencies; digital) were taken as appropriate. Artefacts were recovered and retained for processing and analysis in accordance with Technical Manual 3 Treatment of Finds Immediately after Excavation (CA 1995). Deposits were assessed for their palaeo-environmental potential and sampled in accordance with CA Technical Manual 2: The taking of samples for palaeo-environmental and palaeo-economic analysis from archaeological sites (CA 2003). 16 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Archive 2.5 The archive and artefacts from all phases of work are currently held be CA at their offices in Kemble. The archive and, subject to the agreement of the legal landowners the artefacts, will be deposited with the Royal Albert Memorial Museum, Exeter and the Plymouth City Museum and Art Gallery under the following accession numbers: OTA06 – RAMM 518/2006; ATK06 – RAMM 172/2008; FTC06 – AR 2007.2. 17 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 3. SUMMARY OF FIELDWORK PROGRAMME Ottery St Mary to Aylesbeare 3.1 A total of 57 plots (defined by existing field boundaries) were subject to archaeological investigation; of these six were evaluated by trenching (table below), Three of these, plots; 3.04, 4.01 and 5.01, were then subject to further excavation. Plots targeted with Evaluation Trenches and Area Excavation Plot No. Evaluation Trench Nos. Further Excavation 1.02 211 No 2.06 208, 209 and 210 No 3.01 207 No 3.04 206 Yes 4.01 204 and 205 Yes 5.01 201, 202 and 203 Yes All plots were monitored in the Watching Brief. As a result of the combined phases of fieldwork (evaluation, pre-emptive excavation and watching brief), features within 21 individual sites were the subject of archaeological excavation. These were located in plots 1.03, 2.03, 2.06, 3.04, 3.07, 4.01, 4.05, 4.06, 4.07, 4.08, 4.09, 4.10, 4.12, 5.01, 5.02, 7a.04, 7a.06, 8a.01, 8a.06, 9.01, 9.02 (Figs.2, 5, 6, 16-28). The results below (Section 5) include those from four evaluation trenches where archaeological deposits or features were identified but which were not subject to more extensive excavation. Aylesbeare to Kenn A total of 84 plots (defined by existing field boundaries) were subject to archaeological investigation; of these ten were evaluated by trenching (table below). Two of these, plots; 12.01 and 13.02 were then subject to further excavation. Plots targeted with Evaluation Trenches and Area Excavation Plot No. Evaluation Trench Nos. Further Excavation 0.04 306, 307 and 308 No 4A.02 309, 310 and311 No 5.02 312 No 7.01 313 and 314 No 10.03 304 and 305 No 12.01 301, 302, 303, 315*, 325*, 326*,327* Yes 12.10 316 and 328* No 18 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 12.12 317, 318 and 319 No 12.13 320, 321 and 322 No 13.02 323 and 324 Yes *Hand dug trenches All plots were monitored in the Watching Brief. As a result of all phases of fieldwork, features within 20 individual sites were the subject of archaeological excavation. These were located in plots 0.02, 0.03, 4.04, 04a.01, 6.06, 7.01, 9.01, 11.04, 12.01, 12.10, 12.12, 12.13, 13.03, 14.01, 14.02, 14.03, 14.08, 14.09, 15.02 and 15.03 (Figs.1, 3, 7-9, 29-43). Fishacre to Choakford A total of 180 plots (defined by existing field boundaries) were subject to archaeological investigation, of these eight had evaluation trenches excavated within them (table below). Three of these, plots; 13.03, 14.01 and 24.02 were then subject to further excavation. Plot 24.03 went straight to excavation because of its proximity to a known archaeological site (Bowl Barrow SAM No. 33756). Plots targeted with Evaluation Trenches and Area Excavation Plot No. Evaluation Trench Nos. Area Excavation 10.01 112, 113, 114 and 115 No 12.05 111 No 13.03 109 and 110 Yes 14.01 106, 107 and 108 Yes 20.01 105 No 20.02 104 No 20.03 102 and 103 No 24.02 101 Yes 24.03 N/A Yes All plots were monitored in the Watching Brief. As a result of all phases of fieldwork, features in 47 individual plots were the subject of archaeological excavation. These were located in plots 1.01, 2.02, 4.01, 7.01, 8.01, 8.02/8.03, 10.01, 12.05, 12.05w, 13.03, 14.01, 15.01, 15.02, 16.01, 16.07, 16.08, 18.12/18.13, 18.14, 19.05, 19.07, 19.08, 20.02, 21.02, 21.06, 24.02/24.03/24.04, 24.05, 26.01, 28.01, 30.02, 30.03, 31.01, 31.02, 31.05, 31.06/07/08, 33.01, 33.02, 33.04, 33.05/06/07, 34.02, 34.08, 35.01, 37.04, 37.06, 38.02, 39.03, 40.01 (Figs.1, 4, 10-15, 44-73). 19 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 4. DATING AND PHASING 4.1 The excavation areas contained a range of archaeological deposits, with contexts falling broadly into eight provisional chronological periods: Period 2: Neolithic (c 4000 – 2400 BC) Period 3: Bronze Age (c 2400 – 700 BC) Period 4: Iron Age (c 700 BC – AD 50) Period 5: Roman (c AD 50 – 450) Period 7: medieval (c 1000 – 1500) Period 8: post-medieval (c 1500 – 1800) Period 9: Modern (c 1800 – present) Period 10: Undated 4.2 Survival of the archaeological deposits varied but generally modern truncation was widespread. Except where it crossed roads or watercourses, the pipeline route traversed an almost exclusively agricultural landscape, which consisted of both pasture and arable land. It is, however, likely that most of the land had been cultivated at one time (despite no clear indications of ridge-and-furrow cultivation) and as a consequence, most archaeological features had been subject to varying degrees of truncation. Unless otherwise noted in this report, archaeological features were observed underlying modern topsoil and subsoil. 4.3 The initial allocation of features to periods is based on preliminary spot-dating, including radiocarbon; a refinement of the provisional phasing may be required following further analysis of the artefacts with further scientific dating as appropriate. 4.4 In addition to the provisionally-dated deposits, certain features contained no artefactual material. However, it is possible to assign many of these to certain periods due to their spatial relationship or similarity to other, dated deposits. Those that remain undated have been assigned to Period 10 (undated). Based on provisional interpretation and spot-dating, the main components of each period are dealt with briefly below (Section 5) in chronological order, by pipeline section, and site by site in plot order from east to west. 20 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5. © Cotswold Archaeology SUMMARY EXCAVATION RESULTS Site OTA 1.03 (NGR SY 1149 9519; Figs 5 & 16) 5.1 The site lies at approximately 113m AOD on a south-facing slope some 0.6km east of the town of Ottery St. Mary. The underlying geology is mapped as Mercia Mudstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of silty clay with frequent angular stones. Period 7 (Medieval) 5.2 At the western end of the site was pit 1.03.004 which measured 1.78m in width and 0.41m in depth. The fill, 1.03.005, contained nine sherds of 12th to 13th-century pottery and significant amounts of charred oat and rye grains (sample 173). Site OTA 2.03 (NGR SY 1091 9485; Figs 5 & 16) 5.3 The site lies at approximately 96m AOD on a west-facing slope some 0.4km south of the town of Ottery St. Mary. The underlying geology is mapped as Mercia Mudstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of silty sand with angular stone inclusions. Period 2 (Neolithic) 5.4 Located at the centre of the site was pit 2.03.004 which was 0.80m in width and 0.34m in depth. The fill, 2.03.005, contained seven sherds of Middle Neolithic pottery of the Peterborough Ware tradition. Sites OTA 2.06, 3.01 (NGR SY 1034 9450; Figs 5, 17 & 18) 5.5 The site lies between 56m AOD and 62m AOD on gently undulating land at the base of a west facing slope some 0.6km south of the town of Ottery St. Mary on either side of Sidmouth Road. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of silty sand with frequent angular stones. 5.6 The geophysical survey of Plot 2.06 showed the corner of a rectangular enclosure with an adjacent ditch to the east, and less distinct linear features further east. Two linear features on different alignments were found in Plot 3.01 (Archaeological Surveys 2006, figs 16-18, areas 2c-3b). These features were targeted with a series of four evaluation trenches (Trenches 207-210). 21 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Trench 207 (Plot 3.01) Period 8 (Post-medieval) 5.7 In the western part of the trench was north-east/south-west orientated ditch 207.08 which contained two sherds of 18th to 19th-century pottery. Period 9 (Modern) 5.8 Located at the eastern end of the trench were north-east/south-west orientated parallel ditches 207.04 and 207.06. The fill, 207.07 of ditch 207.06 contained modern material. They probably represent a post-medieval hedgebank field boundary, but may have had earlier origins. Trench 208 (Plot 2.06) Period 10 (Undated) 5.9 Trench 208 targeted on the rectangular enclosure. In the centre of the trench was east/west orientated ditch 208.04. This feature was not fully revealed within the trench due to the presence of live services. Trench 209 (Plot 2.06) Period 10 (Undated) 5.10 Located at the eastern end of the trench were north-east/south-west orientated ditches 209.06 and 209.11 which would appear to represent a hedgebank field boundary. At the western end of the trench was north-east/south-west orientated ditch 209.04 corresponding to the linear feature adjacent to the rectangular enclosure. Trench 210 (Plot 2.06) Period 10 (Undated) 5.11 Trench 210 intercepted two linear features. In the northern part of the trench were east/west orientated ditches 210.04 and 210.07. These correspond to faint linear anomalies on the geophysical survey plot. Site OTA 3.04 (NGR SY 0969 9437; Figs 5 & 19) 5.12 The site lies at approximately 42m AOD, situated within the flat, low-lying floodplain of the River Otter, which runs approximately 0.2km to the west, at the base of a south facing slope. The field, named ‘Pixies’ Parlour’, lies some 0.5km south of the town of Ottery St. Mary. The underlying geology is mapped as alluvium of the quaternary 22 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology period (BGS 1974). Fieldwork showed that this consisted of silty sand. Geophysical survey indicated a curving ditch in this field (Archaeological Surveys 2006, fig. 20, area 6). Period 2 (Neolithic) 5.13 Located in the east of the site was large pit 3.04.096, which measured 5m in length, 2m in width and 0.75m in depth. It was examined in evaluation trench 206. The primary fill, 206.015, contained 45 sherds of Early Neolithic pottery in a variety of fabrics and 54 pieces of worked flint of comparable date. The uppermost fill, 3.04.089 contained eight sherds of undiagnostic pottery and five pieces of worked flint. A soil sample (sample 073) contained just a few cereal grains and some fragmentary wood charcoal. Period 3 (Bronze Age) 5.14 In the western part of the site was pit 3.04.026, which measured 0.75m in diameter and 0.17m in depth. The secondary fill, 3.04.028, contained one sherd of grogtempered ?Middle Bronze Age pottery. Period 5 (Roman) 5.15 In the western part of the site was ring-gully 3.04.045, which measured 0.85m in width and 0.39m in depth and formed a circle 8m in diameter with a south-eastern entrance gap. The fill, 2.06.007, contained a sherd of Roman pottery and one piece of worked flint. 5.16 Running from east/west across the length of the site was curving ditch 3.04.004, which measured between 1.75m and 2.25m in width, and had a maximum depth of 1.10m. The secondary fill, 3.04.014, contained one sherd of Roman pottery and one piece of worked flint. The fourth fill, 3.04.021, contained one sherd of Roman pottery, five pieces of worked flint and one piece of burnt stone. Secondary fill, 3.04.062, contained a single piece of 12th to 14th-century pottery, which is believed to be intrusive. The uppermost fill, 3.04.052, was cut by post-medieval ditch 3.04.044. Period 8 (Post-medieval) 5.17 In the western part of the site was north-west/south-east orientated ditch 3.04.044. The fill, 3.04.081, contained three sherds of 16th to 18th-century pottery. 23 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 10 (Undated) 5.18 Pits 3.04.038, 3.04.054, 3.04.029 and 3.04.022 lay in the eastern end of the site. Pit 3.04.036 (within the enclosure delineated by ditch 3.04.004) contained a worked flint (fill 3.04.037). Pits 3.04.024 and 3.04.031 were located in the western part of the site. Site OTA 3.07 (NGR SY 0934 9419; Figs 5 & 19) 5.19 The site lies south of Salston at approximately 40m AOD within the flat, low-lying floodplain of the River Otter, which runs approximately 60m to the east some 0.7km south-west of Ottery St. Mary. The underlying geology is mapped as alluvium of the Quaternary period (BGS 1974). Fieldwork showed that this consisted of alluvial silt overlying sandy gravel. Period 8 (Post-medieval) 5.20 At the eastern end of the site were deposits 3.07.003, 3.07.004 and 3.07.005 related to a demolished brick kiln 3.07.009. Deposit 3.07.003 comprised the partial remains of the kiln cut into the alluvium. Bricks associated with the brick kiln appear to be hand-moulded and are un-frogged with a suggested date in the later 18th to mid 19th centuries. Deposit 3.07.005 comprised heat affected natural under the brick kiln, deposit 3.07.004 comprised demolition rubble related to the brick kiln filling a series of linear depressions possibly related to a rack structure used for drying bricks. Brick fragments recovered from the topsoil were under–fired, and possibly represent wasters/rejects from this brick kiln. The site is located 0.5km to the east of a field named Brick Plot (NA 2000a). Site OTA 4.01 (NGR SY 0889 9413; Figs 5 & 20) 5.21 The site lies at approximately 50m AOD on gently undulating land at the base of an east facing slope south of Salston and some 1km south-west of Ottery St. Mary. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of silty sand with frequent rounded or subangular pebbles. Period 8 (Post-medieval) 5.22 Located in the north-east of the site was east/west orientated ditch 4.01.005. The secondary fill, 4.01.025, contained one piece of clay pipe dated to the post-medieval period and one piece of worked flint. The ditch corresponds with a field boundary on the 1845 Tithe map (NA 2000a). 24 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 10 (Undated) 5.23 At the north-western end of Trench 205 was pit 205.004, measuring approximately 0.50m in diameter and 0.22m in depth. An environmental sample recovered from fill 205.005/205.012, (sample 063), identified cremated human bone (Appendix 12). This and sample 064 from the same fills also recovered wood charcoal but no other charred plant remains (Appendices 14 & 15). 5.24 In the northern part of the site was east/west ditch 4.01.006 and in the southern part of the site was north-east/south-west ditch 4.01.004, the fill, 4.01.010, of which was cut by post hole 4.01.007 (n.i.). The ditches appear to correspond with features depicted on the geophysical plot, although the survey does not aid their interpretation. A section of ditch (204.004) was also recorded in Trench 204. 5.25 Scattered across the site were pits 4.01.047, 4.01.045, 4.01.32, 4.01.043 and 4.01.036 (cutting ditch 4.01.006), 4.01.020 and 4.01.011. The fill, 4.01.33, of pit 4.01.032 was cut by post-medieval ditch 4.01.005. Pits 4.01.020 and 4.01.011 were very similar, being 1.3m in diameter with depths of 0.20-0.22m. No dating evidence was recovered from the fills of these pits but they may contemporaneous based on their proximity and similarity. Site OTA 4.05 (NGR SY 0829 9349; Figs 5 & 21) 5.26 The site lies at approximately 69m AOD on an east-facing slope some 2km southwest of Ottery St. Mary. The underlying geology is mapped as valley gravel deposits of the Quaternary period (BGS 1974). Fieldwork showed that this consisted of sand with frequent rounded or sub-angular pebbles. Period 10 (Undated) 5.27 Located at the centre of the site was north/south orientated ditch 4.05.004. It aligns closely with the present field boundaries and may represent a former subdivision of this large field. Site OTA 4.06 (NGR SY 0823 9336; Figs 5 & 21) 5.28 The site lies at approximately 74m AOD on an east-facing slope some 1km east of the village of Broad Oak. The underlying geology is mapped as valley gravel deposits of the Quaternary period (BGS 1974). Fieldwork showed that this consisted of sand with frequent rounded or sub-angular pebbles. 25 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 10 (Undated) 5.29 Located at the centre of the site was north-west/south-east orientated ditch terminus/pit 4.06.004 and north-east/south-west orientated ditch 4.06.006. Site OTA 4.07 (NGR SY 0818 9327; Figs 5 & 22) 5.30 The site lies at approximately 75m AOD on a south-facing slope some 0.8km east of Broad Oak. The underlying geology is mapped as valley gravel deposits of the Quaternary period (BGS 1974). Fieldwork showed that this consisted of sand with frequent rounded or sub-angular pebbles. Period 10 (Undated) 5.31 In the centre of the site was a sinuous north/south orientated ditch 4.07.006, the fill, 4.07.007, of which was cut by posthole 4.07.008. The nearby features were pit 4.07.004 and postholes 4.07.010, 4.07.012 and 4.07.014. Site OTA 4.08 (NGR SY 0811 9309; Figs 5 & 22) 5.32 The site lies between 50m AOD in the west and 70m AOD in the east on a southfacing slope some 0.8km east of the village of Broad Oak. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of sand with frequent rounded or sub-angular pebbles. Period 10 (Undated) 5.33 Located in the southern part of the site were north-west/south-east orientated ditches 4.08.004, 4.08.011, 4.08.006 and 4.08.009. They were aligned approximately parallel to the northern field boundary and may be agricultural features. Site OTA 4.09 (NGR SY 0799 9295; Figs 5, 6, 22 & 23) 5.34 The site lies at approximately 55m AOD on a south facing slope some 0.7km east of the village of Broad Oak. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of silty sand with frequent rounded or sub-angular pebbles. Period 10 (Undated) 5.35 At the north-eastern end of the site was north-west/south-east orientated ditch 4.09.008 and pit 4.09.006. 26 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.36 © Cotswold Archaeology Located in the centre of the site was east/west orientated ditch 4.09.004. In the southern part of the site was north/south orientated ditch 4.09.010. These correspond to field boundaries seen on the 1891 OS map (NA 2000a). Site OTA 4.10 (NGR SY 0782 9279; Figs 5, 6 & 23) 5.37 The site lies at approximately 60m AOD at the base of a south-facing slope some 0.5km east of the village of Broad Oak. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of silty sand with rounded or sub-angular pebbles. Period 3 (Bronze Age) 5.38 At the centre of the site was north-west/south-east orientated ditch 4.10.008, which measured 1.9m in width and 0.75m in depth. The third fill, 4.10.011, contained 13 sherds of Middle Bronze Age pottery from a plain Trevisker vessel and small quantities of charcoal. The fourth fill, 4.10.012, of this ditch contained six sherds of Exeter Volcanic fabric Middle Bronze Age pottery. 5.39 Lying 50m to the south-west was pit 4.10.016, which measured 0.8m in diameter and 0.21m in depth. The primary fill, 4.10.017, of this pit contained six sherds of Bronze Age pottery and one piece of worked flint. Sample 213 from this deposit contained mainly oak charcoal. Period 5 (Roman) 5.40 In the southern part of the site was north-west/south-east orientated ditch 4.10.018, which measured 3.40m in width and 1.5m in depth. The fifth fill, 4.10.023, contained one abraded sherd of possible Roman pottery. Period 10 (Undated) 5.41 Located at the north-eastern end of the site was north/south orientated ditch 4.10.006. Nearby was pit 4.10.004 which yielded no remains although its fill, 4.10.005, was sampled (sample 212). In the centre of the site was north-west/south east orientated ditch 4.10.013 which corresponds with a field boundary on the 1845 Tithe map (NA 2000a). In the south-western part of the site was north-west/southeast orientated ditch 4.10.025. 27 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site OTA 4.12 (NGR SY 0761 9257; Figs 6 & 23) 5.42 The site lies at approximately 58m AOD at the base of a south-facing slope some 0.4km south-east of the village of Broad Oak. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of sand with rounded or sub-angular pebbles. The geophysical survey in this plot produced unclear results (Archaeological Surveys 2006, fig. 36, area 17b). Period 10 (Undated) 5.43 Located in the southern part of the site at the base of a steep slope was ditch 4.12.004, which measured 6m in width and 2m in depth, with a symmetrical u-shaped profile. The fills, 4.12.005 to 4.12.019, were laid down under waterlogged conditions. Sediment analysis from a series of column samples (216-220) suggests that it may have been a palaeochannel (Appendix 17). Site OTA 5.01 (NGR SY 0754 9251; Figs 6, 24 & 25) 5.44 The site lies at approximately 67m AOD on an east-facing slope some 0.4km southeast of the village of Broad Oak. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of sand with frequent rounded or sub-angular pebbles. 5.45 The geophysical survey had identified part of a ring-ditch with a projected diameter of about 25m immediately adjacent to a former double-ditched field boundary (Archaeological Surveys 2006, fig.38, areas 18a and 18b). Period 3 (Bronze Age) 5.46 At the south-western end of the site was east/west orientated ditch terminus 5.01.079. This feature continues into site 5.02 and was recorded as ditch 5.02.004 and contained a probable sherd of Middle Bronze Age pottery. Period 10 (Undated) 5.47 In the north-eastern part of the site was part of a ring-ditch 5.01.020, measuring between 2.5m and 3.3m in width with a maximum depth of 1.65m. The excavation of a substantial portion of it yielded no finds, and the three assessed soil samples (175, 179, 182) had a very low potential. Within the area delineated by ring-ditch 5.01.020 was mound material 5.01.025, 5.01.026 (n.i.), 5.01.038 (n.i.), 5.01.046 (n.i.), 5.01.069 (n.i.), 5.01.070 (n.i) and pit/posthole 5.01.047. To the north of ring-ditch were pit 5.01.015 and posthole 5.01.017, with diameters of 0.36m and 0.26m respectively. 28 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.48 © Cotswold Archaeology Also in the north-eastern part of the site were north-east/south-west orientated ditches 5.01.014 and 5.01.082, apparently former field boundary ditches, probably dating to the post-medieval period but possibly slightly earlier. 5.49 Located in the centre of the site were north/south orientated ditches 5.01.073 and 202.004, the latter identified within trial trench 202, to the west of these were northwest/south-east orientated ditches 5.01.075 and 5.01.077. Site OTA 5.02 (NGR SY 0735 9245; Figs 6 & 25) 5.50 The site lies at approximately 75m AOD on the flat summit of a hill some 0.4km south of the village of Broad Oak. The underlying geology is mapped as Upper Sandstone of the Triassic era (BGS 1974). Fieldwork showed that this consisted of sand. Period 3 (Bronze Age) 5.51 At the eastern end of the site was east/west orientated ditch 5.02.004, which measured 0.70m in width and 0.24m in depth. The fill, 5.02.005, contained one sherd of probable Middle Bronze Age grogged fabric pottery. This feature was recorded in site 5.01 as ditch terminus 5.01.079. Site OTA 7A.04 (NGR SY 0614 9266; Figs 6 & 26) 5.52 The site lies at approximately 120m AOD on a south facing slope some 0.5km southwest of the village of Broad Oak. The underlying geology is mapped as Budleigh Salterton Pebble Beds of the Triassic era (BGS 1995). Fieldwork showed that this consisted of sandy silt with lenses of pebbles. Period 10 (Undated) 5.53 At the north-western end of the site was north-west/south-east orientated ditch 7a.04.004, which measured 10.1m in width and 0.5m in depth and may represent a former trackway/hollow way. Site OTA 7A.06 (NGR SY 0580 9263; Figs 6 & 26) 5.54 The site lies at approximately 140m AOD on an east-facing slope some 0.8km southwest of the village of Broad Oak. The underlying geology is mapped as Budleigh Salterton Pebble Beds of the Triassic era (BGS 1995). Fieldwork showed that this consisted of silt with cobble and pebble inclusions. 29 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 10 (Undated) 5.55 At the north-east end of the site was north-west/south-east orientated ditch 7a.06.008. In the south-western part of the site was posthole 7a.06.009. Site OTA 8A.01 (NGR SY 0526 9168; Figs 6 & 27) 5.56 The site lies at approximately 143m AOD on gently undulating ground some 1.1km east of the village of Aylesbeare. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of silty clay with pebble and cobble inclusions. Period 10 (Undated) 5.57 At the centre of the site were north-west/south-east orientated ditches 8a.01.004, 8a.01.006 and 8a.01.008. Located at the southern end of the site was pit 8a.01.010. The ditches correspond with a field boundary seen on the tithe map of 1842 (NA 2000a). Site OTA 8A.06 (NGR SY 0526 9168; Figs 6 & 27) 5.58 The site lies at approximately 147m AOD on gently undulating ground some 0.6km east of the village of Aylesbeare. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of silty clay with pebble and cobble inclusions. Period 10 (Undated) 5.59 Located in the west of the site was small pit 8a.06.004. Site OTA 9.01 (NGR SY 0472 9103; Figs 6 & 28) 5.60 The site lies at approximately 150m AOD on a north facing-slope some 0.5km southeast of the village of Aylesbeare. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of sand with frequent rounded or sub-angular pebbles. Period 10 (Undated) 5.61 Located at the centre of the site were north-east/south-west orientated ditches 9.01.004 and 9.01.006. These ditches follow the same alignment as existing field boundaries. 30 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site OTA 9.02 (NGR SY 0473 9086; Figs 6 & 28) 5.62 The site lies at approximately 159m AOD on a south-facing slope some 0.7km southeast of Aylesbeare. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of silt with frequent rounded or sub-angular pebbles. Period 10 (Undated) 5.63 Located in the north east of the site were north-east/south-west orientated ditches 9.02.003 and 9.02.005. Located in the centre of the site were pits 9.02.015 and 9.02.007. North-east/south-west orientated ditches 9.02.011 and 9.02.013 appear to be the continuation of ditches 9.01.007 and 9.01.005 respectively. These ditches (9.02.003, 9.02.005, 9.02.011 and 9.02.013) follow the same alignment as existing field boundaries and may represent former subdivisions of this field. 5.64 A residual sherd of Early Neolithic pottery was retrieved from ditch 9.02.11. Site ATK 0.02 (NGR SY 043 908; Figs 7 & 29) 5.65 The site lies at approximately 135m AOD, on a west-facing slope some 0.5km south of the village of Aylesbeare. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of clay silt with pebble lenses. Period 10 (Undated) 5.66 Located in the western part of the site was north/south orientated ditch 0.02.004. Site ATK 0.03 (NGR SY 042 908; Figs 7 & 29) 5.67 The site lies at approximately 132m AOD on a west-facing slope some 0.5km south of the village of Aylesbeare. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of clay-silt with frequent pebble inclusions. Period 10 (Undated) 5.68 Located in the eastern part of the site was curvilinear ditch 0.03.004. Located in the western part of the site was north-east/south-west orientated ditch 0.03.006. 31 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site ATK 0.04 (NGR SY 041 908 Figs 7 & 30) 5.69 The site lies at approximately 132m AOD on a west-facing slope some 0.5km south of Aylesbeare. The underlying geology is mapped as Aylesbeare Mudstone which was shown to comprise clay-silt with pebbles. The Archaeology and Heritage Survey had identified two circular undated, but possibly prehistoric cropmarks in this field (CA 2005, site 16). Geophysical survey located just faint linear anomalies within the pipeline easement (Archaeological Surveys 2006, Plot 0.04). These were targeted with three trial trenches, 306, 307 and 308. Period 10 (Undated) 5.70 In the middle and east of the site were three narrow north-west/south-east orientated ditches, 308.04, 307.04 and 307.06, identified during trial trenching. In the west of the field north-east/south-west orientated ditch 306.04 was identified. Site ATK 4.04 (NGR SY 024 894; Figs 7 & 31) 5.71 The site lies between 75m AOD in the north and 85m AOD in the south, situated on a north facing slope some 1km east of Woodbury Salterton. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of clay with bands of rounded cobbles. Period 10 (Undated) 5.72 In the centre of the site was a group of four ditches, probably relating to the former subdivision of this large field. Ditches 4.04.010, 4.04.008 and 4.04.006 were orientated north-west/south-east, and ditch 4.04.004 curved more east/west. Site ATK 4a.01 (NGR SY 021 890; Figs 7 & 31) 5.73 The site lies at approximately 75m AOD, situated on a west facing slope some 0.7km east of Woodbury Salterton. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of clay with stone inclusions. Linear and possible rectangular enclosure cropmarks have been plotted in this field and the field to the south (CA 2005, sites 64, 66). Period 10 (Undated) 5.74 Located in the southern part of the site were a group of three ditches, 4a.01.004, 4a.01.006 and 4a.01.008. All of these features were orientated north-east/south- 32 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology west. A sherd of probable Trevisker Ware (?Middle Bronze Age) pottery was retrieved from the subsoil. Site ATK 6.06 (NGR SY 015 879; Figs 7 & 32) 5.75 The site lies at approximately 85m AOD on a west-facing slope some 0.4km south of Woodbury Salterton. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of clay with rounded pebble inclusions. Period 10 (Undated) 5.76 Located in the centre of the site was north-west/south-east orientated ditch 6.06.004. Site ATK 7.01 (NGR SY 012 878; Figs 7 & 32) 5.77 The site lies at approximately 70m AOD on a south-facing slope some 0.2km north of the town of Woodbury. The underlying geology is mapped as Aylesbeare Mudstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of sand overlying clay containing rounded and sub-angular stones. A possible oval cropmark of uncertain derivation was identified in the adjacent field (Plot 7.02) (CA 2005, site 92). Period 10 (Undated) 5.78 Trench 314 was located in the eastern part of plot 7.01. At the eastern end of the trench north-east/south-west orientated ditch 314.004 was identified. 5.79 Located at the centre of the site was pit 7.01.004, which measured 0.36m in diameter and 0.26m deep, the fill of which was a mid brown sandy silt with very occasional charcoal inclusions. A small soil sample (sample 289) yielded only modern remains, although this may have resulted from contamination. 5.80 Nineteen worked flints were recovered from superficial deposits. These are generally late Neolithic to Bronze Age in character. Site ATK 9.01 (NGR SY 004 869; Figs 8 & 32) 5.81 The site lies at approximately 45m AOD on a west-facing slope some 0.3km west of the town of Woodbury. The underlying geology is mapped as Exmouth Mudstone and Sandstone of the Triassic era (BGS 1995). Fieldwork showed that this consisted of clay and sand bands. 33 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 10 (Undated) 5.82 Located at the southern end of the site was north-west/south-east orientated ditch 9.01.004 which may represent a former field boundary. Site ATK 11.04 (NGR SX 991 856; Figs 8 & 33) 5.83 The site lies at approximately 35m AOD on the flat, low-lying valley of the River Exe, which runs approximately 0.8km to the west. It is situated some 0.3km south-east of Exton. The underlying geology is mapped as Exmouth Mudstone and Sandstone of the Triassic era (BGS 1976b). Fieldwork showed that this consisted of sandy silt with rounded and sub-angular pebbles. A large, oval cropmark, recorded as a possible enclosure, lies 150m to the north-east in the adjacent field (CA 2005a, site 149). Period 10 (Undated) 5.84 At the centre of the site was north/south orientated ditch 11.04.004, which measured 4.5m wide and 2m deep. At the south-western end of the site was curvilinear ditch 11.04.034, which measured 2.85m wide and was in excess of 1.3m deep, the true depth was not established due to the instability of the sides. Both these features contained leached naturally derived fills, difficult to distinguish from the surrounding natural substrate, and had steep, symmetrical profiles. Site ATK 12.01 (NGR SX 988 855; Figs 8 & 34) 5.85 The site lies at approximately 26m AOD on a terrace of the River Exe, which runs approximately 0.5km to the south-west. It is situated some 0.2km south of Exton. The underlying geology is mapped as Pleistocene Alluvial River Deposits (BGS 1976b). Fieldwork showed that this consisted of sandy clay with rounded and sub-angular pebbles. Period 8 (Post-medieval) 5.86 In the western part of the site was a partially upstanding building, 12.01.01, constructed of cob (clay subsoil, stone and straw), which measured 13m in length and 5.8m in width. It was constructed on a lime concrete plinth, with similar lime concrete foundations built off a large rounded cobble hardcore layer. Within the structure was a floor of rounded cobbles (0.10m to 0.15m in size). A central corridor of rammed earth and handmade brick edging separated the two halves of the building and led from a central doorway. To the west of the central doorway was a large opening possibly for animals. In the opposite wall on the south-west side of the 34 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology building was a similar entranceway. These two large entranceways and the lack of a hearth or fireplace suggest an agricultural rather than domestic use for the building. A quantity of roof-tile and small amounts of slate (both Cornish Delabole and Devon slates) were recovered from around the building, suggesting it was roofed with different materials at different times. 5.87 The earliest activity identified was wall construction cut 12.01.013 (n.i), the primary deposit (12.01.014) which consisted of a layer of large rounded cobbles onto which foundation 12.01.015 (n.i), consisting of lime concrete and large rounded cobbles, was built. The wall construction was continued with a plinth of lime concrete and cobbles (12.01.016) and the cob wall itself (12.01.017). 5.88 Abutting wall 12.01.017 was bedding layer 12.01.018, onto which floor layer 12.01.019, consisting of rounded cobbles, was laid. Abutting these were edging layers 12.01.023 and 12.01.027 (with second course 12.01.028), consisting of handmade bricks which formed the edges of an un-surfaced corridor 12.01.011 running across the centre of the building. Also butted against floor layer 12.01.019 were steps 12.01.020, 12.01.021 and 12.01.022, also constructed of handmade bricks. Deposited on layer 12.01.019 was a spread of un-mortared bricks 12.01.029 dating to the post-medieval period, which represented material deposited/stored within the building during its usage phase. 5.89 Cut into cobble layer 12.01.019 was posthole 12.01.025 (n.i). At the north-eastern end of the building were post-pad 12.01.024, which possibly related to a large entrance way in the north-east corner of the building, and associated mud-andcobble entrance ramp 315.020. The disuse phase of the building was represented by deposit 12.01.030 (n.i.), consisting of cob-silt and decomposed organic material, which overlay all of the deposits within the building. It contained 29 sherds of medieval and post-medieval pottery (with a terminus post quem of around the 16th century) as well as six pieces of glass, 76 pieces of tile and pantile and 48 iron objects. A similar disuse layer, 12.01.031 (n.i.), of silt, rubble and decomposed organic material built up against the outside walls of the building, this was in turn overlain by similar disuse layers 12.01.032 (n.i.) and 12.01.033 (n.i.), which contained one fragment of clay pipe and 26 pieces of tile and pantile. All these layers were subsequently overlain by wall collapse layer 12.01.034 (n.i.), which was sealed by turf and topsoil layer 12.01.035 (n.i.). 35 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site ATK 12.10 (NGR SX 965 847; Figs 8 & 35) 5.90 The site lies at approximately 19m AOD on the valley side of the River Exe, which runs approximately 0.5km to the east. Located some 1.2km north-east of the town of Kenton. The underlying geology is mapped as Dawlish Sandstone of the Permian era (BGS 1976b). Fieldwork showed that this consisted of bands of silt and sand. Period 10 (Undated) 5.91 Located in the western part of the site were east/west orientated ditch 12.10.004 and pit 12.10.006. Site ATK 12.12 (NGR SX 960 849; Figs 9, 35 & 36) 5.92 The site lies at approximately 18m AOD some 1.2km north of Kenton, on the valley side of the River Exe, which runs approximately 0.75km to the east. The underlying geology is mapped as Dawlish Sandstone of the Permian era (BGS 1976b) which fieldwork showed to consist of sandy silt. Cropmarks in this field show a complex of rectangular enclosures thought possibly to represent medieval building plots (CA 2005, sites 190, 192). The geophysical survey showed the corner of an apparent rectangular enclosure and other linear anomalies (Archaeological Surveys 2006, figs 35, 36). The scale of the cropmark plot does not allow a precise correlation with geophysical survey, although the alignments of the features are very similar. Period 10 (Undated) 5.93 At the centre of the site was an east/west orientated trackway 12.12.004, 2m wide, which consisted of angular stones. Its alignment is close to that of the possible enclosure on the geophysical survey, and it appears to correspond to a positive anomaly depicted on the northern side of the enclosure. The trackway is thought to represent a modern agricultural feature. Several worked flints came from superficial deposits in this field. 5.94 In the western part of the site was curving ditch terminus 12.12.011, which measured 0.82m in width and 0.47m in depth, located to the west of this was pit 12.12.014, which measured 0.80m in diameter and 0.21m in depth, the single fill 12.12.015, of which consisted a dark brown sandy silt. Site ATK 12.13 (NGR SX 957 849; Figs 9 & 36) 36 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.95 © Cotswold Archaeology The site lies at approximately 23m AOD on flat land south of Exwell Barton and some 1.5km north of Kenton. The underlying geology is mapped as Dawlish Sandstone of the Permian era (BGS 1976b). Fieldwork showed that this consisted of sand. Period 10 (Undated) 5.96 In the western part of the site was north-east/south-west orientated ditch 12.13.004 cut by north-west/south-east orientated ditch 12.13.006. Ditch 12.13.006 runs parallel to the present field boundary and may be a former land division. Two sherds of possible Middle Bronze Age pottery came from superficial deposits in this plot. Site ATK 13.01 (NGR SX 955 849; Fig 9 & 37) 5.97 The site lies at approximately 16 m AOD south of Exwell Barton on Dawlish Sandstone. 5.98 Four ditches, 13.01.004, 13.01.006, 13.01.008 and 13.01.010, orientated northeast/south-west were identified. These are likely to represent former subdivisions of this large field. Site ATK 13.02 (NGR SX 954 851; Figs 9, 38 & 39) 5.99 The site lies at approximately 16m AOD, situated on the flat land south-west of Exwell Barton some 2km south-east of the town of Exminster. The underlying geology is mapped as Dawlish Sandstone of the Permian era (BGS 1976b). Fieldwork showed that this consisted of silty sand. 5.100 The site was recognised through undated cropmarks of an enclosure and other ditches (CA 2005, Sites 193, 196). Geophysical survey could not be undertaken due to crop cover (Archaeological Surveys 2006). Period 4 (Iron Age) 5.101 In the centre of the site was north-west/south-east orientated ditch 13.02.123 (Fig. 39), which measured 1.48m in width and 0.47m in depth. The fill, 13.02.124, contained eight sherds of possibly Iron Age pottery. It was cut by undated ditch 13.02.127 at its northern end. Parallel to ditch 13.02.123 was north-west/south-east orientated ditch terminus 13.02.175, which measured 0.97m in width and 0.34m in depth. The fill, 13.02.176, contained one sherd of possibly Middle Bronze Age pottery. Both ditches were present in Trial Trench 324 to the south. The ditches are 37 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology likely to have been contemporary and it is likely that some of the pottery is either residual, or has been mis-identified. Period 7 (Medieval) 5.102 This site consists of a medieval longhouse without a surviving wall, but of possible cob construction, with surrounding drainage gullies and a possible internal make up layer into which a large circular hearth was cut. In association with this feature was a sunken floored building with an internal hearth cut into the base of the feature, which suggests that the natural base of the cut was utilised as the floor of the building. Surrounding these features were a series of ditches, mostly dated to the postmedieval period, but others of medieval date. Enclosure ditches 5.103 In the south-eastern part of the site was north-west/south-east orientated ditch 13.02.067, which contained seven sherds of 12th to 14th-century pottery within fill 13.02.102 and one sherd of 12th to 13th-century pottery within fill 13.02.072. Its secondary fill, 13.02.106, was cut by north-east/south-west orientated ditches 13.02.271 and 13.02.270. The fill, 13.02.167, of ditch 13.02.271 contained one sherd of 12th to 14th-century pottery. Fill, 13.02.112, of ditch 13.02.270 contained two sherds of 13th to 14th-century pottery and was cut by north-east/south-west orientated ditch 13.02.269, which in turn was cut by pit 13.02.161 (fill 13.02.162) which contained four sherds of 12th to 14th-century pottery and a possible iron knife. Ditch 13.02.269 also cut pit 13.02.156 (fill 13.02.157). The primary fill, 13.02.114, of ditch 13.02.269 contained two sherds of 12th to 14th-century pottery. Longhouse and associated features 5.104 Located in the south-eastern part of the site were the surrounding ditches, hearth and possible floor surfaces of a longhouse with associated post holes, pits and ditches. Early phase ditch 13.02.270 was cut by rectilinear ditch 13.02.073, which enclosed an area in excess of 10m in length and up to 8m in width and was interpreted as a drainage gully surrounding a possible cob-built long house. The primary fills of ditch 13.02.073, contained one sherd of 12th to 14th-century pottery in 13.02.060; later fills 13.02.062, 13.02.064, 13.02.070, 13.02.093 and 13.02.116, contained 23 sherds of pottery generally in the 13th to14th century date range. 38 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.105 Lying within the area enclosed by ditch 13.02.073 were spreads of charcoal 13.02.221 (ni), 13.02.220 (ni), postholes 13.02.210 (n.i), 13.02.219 and pit 13.02.222 (ni). The fill, 13.02.223, of pit 13.02.222 contained two sherds of 12th to 14th-century pottery. It was cut by pit 13.02.228 (ni) which contained a good assemblage of charred crop waste (samples 163 and 164). 5.106 These features were cut by construction/levelling cut 13.02.236/13.02.195 (ni). This was filled by make-up layer 13.02.194, which contained two sherds of 13th to 14thcentury pottery and one piece of worked flint. Onto this make-up were laid post pads 13.02.198 (n.i.) and 13.02.199 (n.i.). Make-up layer 13.02.194 was in turn partially overlain in the south-western area of 13.02.236 by make up layer 13.02.237/13.02.227/ 13.02.094 which contained nine sherds of 13th to 14th-century pottery. Cut into this layer was hearth 13.02.132, which measured 1.85m in diameter and 0.19m in depth and consisted of a cut (13.02.177), filled by a circular quartz base (13.02.169), which contained 21 sherds of 13th to 15th-century pottery. The hearth base was overlain by outer ring of stones 13.02.168 and 13.02.190, which contained 193 sherds of 12th to 14th-century pottery within their make-up. The stones were overlain by baked clay deposits 13.02.165 and 13.02.189 which contained 562 sherds of 13th to 14th-century pottery and 459 sherds of 13th to 14th-century pottery respectively (weighing a total of 6.78kg) which may relate to the structure of the hearth. This was covered by compact silty layer 13.02.158 (n.i). 5.107 Over this lay ring of stones 13.02.135 which may represent a repair or rebuild of the hearth and contained 115 sherds of 13th to 15th-century pottery and one piece of redeposited worked flint. Sealing these was baked clay layer 13.02.134/13.02.185 which formed the functional surface of the hearth and contained 78 sherds of 12th to 14th-century pottery between them. Overlying this was deposit 13.02.133 which represents usage deposits and degradation of the hearth surface. 5.108 Deposit 13.02.193, which represents the former floor surface of the building overlay make-up layer 13.02.194. Layer 13.02.194 was cut by pit 13.02.047 (fill 13.02.048) which contained two sherds of 12th to 14th century pottery. Within the long house was (undated) pit 13.02.045. Immediately north-west of this was pit 13.02.035 containing a sherd of 12th to 14th-century pottery (fill 13.02.036). 39 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.109 To the north-west of the long house was pit 13.02.025. No dating evidence was recovered from these features, but they were attributed to the medieval period by proximity and similarity with dateable features. Sunken Floored Building 5.110 Within the south-eastern part of the site was north-east/south-west orientated ditch 13.02.244/13.02.230/13.02.240, which measured 0.48m in width and 0.19m in depth. The secondary fill, 13.02.246, of which contained one sherd of medieval pottery and was cut by Sunken Floored Building (SFB) 13.02.272. 5.111 Sunken Floored Building 13.02.272 measured 5.7m in length, 3.75m in width and 0.4m in depth. The base of the feature appeared to have been used as a floor. Charcoal rich primary deposits 13.02.213 and 13.02.209 may represent industrial activity during the usage phase of the building. The secondary fill, 13.02.202, contained 14 sherds of 12th to 14th-century pottery, the fifth fill, 13.02.208/ 13.02.212, five further sherds and one piece of redeposited worked flint. Located within this feature was hearth 13.02.273, which measured 1.8m in diameter and 0.4m in depth and consisted of circular base of stones, 13.02.235, surrounded by ring of compact sandy silt, 13.02.206 to the west of this was the base of a second possibly earlier hearth 13.02.203 . Features to the south-east and north-west 5.112 In the south-eastern part of the site was linear ditch 13.02.251, the fill, 13.02.250, of which contained two sherds of 12th to 14th-century pottery. Posthole 13.02.121 contained one sherd of medieval pottery within fill, 13.02.122, which was subsequently cut by pit 13.02.267. 5.113 North-west of the SFB was pit 13.02.163 (Fig. 39), the primary fills 13.02.164 and 13.02.192, of which contained five sherds of 12th to 15th -century pottery. Period 8 (Post-medieval) 5.114 Located at the south-eastern end of the site was north-west/south-east orientated ditch 13.02.010, which measured 2.9m in width and 0.25m in depth. The primary fills (13.02.012, 13.02.020, 13.02.110) contained several sherds of post-medieval pottery. Also in the south-eastern part of the site was north-west/south-east orientated ditch 13.02.125, which measured 2.4m in width and 0.49m in depth and was on the same alignment as ditch 13.02.010. The primary fills, (13.02.058, 13.02.077) contained 40 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology three sherds of 16th to 18th-century pottery, and a possible medieval sherd. Between ditches 13.02.010 and 13.02.125 was spread of clay and stone 13.02.051, interpreted as consolidation for a possible field entrance, and possibly including the re-used cob material from the medieval long house. This spread (13.01.051) was subsequently cut by pit 13.02.267, which measured in excess of 4.75m in length, 2.9m in width and 1.06m in depth. It contained 16th to 18th century pottery, clay pipe, several iron objects and an object of lead (fills 13.02.140, 13.02.120). Immediately north-west was similar pit 13.02.268, which measured 4.39m in length, 2.5m in width and 0.99m in depth. Fills 13.02.152 and 13.02.033 contained 20 sherds of 16th to 18th-century pottery, three fragments of clay pipe and seven iron objects. 5.115 In the south-eastern part of the site was ditch 13.02.159, which measured 0.93m in width and 0.21m in depth. The primary fill, 13.02.160, contained two sherds of 18thcentury pottery and one piece of coal. An environmental sample <105> recovered from secondary fill 13.02.006 identified large quantities of bivalve shells and small quantities of oyster shells, magnetic material, fish scale, small mammal bones, burnt mammal bones and charcoal. 5.116 Cut into the fill, 13.02.044, of longhouse gully 13.02.073 was pit 13.02.174, the fill, 13.02.097, of which contained nine sherds of early post-medieval pottery. Period 10 (Undated) 5.117 At the south-eastern end of the site was north-east/south-west orientated gully 13.02.252 which was traced for 5m. Within the longhouse was pit 13.02.068, which cut make-up layer 13.02.227 and although smaller, is similar in shape to postmedieval pits 13.02.267 and 13.02.268. To the west of ditch 13.02.073 was pit 13.02.028. 5.118 In the centre of the site were a group of ditches (Fig. 39). The earliest was northeast/south-west orientated ditch 13.02.009, cut by north-east/south-west orientated ditch 13.02.126 which in turn was cut by north-east/south-west orientated ditch 13.02.127. This was aligned with the present field boundaries and may be postmedieval. Also at the centre of the site were parallel north-east/south-west orientated ditches 13.02.256 and 13.02.274, which follow the line of an existing field boundary. 5.119 Also in the centre of the site were pit/posthole 13.02.262 and posthole 13.02.017. To the south-east of these features was north-east/south-west orientated ditch 41 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 13.02.254, which is likely to have been a post-medieval field boundary, as is ditch 13.02.264 to the north-west. Site ATK 14.01 (NGR SX 950 852; Figs 9 & 40) 5.120 The site lies at approximately 14m AOD on a north-east facing slope at Blackheath Farm, some 1.8km south-east of the town of Exminster. The underlying geology is mapped as Dawlish Sandstone of the Permian era (BGS 1976b). Fieldwork showed that this consisted of sand. Period 10 (Undated) 5.121 Located in the south-eastern part of the site were north-east/south-west orientated ditch 14.01.004, pit 14.01.008 and north-west/south-east orientated ditch 14.01.006. Site ATK 14.02 (NGR SX 948 854; Figs 9 & 40) 5.122 The site lies at approximately 14m AOD on an east-facing slope at Blackheath Farm, some 1.7km south-east of the town of Exminster. The underlying geology is mapped as Dawlish Sandstone of the Permian era (BGS 1976b). Fieldwork showed that this consisted of sand. Period 10 (Undated) 5.123 At the southern end of the site were parallel north-east/south-west orientated field boundary ditches 14.02.004 and 14.02.006. Ditch 14.02.011 intersected 14.02.006 at right-angles, and was considered to be contemporary because of the similarity of the ditch fills. The fill, 14.02.007, of ditch 14.02.006 was cut by pit 14.02.008, which measured 5.5m in length, in excess of 2.8m in width and 0.33m in depth and possibly represents small scale quarrying of the underlying sand. All these features are thought to be relatively recent. Site ATK 14.03 (NGR SX 948 855; Figs 9 & 41) 5.124 The site lies at approximately 30m AOD on a north-facing slope at Blackheath Farm, some 1.6km south of the town of Exminster. The underlying geology is mapped as Dawlish Sandstone, including Breccias deposits of the Permian era (BGS 1976b). Fieldwork showed that this consisted of sandy silt with frequent stone inclusions. Period 10 (Undated) 5.125 Located in the south-eastern part of the site were north-east/south-west orientated ditches 14.03.004 and 14.03.006. 42 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site ATK 14.08 (NGR SX 943 605; Figs 9 & 41) 5.126 The site lies between 25m AOD in the south-east and 30m AOD in the north-west, on an east-facing slope some 1km south of the town of Exminster. The underlying geology is mapped as Dawlish Sandstone, including Breccias deposits of the Permian era (BGS 1995). Fieldwork showed that this consisted of sand with angular and sub-angular stones. Period 10 (Undated) 5.127 Located in the southern part of the site were north-east/south-west orientated ditches 14.08.004 and 14.08.006. These features broadly correspond with ditches seen on the 1825 tithe map (NA 2000b) Site ATK 14.09 (NGR SX 940 862; Figs 9 & 42) 5.128 The site lies at approximately 38m AOD on an east-facing slope some 0.9km southwest of the town of Exminster. The underlying geology is mapped as Dawlish Sandstone, including Breccias deposits of the Permian era (BGS 1995). Fieldwork showed that this consisted of sand with angular and sub-angular stones. Period 3 (Bronze Age) 5.129 A group of five pits was located in the eastern part of the site. They were initially thought to be cremation pits, although soil samples yielded no cremated bone and the purpose of the pits is not clear. 5.130 Pit 14.09.018, measured 0.23m in diameter and 60mm in depth. The fill (14.09.020) contained 11 sherds of Early to Middle Bronze Age Trevisker style pottery. Pit 14.09.003, measured 0.51m in width and 0.24m in depth. The fill (14.09.005/14.09.006) contained about a quarter of a complete Trevisker vessel (14.09.004) which was lifted in a block comprising damaged rim and expansion, suggesting a possible inverted deposition. Gorse/broom charcoal from this pit (sample 207) returned a radiocarbon date of 367-201 cal. BC. This is a relatively late date and it is possible that the charcoal was intrusive. 5.131 South of pit 14.09.003 was pit 14.09.016, which measured 0.7m in length, 0.4m in width and 30mm in depth. The fill (14.09.008/14.09.009) contained 14 sherds of Middle Bronze Age pottery, one piece of worked flint and small quantities of charcoal 43 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology and charred cereal grains. A sample of hazel charcoal (soil sample 203) returned a radiocarbon date of 1627-1504 cal. BC. 5.132 To the south of this was elongated pit 14.09.019, which measured 2.83m in length, 0.98m in width and 0.15m in depth. The fill (14.09.013) contained two sherds of Middle Bronze Age pottery. To the north of pit 14.09.016 was the severely truncated base of pit 14.09.007, which contained a fragment of a copper alloy pin. Period 10 (Undated) 5.133 In the eastern part of the site was curvilinear ditch 14.09.021, potentially the remains of a ring-ditch. In the centre of the site were north-west/south-east orientated ditches 14.09.027 and 14.09.025 which are likely to represent a former field boundary as depicted on the 1825 Tithe map (NA 2000b). In the western part of the site was north-east/south-west orientated ditch 14.09.030. Site ATK 15.02 (NGR SX 935 862; Figs 9 & 43) 5.134 The site lies between 40m AOD in the east to 55m AOD in the west on an east-facing slope some 1.6km north-east of the town of Kenn. The underlying geology is mapped as Dawlish Sandstone, including Breccias deposits of the Permian era (BGS 1995). Fieldwork showed that this consisted of sand. Period 10 (Undated) 5.135 In the eastern part of the site was rectilinear ditch 15.02.018, running from an eastern terminal and curving at its western end. In the western part of the site was a group of four post holes 15.02.010, 15.02.014, 15.02.016 and 15.02.012, with diameters of 0.22m and depths of between 0.10m and 0.14m. They may have formed an irregular rectangular structure c 1.0 x 1.5m square. Site ATK 15.03 (NGR SX 934 862; Figs 9 & 43) 5.136 The site lies at approximately 60m AOD on the summit of a hill some 1.5km northeast of the town of Kenn. The underlying geology is mapped as Dawlish Sandstone, including Breccias deposits of the Permian era (BGS 1995). Fieldwork showed that this consisted of sandstone and sand. Period 10 (Undated) 44 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.137 At the eastern end of the site was north/south orientated ditch 15.03.004, which measured 3.2m in width and 0.26m in depth. This feature runs parallel to the existing field boundary and may represent a former field boundary ditch. Site FTC 1.01 (NGR SX 8163 6444; Figs 10 & 44) 5.138 The site lies at approximately 18m AOD, on flat, low-lying land 2.2km north-east of Staverton between the River Hems, which runs approximately 2km to the south-west, and the Am Brook, which runs approximately 1.5km to the south-east. The underlying geology is mapped as Limestone of the Middle Devonian era (BGS 1976a). Fieldwork showed that this was, in fact, soft shale-schist in a clay-silt matrix. Fieldwalking in 2001 yielded just four sherds of medieval and later pottery (CA 2001). Period 10 (Undated) 5.139 At the north-eastern end of the site was north-west/south-east orientated ditch 1.01.004, and pit 1.01.006. In the centre of the site were ditch 1.01.008 and ditch terminus 1.01.015. Both these features were orientated north-west/south-east. Site FTC 2.02 (NGR SX 8104 6424; Figs 10 & 45) 5.140 The site lies at approximately 20m AOD, on the flat, low-lying valley of the River Hems, which runs approximately 1km to the north and is located 1.6km north-east of Staverton. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1976a). Fieldwork showed that this consisted of shillet with clay lenses. Fieldwalking in 2001 yielded eight worked flints of probable Late Neolithic and/or Bronze Age date (Appendix 1). Period 2 (Neolithic) 5.141 At the centre of the site was a group of six pits 2.02.004, 2.02.006, 2.02.010, 2.02.013, 2.02.016 and 2.02.018. Pit 2.02.004 was 0.78m in diameter and 0.18m in depth, and the fill, 2.02.005, contained 34 sherds of probable Grooved Ware (Late Neolithic) pottery, eight pieces of worked flint and four pieces of burnt stone. Pit 2.02.010 was 1.20m in width and 0.50m in depth, and secondary fill, 2.02.011, contained 27 sherds of similar Neolithic pottery and 21 pieces of worked flint, as well as charcoal. A radiocarbon determination on hazel charcoal from this deposit returned a date of 3339 cal BC – 3095 cal BC, which is early for Grooved Ware. Pit 2.02.006 measured 0.90m in width and 0.26m in depth, the secondary fill, 2.02.008, of which contained ten sherds of similar Neolithic pottery. 45 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.142 It is likely that pits 2.02.013, 2.02.016 and 2.02.018 also date to the Neolithic period, by association, although they are at present undated by artefactual material. Pit 2.02.013 measured 0.8m in width and 1.35m in depth, the secondary fill, 2.02.015, of which contained fired clay and worked flint. Pit 2.02.016 measured 0.45m in width and 0.15m in depth, the fill, 2.02.017, containing one piece of worked flint. Both pits were cut by pit 2.02.018 which was 0.75m wide and 0.26m deep. Its secondary fill, 2.02.020, contained five pieces of worked flint. Site FTC 4.01 (NGR SX 7980 6459; Figs 10 & 45) 5.143 The site lies between 77m AOD in the west and 63m AOD in the east, situated on an east facing slope some 0.7km north-east of Staverton. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1976a). Fieldwork showed that this consisted of shale beds. Period 10 (Undated) 5.144 Curvilinear ditch 4.01.015 was located at the eastern end of the site. Site FTC 7.01 (NGR SX 7850 6485; Figs 10 & 46) 5.145 The site lies at approximately 140m AOD, situated on the flat summit of a hill near Bartonhill Cross, some 1.2km north-west of Staverton. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1976a). Fieldwork showed that this consisted of shillet with clay lenses. Fieldwalking in 2001 yielded five worked flints from this field. 5.146 Site 7.01 comprised a series of pits, postholes and ditches representing a probable Romano-British settlement with Iron Age antecedents. Most of the features (particularly the small ones) are undated artefactually, but their association with dated features suggests they of the same date. Period 4 (Iron Age) 5.147 A series of intercutting features was located in the centre of the site. Curvilinear ditch 7.01.068, which measured 1.9m in width and 0.37m in depth, contained a single sherd of pottery dating to the Iron Age within fill 7.01.071. This was in turn cut by three (undated) curvilinear ditches 7.01.037, 7.01.043 and 7.01.048 which measured 0.7m, 1.45m and 1.1m in width and 0.40m, 0.77m and 0.48m in depth respectively. These may represent settlement features of later Iron Age/Roman date. 46 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.148 © Cotswold Archaeology There were numerous small pits and postholes to the east of ditch 7.01.068, only two of which contained any pottery. These were pit 7.01.035, the fill, 7.01.036, of which contained two burnished sherds of Iron Age pottery and pit 7.01.004, the fill, 7.01.005, of which contained 17 sherds of Iron Age pottery. 5.149 In this area was a group of nine more pits and postholes; 7.01.020, 7.01.022, 7.01.012, 7.01.025 and 7.01.016 had diameters of between 0.2m and 0.55m and depths of between 0.23m and 0.57m, while larger features 7.01.018, 7.01.055, 7.01.031 and 7.01.033 had diameters of between 1.2m and 1.95m and depths of between 0.15 and 0.40m. No dating evidence was recovered. Period 5 (Roman) 5.150 In the eastern area of the site was north-west/south-east orientated ditch terminus 7.01.058. The fill, 7.01.059, contained two sherds of Roman pottery. Also in the eastern half of the site was north/south orientated ditch 7.01.007, which measured 2.5m in width and 1.30m in depth. The fourth fill, 7.01.011, of this ditch contained 12 sherds of Roman pottery, two iron objects and one fragment of fired clay. Towards the western end of the site was north/south orientated ditch 7.01.072 containing 13 sherds of Roman pottery in fill 7.01.073. It is possible that ditches 7.01.007 and 7.01.072 are two boundaries of an enclosure about 80m across. Period 10 (Undated) 5.151 At the eastern end of the site was north-east/south-west orientated ditch 7.01.039, which measured 1.8m in width and 0.34m in depth. The fill, 7.01.040, of this ditch was cut by north-west/south-east orientated ditch 7.01.029, (parallel to Roman ditch 7.01.058) which was 1.23m in width and 0.60m in depth, and posthole 7.01.041 (n.i.), which measured 0.20m in diameter and 0.30m in depth. 5.152 Located in the western part of the site was posthole 7.01.082, which measured 0.22m in width and 0.15m in depth and north-west/south-east orientated ditch terminus 7.01.084, which measured 0.43m in width and 0.25m in depth. 5.153 A large possible quarry feature 7.01.087 in excess of 8m wide was located in the east of the site. Site FTC 8.01 (NGR SX 7828 6486; Figs 10 & 47) 47 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.154 The site lies between 90m AOD in the east and 60m AOD in the west, on a north facing slope north of Fursdon, some 1.4km north-west of Staverton. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1976a). Fieldwork showed that this consisted of shale with silt lenses. Period 10 (Undated) 5.155 Located in the eastern part of the site were irregularly shaped north-east/south-west orientated ditch termini 8.01.004 and 8.01.017. In the centre of the site were parallel north-east/south-west orientated ditches 8.01.011 and 8.01.008, 27m apart, and between them, on the same alignment, was possible trackway 8.01.013, which consisted of a layer of quartz pebbles. This was considered likely to be relatively recent. To the west was north-east/south-west orientated ditch 8.01.021. Site FTC 8.02, 8.03 (NGR SX 7807 6491; Figs 10 & 47) 5.156 The site lies at approximately 53m AOD, situated on flat ground at the base of a west facing slope some 200m north of the hamlet of Fursdon and 1.5km north-west of Staverton. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1976a). Fieldwork showed that this consisted of shale with silt lenses. The division of the site into two parts reflects modern field divisions. Period 2 (Neolithic) 5.157 Located at the south-western end of site 8.02 was irregular shaped north/south orientated ditch terminal 8.02.004, which measured 0.74m in width and 0.4m in depth. The fill, 8.02.005, of this ditch contained six sherds of possible Early Neolithic pottery. Period 10 (Undated) 5.158 A group of three small pits (8.03.004, 8.03.006, 8.03.008) lay in the north-east of plot 8.03. Site FTC 10.01 (NGR SX 7730 6441; Figs 11, 48 & 49) 5.159 The site lies at approximately 35m AOD, situated on gently undulating land some 2.1km north-west of Staverton and just west of Abham. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shillet beds with clay silt lenses. 48 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.160 The site lies on the western margin of what appeared to be a double-ditched enclosure identified from cropmarks (CA 2005, Site 31). Geophysical survey in 2001 had failed to identify the enclosure but found several other linear anomalies (Fig. 48; Stratascan 2001). Some of these were tested by trial trench evaluation of the pipeline route, but nothing of significance was identified. Period 10 (Undated) 5.161 At the northern end of the site was north-west/south-east orientated ditch 10.01.004. Pit 10.01.006 and posthole 10.01.009 were located in the southern part of the site. Site FTC 12.05 (NGR SX 7682 6351; Figs 11 & 50) 5.162 The site lies at approximately 29m AOD, situated on gently sloping land at the base of the south-east facing slope of Hood Ball, east of Hood Barton The site is located off the route of the pipeline in an area used as a ‘pipe dump’. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of a light silt matrix with abundant stone. Period 10 (Undated) 5.163 Located in the centre of the site was a group of seven pits; 12.05.004, 12.05.009, 12.05.011, 12.05.013, 12.05.017, 12.05.019 and 12.05.024, which measured between 0.3m and 0.6m in width, with depths of between 0.12m and 0.38m. The respective fills of which contained burnt material, including cereal grains and mixed wood charcoal. They were initially thought to be cremation pits, but the soil samples yielded no bone and their date and purpose remain unresolved. Site FTC 12.05w (NGR SX 7642 6330; Figs 11 & 50) 5.164 The site lies at approximately 52m AOD, situated on gently sloping land at the base of the south facing slope of Hood Ball near Velwell. The site is located off the route of the pipeline in an area used as a ‘pipe dump’. The underlying geology is mapped as Slate of the Upper Devonian era (BGS 1974). Fieldwork showed that this consisted of shale. Period 10 (Undated) 5.165 Located at the western end of the site were shallow pits/bowl furnaces 12.05w.004 and 12.05w.005, which measured 0.3m in diameter with scorching of the surrounding natural indicative of in-situ burning . The fills contained burnt material, including wood 49 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology charcoal and iron slag which may indicate their use as smelting furnaces, although there was no indication of furnace linings. Site FTC 13.03 (NGR SX 7709 6284; Figs 11 & 51) 5.166 The site lies on a north facing slope between 100m AOD in the south of the site to 70m AOD in the north just south of Hood Quarry (disused), some 0.9km north-east of the hamlet of Westcombe. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of a sandy clay matrix with layers of shale/mudstone. Period 04 (Iron Age) 5.167 Located in the southern part of the site was east/west orientated ditch 13.03.004, which measured 5m wide and 1.85m deep with a u-shaped asymmetrical profile. The feature was identified through aerial photography and may indicate a substantial enclosure, although no return feature was identified either through aerial photography, geophysical survey or during the current investigation (CA 2005b). The fill (09.05 in evaluation trench 9) contained one sherd of probable Iron Age pottery and two pieces of worked flint. The soil samples yielded very little except fragmented charcoal. Period 05 (Romano-British) 5.168 At the centre of the site was east/west orientated ditch 13.03.011, which measured 2.36m wide and 1.25m deep. The fill 13.03.014 contained a single tiny sherd of Roman ?Black-burnished ware pottery. It is possible that, despite the apparent differences in date, ditches 13.03.011 and 13.03.004 form two sides of a later prehistoric/Roman enclosure about 40m across. Period 08 (Post-medieval) 5.169 Cutting the Roman ditch was a series of north-east/south-west orientated ditches 13.03.005, 13.03.010 and 13.03.026. Ditch 13.03.026, which measured 3.80m wide and 0.25m deep contained one sherd of post-medieval pottery within single fill 13.03.032. No dating evidence was recovered from ditches 13.03.005 and 13.03.010 but they follow the same alignment as ditch 13.03.026 precisely and are considered to be contemporary. All these ditches correspond with anomalies seen from geophysical survey. Period 9 (Modern) 50 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.170 North-east/south-west orientated field drain 13.03.025 cuts through ditch 13.03.026. 5.171 The features described above corresponded to anomalies depicted on the geophysical survey, including the remains of a field division (13.03.005, 13.03.010 and 13.03.026) and an enclosure/boundary ditch (13.03.004). Fieldwalking in 2001 yielded a relatively large quantity of material from this plot, particularly medieval pottery (19 sherds) and also a sherd of possible Iron Age pottery (CA 2001). Site FTC 14.01 (NGR SX 7712 6253; Figs 11, 52 & 53) 5.172 The site lies between 103m AOD in the north and 65m AOD in the south on a south facing slope just west of Billany Farm some 0.8km north-east of Westcombe. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of soft shale bedrock with silty lenses. 5.173 The site of an enclosure had been known from cropmarks (CA 2005b, Site 37) and was confirmed by geophysical survey and trial trenching (Stratascan 2001; Archaeological Surveys 2006c). Period 05 (Roman) 5.174 Located in the northern area of the site was north-east/south-west orientated ditch 14.01.105, which measured 3.5m wide and 1.45m deep. The secondary fill, 14.01.033, contained two sherds of Roman pottery, and the uppermost fill, 14.01.063, another two sherds. With ditch 14.01.106 to the south, this ditch forms part of an enclosure measuring 45m north/south by about 60m east/west. Ditch 14.01.106 measured 2.9m wide and 2.35m deep and contained one sherd of mid 1st to 2nd-century pottery within primary fill 14.01.099, one sherd of Roman pottery within third fill 14.01.066 and 30 sherds within sixth fill 14.01.061. 5.175 Within the enclosure were pits 14.01.004, 14.01.034, 14.01.038, 14.01.081 and postholes 14.01.036 and 14.01.087. Pit 14.01.034 (fill 14.01.035) contained six sherds of late 1st to 2nd-century pottery, pit 14.01.038 contained 12 sherds of late 2nd to 4th-century pottery in secondary fills 14.01.039/14.01.80. Fill, 14.01.082 of pit 14.01.081, contained 26 sherds of Roman pottery, probable hearth/furnace lining and a large fragment of quernstone of Cornish Greisen. Pit 14.01.004 (fill 14.01.008) 51 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology contained 29 sherds of Roman pottery. Pit 14.01.048 is considered potentially Roman based on spatial association. 5.176 In the centre of the site was a terrace, 14.01.107, with a sequence of fills 14.01.046, 14.01.047, 14.01.077, 14.01.084 and 14.01.092, which contained abundant, predominantly late, Roman pottery and some ironworking slag. Period 08 (Post-medieval) 5.177 In the centre of the site was north-east/south-west orientated ditch 14.01.108. Fill, 14.01.074 contained two sherds of post-medieval pottery, 25 iron objects and 55 pieces of charcoal, and fill 14.01.011 contained four sherds of modern pottery. The ditch corresponds with a former field boundary identified by aerial photography. Period 10 (Undated) 5.178 Located in the north of the site outside the enclosure were pits 14.01.014, 14.01.100 and 14.01.102. Site FTC 15.01 (NGR SX 7719 6230; Figs 11& 54) 5.179 The site lies at approximately 45m AOD, situated on flat land west of Dartington and some 0.9km east of the hamlet of Westcombe. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellow-brown clay with outcropping shale. Period 10 (Undated) 5.180 Located in the northern part of the site was north-east/south-west orientated ditch 15.01.006. Located in the centre of the site was north/south orientated ditch 15.01.004, which shallowed and appeared to terminate where cut by a field drain. Site FTC 15.02 (NGR SX 7722 6189; Figs 11 & 54) 5.181 The site lies at approximately 40m AOD, situated on the gently undulating valley of Bidwell Brook, which runs south of the site, and north-west of Dun Cross. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellow-brown clay with outcropping shale. Period 10 (Undated) 52 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.182 Located in the southern part of the site were parallel north-west/south-east orientated ditches 15.02.004 and 15.02.006. Although undated artefactually, they may be postmedieval in date being about 1.5m apart and probably originally flanking an earthen bank along a curving medieval plough strip. Site FTC 16.01 (NGR SX 7725 6159; Figs 11 & 54) 5.183 The site lies at approximately 42m AOD, on flat land immediately south-west of Dun Cross. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shillet. Period 10 (Undated) 5.184 Located in the centre of the site was a group of pits and burnt areas. Pit 16.01.007 and areas of burning, 16.01.006 and 16.01.005, were between 0.6m and 1m in diameter with depths of 70-90mm, while pits 16.01.004 and 16.01.009 were 2.5m and 3m in length and 20mm and 0.4m in depth respectively. Fragments of possible smithing hearth bottom came from 16.01.005. They tended to have charcoal-rich fills (predominantly oak) and would seem to have been fire-pits or hearths used for metal working. Site FTC 16.07 (NGR SX 7661 6097; Figs 11 & 55) 5.185 The site lies between 53m AOD (east) and 60m AOD (west) on a flat spur of land some 0.9km east of the village of Tigley. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellow-brown clay with shale fragments. 5.186 The site consisted of clay-lined furnaces with abundant iron slag, and a number of other pits. No material dating evidence was present, although a radiocarbon determination on charcoal from furnace 16.07.008 returned a date in the general range 391-210 cal BC, and the complex therefore appears likely to be Iron Age. Period 04 (Iron Age) 5.187 In the south-western part of the site were bowl furnace 16.07.008, postholes 16.07.004, 16.07.019, 16.07.063, and areas of burning 16.07.009 and 16.07.013. Furnace 16.07.008 yielded ironworking residues, including smelting slag and hammerscale. Alder charcoal from upper fill 16.07.016 returned a radiocarbon date in the third/fourth centuries BC. 53 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 09 (Modern) 5.188 North-east/south-west orientated field drain (not numbered) cuts the fills of possible bowl furnaces 16.07.021, 16.07.052, 16.07.053 and 16.07.055. Period 10 (Undated) 5.189 To the west of the Iron Age furnace 16.07.008 were a series of small ditches; 16.07.006 was orientated north-west/south-east, 16.07.076 was orientated east/west, 16.07.075 was orientated north/south. 5.190 At the western end of the site was a group of associated and intercutting features bowl furnaces 16.07.021, 16.07.024, 16.07.077, 16.07.040, 16.07.049, 16.07.052 and 16.07.055; and pits 16.07.017, 16.07.033, 16.07.035 and 16.07.037. The tight group showed at least three phases of furnace construction and use. The earliest features were pit 16.07.035 and furnace16.07.021, their respective fills 16.07.036 and 16.07.022 cut by furnace 16.07.024 (fills 16.07.025, 16.07.026 and 16.07.027). Furnace 16.07.024 was in turn cut by pit 16.07.033 and furnace 16.07.077. Furnace 16.07.055 (fills 16.07.056, 16.07.057 and 16.07.058) was also cut by furnaces 16.07.077 and 16.07.040, the fill 16.07.041 and 16.07.042 of which were in turn cut by elongated pit 16.07.037. Furnace 16.07.077 was one of the more complete furnaces and consisted of clay lining 16.07.044, usage layers 16.07.045 and 16.07.046, and disuse layer 16.07.047. 5.191 Located in the eastern part of the site were north-east/south-west orientated ditches 16.07.069 and 16.07.073. Site FTC 16.08 (NGR SX 7630 6076; Figs 11, 12, 56 & 57) 5.192 The site lies between 67m (west) and 74m AOD (east) on the flat land some 0.6km east of the village of Tigley. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of fine silt clay with frequent shale fragments. Period 10 (Undated) 5.193 Located at the north-eastern end of the site was east/west orientated ditch 16.08.008 which was approximately 5m wide and 0.5m deep. The feature was irregular in plan with an irregular profile. The fill, 16.08.009, comprised naturally silted yellow-grey silty clay. In the north-eastern part of the site were north54 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology west/south-east orientated ditches 16.08.004, 16.08.006, 16.08.015 and 16.08.013. These ditches were parallel or at right-angles to the current field boundaries and may be medieval or later in date. At the centre of the site was ditch terminus 16.08.018 and ditch 16.01.022. Both these features were orientated northwest/south-east. 5.194 Lozenge shaped pit 16.08.020, measured 0.87m in width, 0.48m in depth and 2.56m in length with steep symmetrical sides. The single fill, 16.08.021, yielded significant charred plant remains (sample 299) comprising mixed oats and barley, which may relate to a medieval farming practice. Located in the south-western area of the site was north-east/south-west orientated ditch 16.08.028. Site FTC 18.12/18.13 (NGR SX 7469 5966; Figs 12 & 58) 5.195 The site lies at approximately 115m AOD, situated on an east facing slope south of Harbourne River just north of Moore Farm, and some 1.5km south-west of the village of Tigley. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale beds. The division of the site into two parts reflects modern field divisions. 5.196 The site consisted of a scatter of generally small pits and ditches, some containing Late Neolithic Grooved Ware pottery. Period 02 (Neolithic) 5.197 Located at the centre of the site was pit 18.12.032, which measured 1.1m in length and 0.45m in width, with a depth of 0.18m. The fill, 18.12.033, contained 37 sherds of Grooved Ware pottery in gabbroic fabric. Next to this was pit 18.12.018, which had a diameter of 1m and a depth of 0.25m, and contained 52 sherds of Grooved Ware and three worked flints (fills 18.12.019, 18.12.020, 18.12.021). Nearby was pit 18.12.053 which contained abundant hazelnut shell (fill 18.12.054, sample 310) and is likely to be of a similar date. Curvilinear ditch 18.12.049/18.12.055, measured 0.95m in width and 0.17m in depth with an irregular profile and cut pit 18.12.053. The fill, 18.12.056, comprised compact clay silt contained 44 sherds of Grooved Ware pottery. Period 10 (Undated) 5.198 In the centre of the site were north-west/south-east orientated ditch 18.12.024 and north-east/south-west orientated ditch 18.12.030. It is possible that ditch 18.12.030 55 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology was the same feature as 18.12.049 lying on an arc which would have formed a circular feature c 25m across. 5.199 In the eastern part of the site were north-west/south-east orientated ditches 18.12.006 and 18.12.004, north-west/south-east orientated ditch termini 18.12.051 and 18.12.026, and north/south orientated ditch terminus 18.12.010. 5.200 Pits 18.12.043, 18.12.037, 18.12.008, 18.12.035, 18.12.041, 18.12.022, 18.12.013 and 18.12.015, with ?ditch terminal 18.12.039, lay in the western part of the site. In the central and eastern parts of site 18.13 were pits 18.13.009, 18.13.004, 18.13.011 and 18.13.013 and postholes/small pits 18.13.017 and 18.13.015. Pit 18.13.004 contained frequent wood charcoal and hazelnut shells (samples 305 and 306) and may be prehistoric, as might some of the other pits. Site FTC 18.14 (NGR SX 7448 5961; Figs 12 & 58) 5.201 The site lies at approximately 120m AOD on a south facing slope north-west of Moore Farm and some 1.8km south-west of the village of Tigley. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellow-brown clay silt and shale. Period 10 (Undated) 5.202 At the western end of the site, next to the recently removed hedgebank and ditch, was pit 18.14.004, the fill, 18.14.005, of which was cut by modern field drain 18.14.006. Site FTC 19.05 (NGR SX 7384 5927; Figs 12 & 59) 5.203 The site lies at approximately 122m AOD, situated on a south facing slope some 0.8km north-west of the hamlet of Kerswill. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellow-brown clay silt and shale. Period 10 (Undated) 5.204 Located at the south-western end of the site was north-west/south-east orientated ditch 19.05.004. Site FTC 19.07 (NGR SX 7368 5913; Figs 12 & 59) 56 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.205 The site lies at approximately 118m AOD, situated on a south facing slope some 0.6km north-west of the hamlet of Kerswill. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellow-brown silty clay with occasional shale inclusions. Period 10 (Undated) 5.206 Pit 19.07.004 was located at the centre of the site. While undated, it contained an interesting assemblage of charred remains, including rye, oats and twine (sample 312) and may be medieval. Site FTC 19.08 (NGR SX 7358 5906; Figs 12 & 59) 5.207 The site lies at approximately 113m AOD, situated on a south facing slope some 0.5km north of the hamlet of Kerswill. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellowbrown silt with shale inclusions. Period 10 (Undated) 5.208 Pit 19.08.005 was located at the north-eastern end of the site. Charred remains included gorse and sloe/plum charcoal (sample 311). Site FTC 20.02 (NGR SX 7326 5877; Figs 12 & 60) 5.209 The site lies at approximately 115m AOD, situated on a south facing slope some, 0.4km north-west of the hamlet of Kerswill. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of orange-brown silt with stone fragments. Period 10 (Undated) 5.210 Located at the centre of the site was north-east/south-west orientated ditch 20.02.004. Site FTC 21.02 (NGR SX 7264 5805; Figs 12 & 60) 5.211 The site lies at approximately 154m AOD, situated on a steep south facing slope some 0.9km east of the hamlet of Beneknowle. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale beds. Period 10 (Undated) 57 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.212 © Cotswold Archaeology Located at the southern end of the site was a series of three parallel east/west orientated ditches, 21.02.004, 21.02.006 and 21.02.008. At the centre of the site the remains of dry stone wall 21.02.012 were cut through by modern trackway 21.02.013. These would appear to relate to recently removed field divisions. Site FTC 21.06 (NGR SX 7215 5769; Figs 13 & 61) 5.213 The site lies at approximately 123m AOD, situated on gently sloping ground some 0.3km east of the hamlet of Beneknowle. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of yellow-brown silty clay with shale fragments. Period 3 (Bronze Age) 5.214 At the north-western end of the site was part of a possible sunken floored building 21.06.008. This feature was only partially exposed, but appeared to have a possible entrance to the south-east with an unknown north-west/south-east dimension and a width of 4.5m and a depth of 0.5m. A radiocarbon measurement on a charred barley grain (sample 313) yielded a date of 1385 cal BC – 1194 cal BC. Although artefacts were absent, the charred remains from this feature include possible animal dung and appear to be of great significance because of the rarity of this kind of evidence in this period. Period 10 (Undated) 5.215 In the centre of the site was north-west/south-east orientated ditch 21.06.004 and at the western end of the site was north/south orientated ditch 21.06.006. Site FTC 24.02/24.03/24.04 (NGR SX 7011 5745; Figs 13, 62 & 63) 5.216 The site lies at approximately 140m AOD, situated just off the crest of a hill, on a south facing slope some 0.6km north-east of the hamlet of Langford Barton. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale with occasional silt lenses. The division of the site into three parts reflects modern field divisions. The route of the pipeline was altered through sites 24.02 and 24.03 to avoid the southern edge of an extant bowl barrow of probable Bronze Age date (SAM no.33756). 5.217 Most of the archaeological remains appear to relate to an extensive, although illdefined Romano-British settlement. Period 3 (Bronze Age) 58 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.218 © Cotswold Archaeology Pit 24.03.060, which measured 0.78m in width and 0.14m in depth, lay immediately south of the barrow on the north-eastern side of site 24.03. The primary fill, 24.03.061, contained 40 sherds of All Over Cord (AOC) decorated Beaker pottery, the secondary fill (24.03.062) contained eight sherds and the upper fill (24.03.063) 13 sherds, all from the same vessel. It is likely that only some sherds from the vessel had been buried, a frequent practice in Devon (Quinnell 2003) Period 5 (Romano-British) 5.219 In the centre of site 24.03 was curvilinear ditch 24.03.152, interpreted as part of a possible house ring-gully, which measured 0.5m in width and less than 0.10m in depth, the single fill (24.03.057) of which contained one sherd of Roman pottery. Also located in the centre of the site were post holes 24.03.068, 24.03.066, 24.03.064, which measured between 0.2m and 0.4m in diameter with depths of 90mm, 40mm and 0.17m respectively, and pits 24.03.036, 24.03.034 and 24.03.091 which measured between 0.6m and 1m in diameter with depths of between 0.17m and 0.22m. No dating evidence was recovered from these latter pits which have been assigned to the Roman period based on their proximity to dated features. Pit 24.03.036 contained substantial well-preserved charred plant remains indicative of crop processing waste (samples 007-010 and 013-016). A stone slab surface, 24.03.095, at the centre of the site contained three sherds of late 3rd to 4th-century AD pottery. It was interpreted as a possible metalworking surface, although there were no metalworking residues from this feature. Nearby, pit 24.03.089 contained iron smelting slag and a glass bead within charcoal-rich fill 24.03.090. This feature measured 0.67m in diameter and 0.11m in depth and was only partially revealed, as the full extent continued beyond the site limits. 5.220 Also near the centre of site 24.03 was curvilinear ditch 24.03.149 which measured 0.5m in width and 0.30m in depth and was interpreted as part of a house ring-gully. The single fill, 24.03.110, contained one sherd of Roman pottery. The ditch enclosed ten postholes (group number 24.03.150) which had an average diameter of 0.3m and depths of between 0.1m and 0.3m. No dating evidence was recovered from these features but they are likely to have formed a structure encircled by the gully. 5.221 At the western end of site 24.03 was pit 24.03.024, the fill of which (24.03.025) contained 11 sherds of middle 3rd to 4th-century pottery as well as slag, vitrified hearth lining and an iron blade or strip. To the east of this was pit 24.03.041, which measured 1.28m in width and 0.29m in depth. Its secondary fill (24.03.071) 59 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology contained one sherd of Roman pottery, and the third fill (24.03.042) six sherds. The pit contained ironworking residues, including hearth/furnace lining, smelting slag (fayalitic run slag) and hammerscale. 5.222 Also within the western area of the site was a substantial curvilinear enclosure ditch 24.03.153, 2.6m wide and 2m deep, containing a large quantity of predominantly late Roman pottery and two fragments of a stone (granite) mould for a pewter dish. This ditch (24.03.153/24.04.004) corresponds with the outer ditch of a doubleditched enclosure depicted by the geophysical survey. Period 10 (Undated) 5.223 Located in the east of the site within field 24.02 were 16 pits or postholes; 24.02.004, 24.02.006, 24.02.008, 24.02.014, 24.02.010, 24.02.042, 24.02.012, 24.02.022, 24.02.040, 24.02.020, 24.02.016, 24.02.034, 24.02.018, 24.02.032, 24.02.038 and 24.02.036 (Fig. 60). 5.224 In the centre of this field was a pair of parallel ditches 24.02.024 and 24.02.030 orientated north-west/south-east and possibly forming part of a track way, joining an existing track at Baron’s Hill, c. 0.2km to the south-east and an unnamed track, c. 0.5km to the north-west. Located on the boundary between site 24.02 and 24.03 were north-west/south-east orientated ditches 24.02.049, 24.03.008 (ni) and 24.03.010 (ni) which formed part of the boundary of the current field system along with a hedge bank (partially removed during current works). 5.225 Pits 24.03.093, 24.03.053 and 24.03.004 were located at the eastern end of site 24.03 in the vicinity of the Beaker pit. There is no indication that these were prehistoric, and the recovery of ironworking slag from pit 24.03.093 indicates it is likely to be Roman or later. 5.226 In the western part of site 24.03 were gully 24.03.028, postholes 24.03.030, 24.03.032, pit 24.03.026 and stake holes 24.03.048 and 24.03.046. While undated these appear most likely to be Roman. Site FTC 24.05 (NGR SX 6983 5736; Figs 13 & 63) 5.227 The site lies at approximately 144m AOD on gently sloping land some 0.5km north of the hamlet of Langford Barton. The underlying geology is mapped as Slate of the 60 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of orangebrown silty clay with shale fragments. Period 4 (Iron Age) 5.228 At the centre of the site was pit 24.05.004, which measured 0.90m in diameter and 0.26m in depth. The single fill, 24.05.005, contained two sherds of probable Iron Age pottery. Site FTC 26.01 (NGR SX 6829 5685; Figs 13 & 64) 5.229 The site lies at approximately 53m AOD on gently sloping land at the base of a south facing slope near Hookmoor Cross, some 1.2km north-east of Ugborough. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale beds. Period 8 (Post-medieval) 5.230 Located at the centre of the site was north-west/south-east orientated ditch 26.01.010, which measured 1.10m in width and 0.33m in depth. The fill, 26.01.005, contained 41 sherds of post-medieval pottery. Period 10 (Undated) 5.231 Located in the centre of the site were curvilinear ditch terminus 26.01.014, which measured 2.5m in width and 0.20m in depth and pit 26.01.012. In the western part of the site was pit 26.01.021 and north-east/south-west orientated ditch 26.01.016. Site FTC 28.01 (NGR SX 6747 5647; Figs 14 & 64) 5.232 The site lies at approximately 154m AOD on the side of a north-facing hill near Hillhead Cross, some 0.7km north-west of Ugborough. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale with silt lenses. Period 10 (Undated) 5.233 Located at the centre of the site were pits 28.01.004 and 28.01.006. Also at the centre of the site was north-west/south-east orientated ditch 28.01.008. Site FTC 30.02 (NGR SX 6710 5606; Figs 14 & 65) 5.234 The site lies at approximately 155m AOD on relatively flat ground at the summit of a hill some 0.7km north-west of Ugborough. The underlying geology is mapped as 61 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of red-brown silt with shale inclusions. Period 10 (Undated) 5.235 Located at the eastern end of the site were pit/ditch terminus 30.02.004 and pit 30.02.006. Located at the western end of the site was north-west/south-east orientated ditch 30.02.009. Site FTC 30.03 (NGR SX 6700 5598; Figs 14 & 65) 5.236 The site lies at approximately 153m AOD on relatively flat ground at the top of a hill some 0.75km north-west of Ugborough. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale. Period 8 (Post-medieval) 5.237 At the western end of the site was north-west/south-east orientated ditch 30.03.005, which measured 0.97m in width and 0.22m in depth. The fill, 30.03.006, contained four sherds of 17th to 18th-century pottery. This feature follows the same alignment as existing field boundaries. Located to the east was a spread of modern material, 30.03.007. Site FTC 31.01 (NGR SX 6683 5582; Figs 14 & 65) 5.238 The site lies at approximately 145m AOD on a west-facing slope some 0.9km west of Ugborough. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale with silt lenses. Period 10 (Undated) 5.239 Located at the north-eastern boundary of the site was pit 31.01.006, the fill (31.01.007) of which was cut by pit 31.01.004. Site FTC 31.02 (NGR SX 6664 5565; Figs 14 & 66) 5.240 The site lies at approximately 140m AOD, situated on a west facing slope south-east of Wood Farm, some 1km west of Ugborough. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale with silt lenses. Period 10 (Undated) 62 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 5.241 © Cotswold Archaeology Located at the south-western end of the site was north-west/south-east orientated ditch 31.02.008. This feature corresponds with the line of the existing field boundary. North-west/south-east orientated ditch 31.02.004 corresponds with the line of an existing field boundary. Site FTC 31.05 (NGR SX 6634 5548; Figs 14 & 66) 5.242 The site lies at approximately 124m AOD on a west facing slope some 1.4km southwest of Ugborough. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale with clay silt lenses. Period 10 (Undated) 5.243 At the south-western end of the site was a north-west/south-east orientated ditch 31.05.004. No dating evidence was recovered from this feature, which was located immediately north-east of the existing field boundary. It corresponded to a feature depicted on the geophysical survey which runs north-west into Plot 31.06 and therefore does not appear to be modern. Site FTC 31.06/31.07/31.08 (NGR SX 6620 5543; Figs 14 & 67) 5.244 The site lies between 103m AOD in the west and 115m AOD in the east on a westfacing slope some 1.6 km south-west of the town of Ugborough. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale with clay lenses. The division of the site into three parts reflects modern field divisions. Period 10 (Undated) 5.245 At the centre of site 31.06 were pit 31.06.004 and ditch terminus 31.06.006. Located in the north-eastern part of site 31.07 was north-east/south-west orientated ditch 31.07.004. This group of features appears to correspond to indistinct geophysical anomalies at the boundary of these two plots (Archaeological Surveys 2005/6, fig. 40). At the eastern end of site 31.08 was north-west/south-east orientated ditch 31.08.004. Site FTC 33.01 (NGR SX 6522 5535; Figs 14 & 68) 5.246 The site lies at approximately 66m AOD on flat land south-east of Filham House some 1.5km south-east of Ivybridge. The underlying geology is mapped as Slate of 63 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 10 (Undated) 5.247 Located at the centre of the site were pit 33.01.006 and north-west/south-east orientated ditch 33.01.004. The fills (33.01.007 and 33.01.008) of pit 33.01.006 contained frequent wood charcoal and charred hazelnut shells (samples 316 and 317), and 33 pieces of worked flint, which suggest an earlier prehistoric date. 5.248 Ditch 33.01.004 corresponded to an anomaly depicted by the geophysical survey and may be a post-medieval field division. It was recorded as cutting the subsoil. Site FTC 33.02 (NGR SX 6499 5522; Figs 14 & 68) 5.249 The site lies at approximately 53m AOD on flat land to the south Filham House some 1.3km south-east of Ivybridge. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 04 (Iron Age/Late prehistoric) 5.250 In the eastern part of the site were deliberately placed deposits of clay 33.02.006 and 33.02.007. The former was dated to the Iron Age by two sherds of pottery, but soil samples (318 and 319) yielded sparse remains of charred plant remains and charcoal. Associated with these features were a group of post-/stakeholes 33.02.008, 33.02.009, 33.02.010, 33.02.011, 33.02.013, 33.02.014 and 33.02.015. The group of features were interpreted as a possible hearth/oven with associated superstructure. 5.251 No dating evidence was recovered from the stakeholes, but they were attributed to the late prehistoric period by proximity. Period 10 (Undated) 5.252 Near the stakehole group were intercutting ditches 33.02.018 and 33.02.016, located immediately west and north-west of potentially Iron Age features. The former was orientated north-east/south-west and the latter was orientated north-west/southeast. The relationship between these features was not investigated. To the northeast, feature 33.02.004 was a shallow undated pit without finds. 64 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site FTC 33.03 (NGR SX 6480 5520; Fig. 14) 5.253 This site lies south of Filham House on flat land between Sites 33.02 and 33.04. No archaeological features were present but superficial deposits yielded the largest collection of flint from any of the sites in this section of the pipeline route (63 pieces). They would appear to represent a mixed background scatter, including a few possible Mesolithic or Early Neolithic pieces, but mostly of later date (probably Bronze Age). Site FTC 33.04 (NGR SX 6460 5517; Figs 14 & 69) 5.254 The site lies at approximately 43m AOD on flat land to the south-west of Filham House, some 1km south-east of Ivybridge. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). ). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 10 (Undated) 5.255 In the eastern part of the site were parallel north-west/south-east orientated ditches 33.04.022 and 33.04.011, which measured 4m and 3m in width and 0.63m and 0.48m in depth respectively. Located in the western part of the site were parallel north-east/south-west orientated ditches 33.04.004 and 33.04.006 which measured 1.95m and 1.40m in width and 0.42m and 0.40m in depth respectively. Both these groups may be paired field boundary ditches flanking a former earthen bank. Site FTC 33.05/33.06/33.07 (NGR SX 6420 5513; Figs 14, 69 & 70) 5.256 The site lies at approximately 40m AOD on relatively flat land some 0.7m south-east of the town of Ivybridge. The underlying geology is mapped as River Gravel and Head deposits of the Pleistocene era (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. The division of the site into three parts reflect modern field divisions. Period 10 (Undated) 5.257 In the eastern part of Site 33.05 was north/south orientated ditch 33.05.008. In the eastern part of Site 33.06 was east/ west orientated ditch 33.06.004. 5.258 Located in the south-western part of Site 33.07 was north-east/south-west orientated ditch 33.07.004. This ditch was aligned with existing field boundaries and appears likely to be post-medieval. Site FTC 34.02 (NGR SX 6393 5497; Figs 14 & 70) 65 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 5.259 The site lies at approximately 36m AOD on relatively flat land in the River Erme valley some 0.7km south of Ivybridge. The underlying geology is mapped as River Gravel and Head deposits of the Pleistocene era (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 10 (Undated) 5.260 Located at the south-eastern end of the site was pit 34.02.100. Site FTC 34.08 (NGR SX 6331 5452; Figs 14 & 70) 5.261 The site lies at approximately 88m AOD, situated on an east facing slope near East Worthele, some 1.1km south of Ivybridge. The underlying geology is mapped as Igneous Shalstein Tuffs (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 10 (Undated) 5.262 Located in the south-western part of the site was north-west/south-east orientated ditch 34.08.004. Site FTC 35.01 (NGR SX 6239 5429; Figs 15 & 71) 5.263 The site lies at approximately 129m AOD on gently sloping ground east of West Worthele (the site of a medieval manor), some 2km south-west of Ivybridge. The underlying geology is mapped as Igneous Shalstein Tuffs (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 10 (Undated) 5.264 Located in the western part of the site was north-east/south-west orientated ditch 35.01.004, which measured 1.30m wide and 0.76m deep. Site FTC 37.04 (NGR SX 6178 5408; Figs 15 & 71) 5.265 The site lies at approximately 142m AOD on a north facing slope 400m south-west of West Worthele, some 2.5km south-west of Ivybridge. The underlying geology is mapped as Igneous Shalstein Tuffs (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 10 (Undated) 5.266 Located in the centre of the site was north-west/south-east orientated ditch 37.04.004. 66 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site FTC 37.06 (NGR SX 6146 5407; Figs 15 & 71) 5.267 The site lies at approximately 135m AOD on a north-facing slope just south of Fursdon, some 2.5km south-west of Ivybridge. The underlying geology is mapped as Igneous Shalstein Tuffs (BGS 1974). Fieldwork showed that this consisted of silt with frequent shale fragments. Period 10 (Undated) 5.268 Located in the eastern part of the site was north-west/south-east orientated ditch 37.06.004. Located in the western part of the site was north-west/south-east orientated ditch 37.06.006. Both run parallel to the existing east and west field boundaries and may be medieval or later subdivisions of this field. Site FTC 38.02 (NGR SX 6120 5412; Figs 15 & 72) 5.269 The site lies at approximately 130m AOD on a north-facing slope south of Fursdon, some 2.5km south-east of Choakford. The underlying geology is mapped as Igneous Shalstein Tuffs (BGS 1974). Fieldwork showed that this consisted of shale beds. Period 10 (Undated) 5.270 Located in the south-eastern part of the site was north-east/south-west orientated pit/ditch terminus 38.02.042. Site FTC 39.03 (NGR SX 6041 5412; Figs 15 & 72) 5.271 The site lies at approximately 86m AOD on a west-facing slope of the Yealm Valley, the river running approximately 0.6km to the west. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale beds. Period 10 (Undated) 5.272 Located at the eastern end of the site was pit 39.03.004. Site FTC 40.01 (NGR SX 6002 5412; Figs 15 & 73) 5.273 The site lies at approximately 50m AOD on a west-facing slope of the Yealm Valley above its confluence a stream called with Brook Lake about 0.4km south-east of Choakford. The underlying geology is mapped as Slate of the Middle Devonian era (BGS 1974). Fieldwork showed that this consisted of shale beds. 67 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 10 (Undated) 5.274 A north-west/south-east orientated ditch 40.01.004, about 1.3m wide, ran for about 70m along the pipe trench. 68 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 6. STRATIGRAPHIC, ARTEFACTUAL AND BIOLOGICAL RECORDS Stratigraphic Record: factual data 6.1 Following the completion of the excavations an ordered, indexed, and internally consistent site archive was compiled in accordance with specifications presented in the Management of Archaeological Projects (EH 1991). A database of all contextual and artefactual evidence and site matrices (for the principal sites) were also compiled and cross-referenced to spot-dating. The excavations and evaluations comprise the following field records: 6.2 OTA ATK FTC TOTAL Context Record Sheets 425 555 1032 2012 Trench Recording Sheets 21 56 30 107 Field Recording Sheets 18 16 57 91 Field Boundary Sheets 21 30 95 146 Plans 101 185 174 460 Sections 121 144 292 557 Monochrome Photographs 142 252 600 994 Colour Slides 196 356 604 1156 Digital Photographs 94 123 135 352 A total of 1968 individual contexts were recorded and have been assigned the following provisional dates: 69 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design OTA 06 ATK06 FTC 06 Phase Period Ex Eval WB Ex Eval WB Ex Eval WB Total 0 Natural 0 0 0 0 0 0 0 0 0 0 1 Mesolithic 0 0 0 0 0 0 0 0 0 0 2 Neolithic 0 0 2 0 0 0 0 0 21 23 3 Bronze 12 2 9 2 0 18 5 0 0 48 Age 4 Iron Age 11 2 3 2 6 0 25 2 13 64 5 Roman 55 4 0 0 0 0 173 4 23 259 6 Saxon 0 0 0 0 0 0 0 0 0 0 7 Medieval 0 2 8 145 0 0 0 0 0 155 8 Post- 22 5 5 52 45 0 15 0 15 159 medieval 9 Modern* 0 2 0 0 0 0 3 0 1 6 10 Undated 108 33 117 67 54 158 134 33 550 1254 208 50 144 268 105 176 355 39 623 1968 Totals * excluding overburden Artefactual record: factual data 6.3 All finds collected during the excavation have been cleaned, marked, quantified and catalogued by context. All metalwork has been x-rayed and stabilised where appropriate. 6.4 A quantification of finds is presented in the following table and summary assessments of the finds by category in the text below. The detailed assessments of all the artefactual finds are contained in Appendices 1 – 11. Type Worked flint Pottery Brick/tile Fired Clay Clay tobacco pipe Coins/tokens Metals Glass Metallurg. residues Stone Category all Prehistoric Roman Medieval and later total all all all Cu. al. Iron Copper alloy Lead Vessel/window Object (bead) all Worked/utilised 70 Count 638 436 554 2781 3771 201 265 22 3 220 4 13 62 4 64 Weight (kg) 5635 4.981 4.914 20.071 29.966 26.094 0.734 118 474 21.949 - SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Worked flint (Appendix 1) 6.5 Worked flint or chert and a small quantity of heat-affected flint were recovered from each of the three sections of the pipeline, with the largest quantities from the FTC section. Much of the assemblage represents redeposited material recovered from subsoil/topsoil type deposits, or in Roman or later features. Probable stratified groups were however recognised from OTA 03.04, for which Early Neolithic dating is supported by associated pottery and from FTC sites 02.02 and 33.01, which probably date later in the Neolithic (see Appendix 2). Among the remainder of the assemblage, there are indications from diagnostic tool forms or technological traits for dating spanning the Mesolithic to Early/Middle Bronze Age. Pottery (Appendices 2, 3, 4) 6.6 Pottery comprising material of prehistoric, Roman and medieval and later dating, was recovered from each of the pipeline sections (see Appendices 2–4). The prehistoric material (Appendix 2) amounts to 436 sherds (c 5kg). The earliest material encountered consists of Early Neolithic pottery from OTA sites 30.04 (including Trench 206) and 9.02, and possible Middle Neolithic sherds from OTA 2.03. Further (later) Neolithic material, including probable Grooved Ware, was recorded from FTC sites 02.02, 08.02 and 18.12. Beaker pottery was recovered from FTC 24.03 and Middle Bronze Age material (including Trevisker type) from OTA sites 3.04, 4.10 and 5.02; ATK sites 12.13 and 14.09. Late prehistoric pottery (late Bronze Age to Iron Age) was poorly represented as smaller tentatively-scribed sherds from OTA sites 2.06 and 3.04; ATK site 13.02 and FTC sites 7.01 and 13.03 (trench 9 [=109]). 6.7 Roman pottery was also encountered across the pipeline sections (Appendix 3), though was notably better represented from the westernmost, section FTC (4.8kg) with the overwhelming majority of pottery from sites 14.01 and 24.03. Small quantities were noted from OTA 03.04 and ATK sites 0.03 and 13.02. Only the larger groups from FTC sites 14.01 and 24.03 were more closely dateable; these being primarily of the later 3rd to 4th centuries AD. In all instances a narrow range of, primarily locally made coarsewares is represented. 6.8 Pottery of medieval and later date was identified from all sections, although only scarcely from OTA and FTC. Among the earliest material is a small group (9 sherds) from OTA 01.03 which includes tripod pitcher sherds of the mid/late 12th century. By far the largest group is associated with structures located in ATK 13.02 (Appendix 4). Here the majority dates to the period c 1250 to 1350 and comprises mainly cooking 71 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology pot fabrics with a few glazed wares including continental types. Post-medieval material is scattered across the length of the pipeline. The majority comprises coarsewares from South Devon, North Devon and South Somerset dating mainly to the 17th and 18th centuries. Of note are a number of continental imports which are rarely recorded outside of the major towns, including material from southwest and northern France, Germany, Spain and Portugal. Ceramic Building Material (Appendix 5) 6.9 Ceramic building material amounted to 201 fragments of all classes. The large bulk of material relates to Trench 315 (part of ATK 12.01) and comprises un-glazed ‘S’profile pantiles of later post-medieval/modern type. No material relates to section FTC. Of the remainder a small number of brick fragments, probably of late 18th or 19th century date, relate to a brick kiln from OTA 03.07. Fired clay (Appendix 5) 6.10 Quantities of fired clay (265 fragments, weighing 734g) were recovered from each of the pipeline sections. The fired clay is typically very fragmentary; the pieces small and rounded and providing few indications of original form or function. Metal and glass objects (Appendices 8, 9) 6.11 A total of 230 items, mainly of iron, were recovered from all areas. The largest group relates to section FTC, although a sizeable proportion from here consists of unstratified material from topsoil and subsoil deposits and primarily made up of nails and other items of relatively recent dating. Among the more significant metal items recovered are a copper–alloy pin fragment from a Middle Bronze Age deposit (ATK 14.09 Period 4 deposit 4.09.007), an iron knife of probable medieval date with white metal inlay from ATK 13.02/Period 7 pit fill 13.02.162. In addition there are glass beads of Roman type from FTC sites 02.02 and 24.03 and an early post-medieval North Italian glass chevron bead from FTC 16.08. Metallurgical residues (Appendix 10) 6.12 A total of 22kg of bulk metalworking debris together with 7kg of magnetically extracted sieve debris was examined. No significant amounts of metallurgical debris were identified from the Ottery St Mary to Aylesbeare or Aylesbeare to Kenn sections. The Fishacre to Choakford Gas Pipeline (FTC), however, provided a significant amount of metalworking debris, particularly from Site 16.07. This material is not entirely unambiguous, but on balance the majority is thought to confirm the 72 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology excavators’ interpretation for a number of features being iron smelting furnaces, together with further evidence of iron smithing, but no indication of the extraction or working of any other metals. A radiocarbon date places this site in the Iron Age (Appendix 18). Another iron working hearth was identified at Site 12.05W, while metalworking residues were identified at Roman sites 24.03 and 14.01. Vessel and window glass (Appendix 9) 6.13 Small quantities of vessel and window glass were recovered from each of the pipeline sections. Much of the assemblage is unstratified or from subsoil-type deposits. The vessel glass consists for the most part of green bottle glass of postmedieval or modern dating. Among earliest pieces are from wine/spirits bottles with wide-base diameter and high basal ‘kick’ (ATK sites 12.09; 13.02), and a small bottle or phial from FTC 25.01 (subsoil), which probably date to the mid 17th to earlier 18th centuries. A small chip of green window glass from Trench 315 (part of Site 12.01) may also be of earlier post-medieval date and may relate to the cob structure recorded from this location. The remainder of the window glass consists of thin, clear glass of relatively recent age (late 18th to 19th century or later). Clay tobacco pipes (Appendix 6) 6.14 Small quantities of clay pipe fragments were recovered from each of the pipeline sections (Appendix 6). The assemblage comprises mainly stem fragments, few of which are stratified. The few dateable pieces are mainly 19th century moulddecorated forms (OTA Site 3.04 Trench 206/subsoil; ATK Site 13.02 ditch fill 13.02.152). Coins (Appendix 7) 6.15 A total of three Roman coins, all from FTC 14.01 were recovered. The condition of all three is extremely poor and in their current state the coins are not fully identifiable. All however appear to be later Roman radiates, of the mid to late 3rd century AD. Worked and utilised stone (Appendix 11) 6.16 Forty-six pieces of worked and utilised stone together with eighteen unworked but potentially utilised cobbles and pebbles were found during the excavations; one, twenty-one and forty-two pieces from the Ottery St. Mary to Aylesbeare, Aylesbeare to Kenn and Fishacre to Choakford pipelines respectively (Appendix 11). Initial petrological examination indicates that all the material is generally local to the southwest and with origins primarily in south Devon, Dartmoor and Cornwall. Notable 73 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design items include probable rubbing stones of Neolithic date from FTC 2.02, rotary quern fragments of Roman type from FTC 4.01 and part of a stone mould for the production of pewter vessels also of Roman date and from FTC 14.01. Biological record: factual data 6.17 A summary of the biological remains recovered is presented in the table below and summary assessments of individual categories follow. The detailed assessments of the biological data are contained in Appendices 12 – 18. Type Category Count Animal Bone Mollusca Human Bone Samples Hand collected Hand collected Cremation Bulk Environmental Monolith cremation 3121 12 1 274 5 2 Human remains (Appendix 12) 6.18 The cremated remains from Site OTA 4.01 (deposits 205.012 and 205.005, pit 205.004) represent and un-urned cremation burial, probably of an adult woman. The cremated remains weighed 767g, with mainly skull and long bones present, and there was no duplication of skeletal parts suggesting a single individual. The cremation is undated at present but is viable for radiocarbon dating. The majority of the cremated material reached a temperature of >c 600 degrees Celsius, which equates to full oxidization. There were no accompanying artefacts, although identifiable wood charcoal was present which would also be suitable for radiocarbon dating (Appendix 14). Animal Bone (Appendix 13) 6.19 Animal bone was recovered from all three sections of the pipeline route (OTA, FTP and ATK). The assemblage comprised 3121 fragments from 138 bones weighing 2kg. Of these 241 fragments were hand collected whilst 80 fragments were recovered from processed samples. The preponderance of animal bone from later periods and the condition of the bone suggests that the conditions for preservation of bone at these sites were poor. From the Ottery St Mary section animal bone was recovered from three sites; 3.01, 3.04 and 5.01, but it was mostly not identifiable to species. From the Fishacre to Chockford section animal bone was recovered from 74 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design four sites; 18.12, 24.03, 25.01 and 26.01, but only one item was identified to species. The Aylesbeare to Kenn section produced the larger part of the animal bone assemblage - 247 fragments from 91 bones of which 23 were identified to species. These were recovered from two medieval and post-medieval sites, 13.02 and 12.01. The assemblage from Site 13.02 comprised horse, cattle, sheep/goat and frog/toad. While that at Site 12.01 comprised, horse, cattle, rabbit, rabbit/hare and rat. Charcoal (Appendix 14) 6.20 The charcoal from 247 contexts, comprising material from the flots and residues, was submitted for assessment. An additional 17 bags of hand-collected material were also examined. The bulk of the samples came from the Fishacre to Choakford section of the pipeline from features ranging in date from the Neolithic period through to the Romano-British, with a large quantity of, as yet, undated features. The samples from the other two sections of pipeline (OTA and ATK) included material of later date, including medieval and post-medieval features. A similar range of taxa was noted in the samples from all three pipeline sections, including; Alnus/Corylus (alder/hazel), Fraxinus (ash), Maloideae (hawthorn group), Prunus (cherry/blackthorn), Quercus (oak), Salix/Populus (willow/poplar) and Ulex/Cytisus (gorse/broom). A couple of fragments of Acer (maple) type and Betula (birch) type were also noted. The samples from ATK exhibited better preservation of the charcoal, than those from OTA, and the assemblages were more diverse. Alnus/Corylus (alder/hazel) and Quercus (oak) were still frequent, but there was also a large component of Ulex/Cytisus (gorse/broom). Section FTC provided 137 samples of which more than 70 produced assemblages with some potential. A high number of these were dominated by Quercus (oak) or Alnus/Corylus (alder/hazel). Charred Plant Remains (Appendix 15) 6.21 From Ottery St Mary to Aylesbeare (OTA) ten flots were assessed. Charred plant assemblages were present at Site 1.03 Period 7 (12th – 14th century AD), Site 2.03 Period 2 (middle Neolithic) and Site 3.04 where both Period 2 (Early Neolithic) and Period 5 (Romano-British) deposits yielded plant remains. The Roman deposits produced poorly preserved cereal remains including emmer/spelt wheat grains. The Neolithic deposits were more mixed yielding emmer/spelt and some hazelnut shell (HNS). That from Site 2.03 was unusual in that some bread-type wheat was present which would indicate a later date. The medieval Period 7 assemblage from Site 1.03 comprises oats and rye with some weed species. 75 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 6.22 From the Aylesbeare to Kenn (ATK) section 20 flots were assessed. These came from medieval to post-medieval features in Site 13.02 and some Late Bronze Age/Early Iron Age features in Site 14.09. From Site 13.02 the medieval (Period 7) hearth fills produced bread-type wheat, rye and oats. The samples from the SFB yielded frequent oats, rye grains and a range of weed seeds, and some rye chaff was present; cultivated vetch may also be present. Pit 13.02.228 (samples 163 and 164) produced well-preserved, abundant evidence of rye, with some oats, barley, bread-type wheat and a possible large legume such as Celtic bean (Vicia faba var. minor). An early post-medieval (Period 8) pit contained poor, eroded cereal grains. A 16th-18th century pit produced fragments of possible walnut shell (cf. Juglans regia). From site 14.09 pits of Middle Bronze Age date produced bread-type wheat and barley grains in very poor condition. The undated ring ditch 14.09.021, produced an interesting assemblage of crop processing waste, with chaff present in the form of a spelt glume base (Triticum spelta), suggestive of a prehistoric date. 6.23 From the Fishacre to Choakford (FTC) section 141 samples were assessed. Site 02.02 deposits of Neolithic date did not produce cereal grains although they were rich in charred HNS. Other Neolithic pits contained small numbers of poorly preserved grain fragments and small HNS fragments. Site 12.05 samples from currently undated deposits produced small quantity of cereal grains, a fragment of sloe/plum (Prunus sp.) stone and a small HNS fragment. Site 14.01 Roman deposits produced evidence for the extraction of oil from flax and also cereal grains (emmer/spelt and oat), and Celtic bean (Vicia faba var. minor). Site 16.07 included iron smelting furnaces (one of which has been dated to the Iron Age). The charred plant assemblage included black bindweed and emmer/spelt wheat grains. From Site 16.08 undated pit fills produced a mixture of oats and barley typical of medieval mixed crop (dredge). Site 18.12 included pits of Neolithic date which produced HNS and undated deposits likely to be of similar date, as well as undated deposits with typical medieval assemblage composition. Site 18.13 comprised undated deposits dominated by HNS likely to be of Neolithic date. Site 19.07 included possible evidence for livestock fodder. Site 21.06 included samples from a sunken-floored building which comprised charred grain and a wide range of weed seeds which is somewhat at odds with the early radiocarbon date obtained from a barley grain. Site 24.03 yielded material of Roman date. Spelt wheat appears to have been the main cereal grown, with some oats and barley, perhaps suggesting soil impoverishment. Site 33.01 deposits were undated and produced quantities of charred HNS but lack cereal grains. 76 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Mollusca (Appendix 16) 6.24 Hand–collected material totaled 12 fragments weighing 19g. Species identifiable include common oyster (Ostrea edulis), mussel (Mytilus edulis) and periwinkle (Littorina Littorea). Shell fragments were recovered from the residues of six of the processed bulk samples from ATK sites 13.02 and 14.09 and from the flots of sample 105 from site 13.02. The large majority of shells recovered were identifiable as cockle (Cerastoderma edule). In addition to this, a small amount of oyster shell and one land snail, unidentifiable to species, were also recovered. Geoarchaeology and Palynology (Appendix 17) 6.25 Five monolith samples were taken from fills of feature OTA 04.12.004, a large ditch or palaeochannel. The sequence sampled rests on weathered mudstone of the Mercia Mudstone Group, present in the basal 20mm of monolith <220>. The lowest fills of the feature (contexts 04.12.005, 04.12.006, 04.12.010) comprise c 0.30m of thinly bedded and laminated peats, organic muds and mineral silt/clays (Table 17.1). There is a trend in these strata for organic content to decrease upwards and for the mineral deposits to become increasingly dominant. Peat containing recognisable plant macro-remains is only a feature of the basal 0.10m of the sampled feature (context 04.12.005). Twenty-five sub-samples were taken from the monoliths at 40150mm for palynological assessment. The concentration and preservation of pollen varied. In the three sub-samples from the basal peat (context 4.12.05, monolith <220>), the pollen concentration was high and preservation moderate. The main taxa identified included Alnus (alder), Corylus type (e.g. hazel), Poaceae (grass family) and mixed herbs such as Caryophyllaceae (daisy family). In the six samples from overlying organic and mineral silt/clays (context 4.12.06, monoliths <220> and <219>), pollen concentration was generally moderate to high and preservation moderate. The main taxa identified included Alnus, Corylus type, Poaceae, Plantago lanceolata (ribwort plantain) and Polypodium vulgare (polypody). Radiocarbon Dating (Appendix 18) 6.26 Single AMS samples were submitted during the assessment, and additional material is available which will permit the ‘pairing up’ of these dates in the future. From the Fishacre to Chokeford section samples were dated from three deposits: pit 2.02.1010, a possible furnace 16.07.016 and sunken floored building 21.06.008. From the Alyesbeare to Kenn Section two pits from Site 14.09 were sampled, 14.09.003 and 14.09.016. Pit 2.02.1010 from FTC 2.02 was believed to be of Neolithic date based on the finds. The radiocarbon date of 3339-3095 cal BC is 77 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology earlier than date indicated by the pottery from this feature, identified as Grooved Ware (Quinnell, Appendix 2). The possible furnace 16.07.008 at FTC 16.07 has a radiocarbon date range of 391–210 cal BC (Middle Iron Age). The sample from the potential sunken floored building from FTC 21.06 returned a date of 1385-1194 cal BC (Middle Bronze Age). Dates were obtained from two pits from ATK 14.09. Pit 14.09.003 has a date of 1627–1504 cal BC (Early Bronze Age) thus confirming the date suggested by the presence of partial Trevisker vessel of Early to Middle Bronze Age date. Pit 14.09.016 had been described as Late Bronze Age/Early Iron Age as it contained 14 sherds of Middle Bronze Age pottery. The radiocarbon date obtained was 367- 201 cal BC, a Middle rather than Early Iron Age date. 78 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 7. © Cotswold Archaeology SUMMARY STATEMENTS OF POTENTIAL Stratigraphic record 7.1 A secure stratigraphic sequence is essential to elucidating the form, purpose, date, organisation and development of the various phases of activity represented. This can be achieved through detailed analysis of the sequence and further integration of the artefactual and scientific dating evidence. The refined sequence will then serve as the spatial and temporal framework within which other artefactual and biological evidence can be understood. 7.2 Further analysis will be undertaken for contexts provisionally assigned to Periods 2, 3, 4, 5, 7 and undated features (Period 10). In addition post-medieval contexts (Period 8) will be examined where they contribute to an understanding of the sites excavated (cob building ATK 12.01, medieval longhouse ATK 13.02, brick kiln OTA 3.07). 7.3 The large number of presently undated features means that a relatively high proportion of resources will be spent coming to an understanding of features which may not contribute individually to great advances in knowledge, but which appear typical of this transect of land, and warrant explanation where possible. It appears likely that a number of these features are elements of significant archaeological sites which are artefact poor and to some extent ‘invisible’. 7.4 The large majority of sites comprised simple discrete and linear features with deposits surviving only below the surface of the sterile substrate. The stratigraphic potential in most cases therefore relates only to the forms of the individual features and the nature of their fills. Most fall in the generic categories of pits or ditches of various sizes. The potential for interpreting their function and the formation processes involved in their creation is therefore low, although greater in larger features with more complex depositional histories, which might, for instance include several phases of digging and deposition (structured or otherwise) or infilling. One of the valuable aspects of this project lies in the cumulative gain in information from a great deal of essentially poor quality evidence. The range and quality of information may be typical of the county as a whole. 79 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 7.5 © Cotswold Archaeology A small number of sites show greater complexity, particularly in the number of features and range of date, with some features readily interpretable in terms of specific function. Site FTC 16.07: Iron Age iron smelting furnaces 7.6 Of the prehistoric sites this shows more stratigraphic potential than the others, with a sequence of intercutting pits as well as discrete ones. The furnaces, however, are not well preserved, surviving only as cut features without evidence of their original above-ground forms. There is some indication of their below-ground forms and fill sequences which, in conjunction with material remains of residues, will help determine the types of ironworking processes (primary and secondary) being carried out and the level of technology practised. The furnaces appear to have been apart from identifiable settlement or other related features and questions concerning spatial patterning and internal organisation of the industry would seem unanswerable. Site FTC 24.03: Roman settlement with prehistoric pits 7.7 Of the Roman sites this was the most prolific of pottery and a range of other finds, although 78% of the pottery came from a single feature (ditch 24.03.153). There is little stratigraphy or evidence of spatial patterning of features, and no complete plans of structures. The spatial distribution of finds may, however, give some indication of functional zoning. Site FTC 14.01: Roman enclosure 7.8 The site of an enclosure defined by geophysical survey (Fig. 52) had enclosure ditches and a scatter of internal features including hearths, pits and a cut terrace which appears likely to have been a house platform (although without clear structural evidence). Both the ditches and terrace contained stratified deposits, with a fairly large quantity of pottery from the terrace. Site FTC 7.01: Iron Age and Roman settlement 7.9 The site had mostly discrete features and sparse material culture (the pottery amounted to just 27 sherds Roman and 20 sherds Iron Age). There is little potential to examine the sequence or structure of the site. Site OTA 3.04: Roman settlement and prehistoric pits 7.10 The features are for the most part discrete and of different periods, although the intercutting penannular ditch 3.04.045 and ‘boundary ditch’ 3.04.004 indicate a 80 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology chronological depth to the Roman occupation. Dating or other material evidence is sparse (just three sherds of Roman pottery), and there is therefore no opportunity to examine function or spatial patterning associated with the possible roundhouse. Site ATK 13.02: Medieval longhouse and SFB 7.11 Although no features survived above the horizon of modern ploughing, the cut features show sufficient complexity to enable a relatively long stratigraphic sequence to be developed. This includes elements of land division dating to post-medieval times. There is also reasonably abundant dating evidence and further work should be capable of refining the date and nature of activities represented. However, the longlived nature of many of the ceramic types (normally not less than 200 years), and the probability of significant redeposition, make it unclear how precise a sequence will be achievable. The nature and range of features – including hearths, floor surfaces and post-pads – will aid an understanding of the structures themselves. Site ATK 12.01: Post-medieval cob building 7.12 There is the potential to examine post-medieval cob building 12.01.01 in terms of sequence and construction technique. The deposits themselves are relatively easy to interpret (walls, floors etc) and there is some stratigraphy, although not obviously representing more than a single main phase of building. It is unclear whether the limited finds are contextually useful enough to date the construction of the building, or to fine tune any separate phases of use, since most come from deposits associated with the abandonment phase. Artefactual Record Pottery 7.13 Generally the amount of prehistoric pottery found on sites in Devon is small compared to areas further east and north. The potential of this group of material is therefore high, both in terms of its relative quantity and its contextual associations. It is thus important to study the assemblage in detail, aiming at publication which includes even single sherds from individual contexts. There is little comparanda available for the areas transversed by the pipeline, and ongoing research has been able to demonstrate considerable complexities of fabric sourcing (e.g. Quinnell 1999). It is recommended here that examples of each separate fabric with sufficient characteristics to indicate a broad date range be examined with a petrological microscope, with a selection in addition thin-sectioned. Most pottery is present in 81 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology small amounts. All those pieces with distinctive form or decoration whose visual publication would advance future study have been recommended for illustration. All contexts with ceramics with distinctive form have been recommended for radiocarbon determinations if sufficient dating material is available. There are regrettably few such determinations currently available in Devon and the sequence of styles and forms is only known in broad outline. 7.14 Although similarly small, the Roman groups from FTC sites 14.01 and 24.03, warrant publication as relatively rare evidence for patterns of pottery supply and use in the area to the south of Dartmoor. In advance of reporting, additional recording is recommended to include an estimated minimum number of vessels (sherd families) and systematic recording of carbonised or other residues. A full library search for other Roman assemblages in the area should be conducted for the purposes of comparison with the groups from FTC sites 14.01 and 24.03 and representative sample of featured sherds should be drawn. The summary statements provided as part of this assessment will be sufficient for the remaining groups. 7.15 The medieval and post-medieval assemblage also merits selective further analysis. Most significant is the material from the longhouse identified from ATK 13.02. Comparable collections have come from Dartmoor, where several examples of these farmhouses have been excavated, but there are very few comparable assemblages from peasant sites in lowland Devon. The collection from Site 13.02 is surprisingly different from the finds from Exeter, with more variety of fabrics alongside familiar chert-tempered wares from the Blackdown Hills. A full catalogue and report should be produced for this material to be accompanied by approximately one page (25 vessels) of illustrations. It is also recommended that petrological analysis should be undertaken for selected sherds to assist with characterisation of fabrics and possibly to determine source. In addition to the collection from Site 13.02 there are small groups and individual occurrences from other sites which warrant further investigation to include summary reporting. Ceramic Building Material 7.16 The ceramic building material provides some broad indications of dating, in particular in respect to the cob structure identified from ATK 12.01. Similarly the few brick samples recovered from the brick kiln noted from OTA 03.07 are evidence for the ‘products’ and dating of this structure. There is therefore some potential to contribute 82 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology to the interpretation of both these sites. It is recommended that a short report describing the material from these two sites be included in the eventual publication. Fired clay 7.17 The fired clay represents a small and fragmented group for which there is limited interpretive value. The existing records and reporting are considered sufficient for the purposes of the archive and no further work is recommended. Metal and glass (objects) 7.18 A small number of items of interest merit publication, to include catalogue description and illustration. These objects include the knife blade from Site ATK 13.02 and the glass beads from Site ATK 13.02 and FTC sites 02.02, 24.03 and 16.08. Specialist cleaning of two items: the copper-alloy pin fragment from Site ATK 14.09 and the inlaid(?) iron knife blade from Site ATK 13.02, is recommended to clarify form and facilitate accurate drawing. It is recommended that items from topsoil and subsoil deposits be discarded as the recording in this assessment is considered sufficient. A brief descriptive catalogue should be prepared for all other items for the archive. Present packaging should be maintained to reduce the risk of deterioration Metallurgical residues (and associated structures) 7.19 Although smelting had been identified at numerous Iron Age sites, this has generally relied only on finds of slag, not furnaces. The multiple furnace clusters at Site FTC 16.07 are rare examples of early, relatively precisely dated structures. Closer scrutiny of context records and the site photographs might help to clarify the function of individual furnaces. Chemical charaterisation of the types of slag may more securely distinguish smelting and smithing debris, identify the source of ore, and obtain a ‘signature’ which may be useful in provenancing iron artefacts found elsewhere in the country. This aspect of the material is potentially of national importance. 7.20 There is also some potential for chemical characterisation of the residues from the Roman site FTC 24.03 to establish whether there is any evidence for tin, lead or pewter working. Glass 7.21 The small glass assemblage is widely dispersed across the pipeline sections, is commonly from topsoil or subsoil-type horizons and consists for the most part of modern material. For such reasons, recording undertaken as part of this assessment 83 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology is regarded as sufficient for the purposes of the archive, and additional analysis is not recommended. Clay tobacco pipes 7.22 The clay pipe assemblage is fragmentary and contains few diagnostic elements. Further analysis is not recommended. Coins 7.23 The Roman coins from FTC 14.01 are of some, limited significance as dating evidence, helping to refine the dating for this site provided by the pottery. Cleaning by a specialist conservator is recommended in an attempt to fully identify the coins. A coin list, noting what details as can be ascertained from cleaning, or at the least those recorded as part of the assessment, should be included in any publication. Worked and Utilised stone 7.24 Within the overall assemblage, three categories of worked stone – the stone mould, querns and Neolithic rubbing stones – are considered particularly important in terms of their regional and possibly national significance. It is recommended, therefore, that full analysis, leading to the production of a report, be carried out on these artefacts in order to provide details on their origin, manufacture, use and discard, and enable them to be placed in their regional context. The other pieces worked or utilised stones have been catalogued and reported on as part of this assessment and further analysis is not thought to be of merit. Worked Flint 7.25 The lithics assemblage is of some interest as a sample across a region not commonly the subject of archaeological investigation. Of greatest significance are probable stratified groups from OTA 03.04 and FTC sites 02.02 and 33.01. Those relatively small groups merit additional recording to include process-related recording for removals (degree of cortex present), assessment of hammer mode and length/breadth measurement. A report characterising the assemblage and discussing further indications of chronology, aspects of technology and the procurement of raw materials should be prepared for the publication. Data relating to the unstratified groups and the analysed stratified groups should be presented in the final report. A number of tools (up to eleven) including the barbed and tanged arrowhead, should be drawn for the publication. 84 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Biological Record Human Remains 7.26 No further work needs doing on the remains themselves. The cremation includes material suitable for radiocarbon dating. Once the date of the cremation is established its significance within the region can be considered in greater detail. Animal Bone 7.27 The animal bone assemblages from all three sections of the pipeline offer little potential in terms of interpreted past diet and economy due to their small and fragmented nature. No further work on the assemblages is recommend but a brief summary of species identified by site should be included in the publication. Charcoal 7.28 From all three pipeline sections there is high potential for further analysis, though the exact samples to be analysed will need to be selected from those with highest potential when the full dating programme and context analysis have been completed. The potential cremations, the furnaces, and a selection of the pits are to be analysed and a selection of samples from each period or phase are to be examined to provide a dataset for interpretation and comparison over a long timescale, which, on present dating includes features of Neolithic, Bronze Age, later Iron Age, Roman and postconquest Medieval date. The samples offer the opportunity to examine the following issues: the wood selected for the Iron Age furnaces (and potentially those of other dates); how the choice of wood for hearths and general domestic use (crop processing?) varied according to date and function of the sites; how the landscape and/or selection of wood for fuel changed over time, and how these results fit in with comparable sites in the region. In addition, material will be selected and identified purely for assessing its suitability for radiocarbon dating (Table 14.4). Charred Plant Remains 7.29 The large numbers of soil samples examined, with variable but often good quality palaeobotanical remains from several periods, means that overall there is a good potential for examining aspects of diet, farming practice and environment, and changes over time. There is also the potential for dating currently undated sites 85 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology through suitable AMS radiocarbon samples and thereby characterising assemblages lacking other datable material remains. From the OTA section recommendations include; further processing and analysis of samples from sites 1.03 (Period 7), 2.03 (Period 2) and 3.04 (Period 2 and Period 5). From the ATK section recommendations include further processing and analysis of samples from sites 13.02 (predominantly Period 7) 14.09 (mostly Periods 3 and 10). From the FTC section recommendations include Site 2.02 (mostly Period 2), Site 12.05 (currently undated but probably prehistoric) Site 14.01 (Period 5) where evidence of flax oil estraction was noted, Site 16.07 (Period 4 iron smelting), Site 16.08 (currently undated but probably medieval), Site 18.12 (Period 2 and undated), Site 18.13 (currently undated but also potentially Period 2), Site 21.06 (currently with a Period 3 radiocarbon date) and Site 33.01 (currently undated but perhaps prehistoric). A number of useful samples have reserves of sediment to be processed which will be used to augment the material already assessed. Further details of specific samples for further processing can be found in Appendix 15, Table 15.4. Mollusca 7.30 Only small quantities of marine molluscs, both hand-collected and from processed samples, were retrieved. Most of the material has limited potential for further analysis. No further work is recommended except on the large quantity of cockle shell recovered from the midden ATK 13.02.006, which appears to have contributed to the diet of people at this site. Further work will integrate this material into the site analysis and examine comparanda. Geoarchaeology 7.31 It is still unclear whether feature OTA 04.12.004 was a ditch or a palaeochannel. However, given the nature of the deposits filling the cut, the balance of probability is with the latter. All deposits infilling the feature – with the possible exception of the uppermost sands – are the result of natural, mostly alluvial, processes and there is very little indication from either the palynology or sediment morphology for human action. The results of the pollen assessment suggest that the assemblage throughout the entire sequence was relatively similar despite the variations in concentration and preservation. There are a number of samples that have the potential for reconstructing the environmental history of the site and its environs. Therefore, and depending on the results of radicarbon dating of the basal organic deposits and age 86 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology similarity with surrounding archaeological sites, palynological analysis has been recommended of these strata. No further sedimentological work is recommended. Despite the intrinsic potential of the pollen samples, the lack of an absolute chronology and the low potential for obtaining one (with the exception of dating the basal fill), means they have limited archaeological or palaeoenvironmental value. There would seem no likelihood of extrapolating the palynological information to nearby archaeological sites, or establishing an absolute date for changes in vegetation identified. Radiocarbon Dating 7.32 The five dates obtained thus far require second dates to create paired dates as is recommended for small items of charcoal and charred plant material. Further features requiring dating from the OTA section include; the cremation from 4.01 has been identified as that of an adult woman; Pit OTA 02.03.004 contains Peterborough Ware, but the charred plant assemblage is more characteristic of a later prehistoric date, and this ambiguity needs resolving. The ring-ditch feature at Site 5.01 is assumed to be Bronze Age but is as yet undated, paired dates from primary fills are recommended. At Site 14.12, the basal peat-rich deposits of the monolith sequence are potentially dateable, but the lack of suitable material from the upper sandy deposits means that the upper end of the pollen sequence cannot be tied in and the proposed radiocarbon dating cannot be justified (Appendix 17). 7.33 From the ATK section features requiring radiocarbon dating options include; from Site 13.02 two ditches of potential Bronze Age/Iron Age; the pits from Site 14.09 requiring second AMS samples to create pairs; and the potential ring-ditch at Site 15.02. 7.34 From the FTC section a greater number of features are recommended for radiocarbon dating. Pit 2.02.010 requires a second to support the current single date. Pits from Site 12.05, identified on site as cremations but which yielded only charcoal and no human bone, require dating. Paired dates are recommended for the possible iron smelting furnace at Site 12.05w. A second date for the furnace from Site 16.07 is needed, along with dates from some of the other furnaces. A number of pits from Site 18.12 contain Grooved Ware and confirmation of their date is required. Two pits from Site 18.13 require dates to confirm suggestion that they are Neolithic based on 87 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology the composition of the charred plant assemblage. Sites 19.07 and 19.08 both include pits with well preserved charred plant or charcoal, radiocarbon dates for these are recommended. For the SFB at Site 21.06 a second date is required to confirm the unexpectedly early initial date. Pit 24.03.036 has a significant charred plant assemblage, and the presumed Roman date requires confirmation. Pit 33.01.006 has produced charred plant assemblage characteristic of the early prehistoric period as well as a stratified flint group, and thus radiocarbon dating is recommended. 88 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 8. © Cotswold Archaeology UPDATED OBJECTIVES Original fieldwork objectives 8.1 A series of WSIs were produced for the several stages of archaeological work (evaluations, excavations and the scheme-wide watching brief) on each section of pipeline. These WSIs included the objectives of each intervention which were itemised in generic form for the detailed excavations as follows: A Identify, investigate and record any archaeological remains B Establish the dates, chronology and character of the identified activity was it continuous or episodic? how extensive was the activity over time? when did it start and end? what can be discovered about the nature of the structures on the site? how were they built? what function did they perform? C Determine the nature of the patterning of the activity within the excavation area is there intra-site variation in deposit, structure and feature type and function? does artefact and ecofact distribution match that patterning? is there significance in the deposition of artefactual/ecofactual material? how are the secular, funerary and ritual elements of the landscape arranged in the excavated site? how do these fit into the wider contemporary landscape? D Analyse the economic base and resource exploitation of the site what, if any, technological and craft processes were carried out? is there any evidence to allow environmental reconstruction and how reliable is that evidence? what categories of material are present/absent and why? what was the source of raw materials? is there any evidence for trade relationships in the artefactual material or raw materials? how local or extensive were any such links? E Test the model of prehistoric (and other period) activity and settlement in the region does the site have a specialist function within that model? how does it fit within the chronology of sites in the area? is the settlement activity seasonal? episodic? marginal? F Provide information on the survival and quality of the archaeological resource to assist in the management of the resource in similar physical locations how truncated are features and deposits? what types of material evidence may be expected and what has survived? what is the best method of prospection for such sites? G Test feature sampling strategies H Disseminate the results of the work to the widest possible audience 89 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology I Prepare an archaeological archive of the site including the treatment and preservation of any finds, and the detailed analysis and publication of results to an appropriate level 8.2 Objective A has been achieved by the fieldwork and I is part of the continuing postexcavation programme. There is scope for pursuing the other objectives, particularly B, D, E and H, although the narrow corridor investigated means that most sites do not show clear spatial patterning and C is less realistic. There is some scope for a retrospective assessment of field methodologies (objectives F and G). Revised objectives 8.3 The results of the archaeological work include significant new information on a range of periods for each of the pipeline sections, and a large number of minor and undated features which contribute to the picture of human activity, but whose potential is lower or uncertain. Of particular significance are eleven Neolithic and Bronze Age sites. The Neolithic sites are all new and unpredicted discoveries – pits and small features at OTA 2.03, OTA 3.04, FTC 2.02, FTC 8.02 and FTC 18.12. Beaker/Bronze Age pits were discovered at OTA 3.04, ATK 14.09 and FTC 24.03 (near an extant round barrow), while ditches, largely dated to the Middle Bronze Age were discovered at sites OTA 4.10, OTA 5.01 (probably associated with the undated ringditch) and OTA 5.02. In addition, a possible sunken floored building at FTC 21.06 was radiocarbon dated to the Middle Bronze Age. 8.4 There were ten sites with features of Iron Age or Roman date. These included parts of settlements at OTA 3.04, FTC 7.01, FTC 14.01 and FTC 24.03 and a possible enclosure at FTC 13.03. Other ditches at OTA 4.10 and ATK 13.02 may represent more peripheral field boundaries. Confirmed Iron Age features were relatively rare, but included possible settlement features at FTC 33.02 and an iron smelting furnace at FTC 16.07, which was without diagnostic finds dated through radiocarbon. 8.5 Medieval sites were rare, but comprised part of a settlement at Powderham with a longhouse and sunken floored building (ATK 13.02). This also had post-medieval elements, and the remains of a post-medieval cob building were recorded at ATK 12.01, and those of a largely demolished brick kiln at OTA 3.07. A large proportion of the 62 undated ditches are likely to be medieval and later agricultural features. 90 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Earlier prehistoric features 8.6 The features initially dated to the earlier prehistoric period (including Middle Bronze Age) form an important focus for further description and analysis. All the Neolithic material is comparatively rare in the region, and there is only one other published Grooved Ware site from Devon (Quinnell, Appendix 2). Because sites of this period tend to be represented by individual or groups of pits containing diagnostic material, it is possible that a number of the so-far undated pits are of this date. Some contained charred plant remains suggestive of an earlier prehistoric date. As well as the sites with Neolithic pits, FTC 8.02 showed a possible ditch terminal and FTC18.12 a curving ditch which may be part of a ring-ditch. 8.7 By the Middle Bronze Age sites (particularly settlements) tend to be more common in the south-west, especially Dorset and Cornwall, although away from Dartmoor they are not as frequent in Devon (Fitzpatrick 2008, 118). The nature of the remains on the present project is often uncertain. Probable field boundaries are recorded at OTA 4.10 and OTA 5.02, and it is possible that a number of undated ditches are of this date, although these need characterising and examining in their landscape setting. Pits at ATK 14.09 were initially thought to be cremations, but bone is entirely lacking and they may be settlement-related. The only positively identified cremation (from OTA 4.01) is currently undated. The sunken-featured building (FTC 21.06) may be part of Middle Bronze Age settlement. As with the Neolithic, a number of undated pits may be settlement features or cremation pits without surviving bone (particularly FTC 12.05, FTC 18.12/13 and FTC 24.03). 8.8 The assessment of these sites and finds, in consideration with the broader regional state of knowledge and research aims, has indicated the following updated objectives. Objective 1: Create a secure chronology for the identified material culture and bioarchaeological remains 8.9 The identifications of prehistoric pottery wares, which in a number of cases are uncertain and provisional, need to be verified and tied to an absolute chronology. Dating of this material in Devon is generally less secure than in other parts of the country, and radiocarbon determinations are recommended for all contexts where distinctive ceramic forms have been identified (Appendix 2). 91 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 8.10 © Cotswold Archaeology Initial radiocarbon determinations have produced some unexpected results (Appendix 18). There is ambiguous dating from FTC 2.02 where Late Neolithic Grooved Ware has been identified, but associated with a radiocarbon date of 33393095 BC. At ATK 14.09 Trevisker Ware vessels are associated with dates of 16271504 BC and also 367-201 BC, while at FTC 21.06 a feature identified as a sunken floored building, containing charred crop processing waste, returned a date in the Middle Bronze Age. Paired samples will be sought to support this dating and the radiocarbon programme will be extended to include features associated with other finds, both artefacts and bioarchaeological assemblages. The proposals for further radiocarbon dating are presented in Appendix 18. 8.11 The establishment of a chronological framework for the pottery groups will add considerably to the corpus of this material from Devon, and may be applicable to other sites where earlier prehistoric pottery is less securely dated. The dating of features where ceramic evidence is absent may help characterise these types of site and help fill apparent gaps in the regional prehistoric record – for instance in the Middle Neolithic and Late Bronze Age/Early Iron Age, where identified sites are poorly represented (Appendix 2). Objective 2: To examine the environment and economy of earlier prehistoric sites 8.12 In many cases features dated to the earlier prehistoric period contain reasonable quantities of charred plant remains and charcoal which are to be analysed fully (Appendices 14 & 15). There are pits containing crop-processing waste, including grain, chaff and weeds, as well as hazelnut shells, associated with Middle Neolithic Peterborough Ware at OTA 2.03. At FTC 2.02 a pit radiocarbon dated to the Middle Neolithic contained mostly hazelnut shells and wood charcoal. Comparisons of the charred remains from all the sites with useful quantities of material will allow some assessment of the importance of cultivated as opposed to collected foodstuffs, the nature of the local environment, the composition of the woodland, and changes over time, and may perhaps also be related to local topography. Associated flintwork will also be examined for the possible functional differences between sites. 8.13 The roles of collected and cultivated plant food is a topic of debate in the Neolithic. There is evidence that emmer wheat and barley were introduced in to the region in the early 4th millennium BC, but there is some evidence of reliance on collected 92 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology plants in the Late Neolithic. It is still uncertain whether variations in food plants relate to different types of occupation, differences in environment, or differential preservation due to different methods of crop-processing (Pollard and Healy 2008, 90). 8.14 There is more than regional interest in the date of the introduction of cereals such as hulled barley, spelt wheat and bread-wheat, and it may be possible to contribute to the picture of adoption of these specific types. There appears to be evidence of both spelt and bread-wheat from OTA 2.03 (although the evidence is currently ambiguous). 8.15 For the Bronze Age, there are also reasonable charred plant assemblages from several sites, and in the absence of preserved bone, these may help determine whether sites were domestic or funerary ones. Site ATK 14.09 was recorded in the field as a possible cremation cemetery, although no bone was recovered. The palaeobotanical remains, however, include bread-type wheat and barley, while a nearby undated gully contained spelt wheat and weed seeds, so a Bronze Age farming settlement would now appear more likely. 8.16 The lack of preservation of bone on any of these sites precludes any investigation of the animal-based component of site economies. Objective 3: to determine the nature of activities undertaken at the sites 8.17 The features and material remains will be examined individually and collectively for each site in order to assess the likely function or functions of the site and the individual features. Difficulties have been identified concerning whether some sites were funerary in nature (with bones not surviving in the soil) – eg. FTC 12.05, FTC 18.12/13, FTC 24.03. The bioarchaeological remains may help determine whether food preparation/consumption was being undertaken, or whether burnt material is more characteristic of cremation pyres. 8.18 There is evidence that indicates that earlier prehistoric pits were sometimes dug for the purpose of receiving deposits of selected materials (other than burials). These deliberate (‘structured’) deposits often contain a limited number of objects or range of selected material, in contrast with other pits containing secondary deposits of fortuitously associated ‘rubbish’ that happened to be nearby and was used to infill the pit (Garrow 2006). The collection of utilised and natural stones from four pits at FTC 93 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 2.02 would appear to be such a deliberate deposit. These and the other earlier prehistoric pits will be examined together with the type, range and quality of their contents in order to gain an understanding of the depositional context of the material in each case. Comparisons will be made with other possibly structured pit deposits, such as Tremough, Cornwall (Pollard and Healy 2008, 82). Objective 4: to examine regional and wider production and exchange 8.19 The south-west has distinctive ceramic styles in the earlier prehistoric period, frequently made with gabbroic clay (and also other types of clay) which can be linked to specific sources (Pollard and Healy 2008, 86). Continuing research on pottery fabrics has demonstrated some complexity to clay sourcing for different types of vessels in different periods (Appendix 2) and the collection of material on the present project offers the potential to further investigate vessel fabrics and their sources of production. Cornish gabbroic clay and Exeter volcanic fabrics have been positively identified in the collection, but there are a range of other fabrics present – in the case of pit OTA 3.04.096, six vessel fabrics from one feature. It is proposed that 35 microscopic examinations and nine thin sections are undertaken on the material in order to examine sources of production and the implications for contacts and exchange. Iron Age and Roman sites 8.20 There is as yet no material from the project that can be firmly ascribed to the earlier Iron Age, and this is characteristic of Devon in general (Appendix 2). The later Iron Age (from c 400 BC) in the south-west is characterised by a greater visible presence of non-hillfort settlements, usually small and enclosed, although little is known about settlement in Devon compared with the counties further east and west (Fitzpatrick 2008, 130). While there was Iron Age pottery from six sites, it was recovered in very small quantities. None came from the ironworking site FTC 16.07, and it is possible that other undated features (such as the iron smelting furnaces at 12.05w) are Iron Age in date. In four cases (OTA 3.04, FTC 7.01, FTC 13.03 and FTC 24.05) the Iron Age features were within Roman sites (probably settlements of one form or another) which suggests either a continuity of occupation across the Roman conquest, or the continuing use of later Iron Age ceramic types alongside Roman ones. The other Roman settlement (FTC 14.01) was probably later in date. The focus of further work will be on clarifying the form, nature and date range of these sites using the wider picture provided by geophysics and cropmarks where possible. 94 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Objective 5: to examine the dating and character of the Iron Age and Roman occupations 8.21 Despite the incomplete picture of the sites revealed in the pipeline easement there are suggestions of slightly different types and dates of occupation. OTA 3.04 appears to be a Roman period settlement with native-style architecture, at least initially; FTC 7.01 perhaps an Iron Age settlement that became enclosed; FTC 13.03 a probable enclosure, but without internal features; FTC 14.01 a Romano-British enclosure with terraces; and FTC 24.03 an open or ‘agglomerated’ site (with enclosures and open elements). There are reasonably large quantities of pottery and other material from FTC 14.01 and FTC 24.03, but limited material from the others. Other material culture includes quern stones and a stone mould for a pewter dish. 8.22 Archaeobotanical remains from OTA 3.04, FTC14.01 and FTC 24.03 will be examined for information on the arable economies of these sites. The presence of flax processing waste from FTC 14.01 suggests the production of flax oil at this site, which is of more than regional interest (Appendix 14). Charcoal will also be examined from domestic sites OTA 3.04, FTC 7.01, FTC 14.01 and 24.03 to determine the type of wood used for fuel. This will be compared with the type of fuel used at the Iron Age iron smelting site FTC 16.07 and the as yet undated (potentially Iron Age) site FTC12.05w. 8.23 The metalworking slag from FTC 24.03 will be examined by XRF to determine whether any of it relates to the smelting of tin or the working of tin, lead or pewter. The stone mould will be petrologically examined to determine the source of granite. Objective 6: Examine the date and technology of iron-working and assess its significance 8.24 The iron-smelting furnaces at FTC 16.07, which a preliminary radiocarbon date indicates to be Iron Age, are of national interest, as very little is known about the location, technology and wider importance of iron production in Devon at this time, nor the source of the ore (Paynter 2006). The principal aims of further analyses will be to examine slag morphologies and the records of the furnace structures in order to assess the technology used; to obtain a mineralogical characterisation of the slags (using SEM and XRF as appropriate) for comparison with published examples, with 95 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology the potential to contribute towards the provenancing of iron objects from other parts of the country; and to examine slags for trapped ore fragments to determine the source of the ore. 8.25 The metallurgical analysis is to be supported by up to eleven radiocarbon determinations from the sequence of furnaces at pits at FTC 16.07, and from the furnace at FTC 12.05w (Appendix 18). Post-conquest medieval and later settlement and agriculture 8.26 There were few medieval sites identified overall, but part of a settlement or farmstead, comprising what was interpreted as part of a longhouse, an ancillary sunken floored building, and associated boundary ditches was examined at ATK 13.02 near Powderham. In addition, an apparently isolated medieval pit containing charred crop waste was examined at OTA 1.03, and there are presently undated pits at FTC 16.08, FTC 18.12 and FTC 19.07 containing comparable material. Further work on the medieval remains will focus on elucidating the development and nature of the Powderham site (from both archaeological and documentary sources) and examining the agricultural practices undertaken. The dating evidence from this site runs through into the 17th/18th centuries and further work will include the postmedieval phases. 8.27 A cob building, with some walls partly standing at the time of fieldwork, was excavated at ATK 12.01 Lower Nutwell, south of Exton. The complete floor plan was recovered and associated finds included roof tiles, roof slates, window glass and small quantities of pottery dating to both the medieval and early post-medieval periods. While the building is likely to have been in use in the 19th/early 20th centuries as a farm store or animal shelter, its original date and purpose is not yet clear. 8.28 The later 18th/early19th-century brick kiln at OTA 3.07 was too badly damaged to contribute significant new information on this type of structure, although comparable examples will be sought in order to illustrate the type of industrial site and the processes undertaken. 8.29 The project recorded a large number of ditches both as parts of occupation sites, and as more isolated features. Most are currently undated and many have no prospect of being dated by material remains. Some may be prehistoric since there is an 96 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology expectation that Dartmoor’s Bronze Age field systems were not unique to the uplands, and there is also the possibility of a Roman date, as these are commonly found in other parts of the country. However, it is probable that a large number will be medieval and later as Devon’s rural ‘historic character’ was largely defined by fields created in the medieval and early post-medieval period, and it has been estimated that over a quarter of hedgerows in existence in 1945 have since been removed (Turner 2007). The landscape context of undated ditches will be examined to determine their origin and significance where possible. Objective 7: Elucidate the nature and role of the Powderham settlement through an examination of the structural and functional evidence from the site 8.30 Detailed work is needed to characterise the type and functions of the structures at ATK 13.02. In the south-west, rural housing tends to be represented by two- or threeroomed cross passage houses, with longhouses common in Devon and Cornwall. Comparative sites will be sought, although peasant house sites in Devon have been examined rarely, except on marginal upland and these may not be typical (Rippon and Croft 2008, 197). 8.31 The sequence of activity will be refined as much as possible, although the pottery does not generally provide close dating for this period. The finds include a variety of ceramic wares, and petrological work is required to help determine sources of production and hence contacts. The presence of imported Saintonge jugs is notable but of uncertain significance for the site’s status. The identification of charred walnut in the post-medieval phases may suggest a relatively high status at this time (Appendix 15). 8.32 Aspects of the diet of the inhabitants will be examined through the food crops. Breadtype wheat, oats and rye have been identified and it may be possible to identify fodder crops such as vetch and barley. It is possible that functional differences between the buildings will be manifested through different charred plant assemblages. 8.33 The broader arable economy will be examined through the identification of crops and weeds, both from this site and from OTA 1.03. It is possible that dredge (mixed barley and oats) was grown for fodder. Similar crop assemblages for presently undated pits at FTC 16.08, 18.12 and 19.07 may amplify aspects of agricultural 97 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology practices at this time, which are thought to have been regionally distinctive, perhaps as a response to generally acidic soils and high rainfall (Straker 2008, 192-3). Objective 9: To examine the evidence for the structure and use of the cob building at Lower Nutwell (ATK 12.01) 8.34 The site records and associated finds will be examined in order to present a descriptive analysis of the building, its method of construction, evidence for its function and any evidence for alteration. Historic maps will also be examined to help establish its date and role. It will be compared with examples of the local vernacular tradition to help arrive at an overall interpretation. Objective 10: To examine the form and landscape setting of boundary and other ditches in order to determine, as far as possible, their implications for the history of land use and enclosure 8.35 Recorded boundary ditches will be examined according to their dimensions, plan form (eg double, rectilinear, curving), and their orientation with respect to the present pattern. They will be compared against the 1st edition OS mapping, and information on the historic landscape setting (from HCL mapping). Information compiled as part of the Archaeology and Heritage Surveys (CA 2005a-2005c) will be used as appropriate. Current field boundaries breached and recorded during the pipeline watching brief will be compared as appropriate. Regional research aims 8.36 These site-specific research aims will address some of the wider regional research aims identified in Archaeology of South West England (Webster 2008). These research aims include: RA 16 increase the use and improve the targeting of scientific dating RA 17 improve the quality and quantity of environmental data and our understanding of what it represents RA 20 improve our understanding of wild and cultivated plants in the past RA 21 improve our understanding of environmental aspects of farming RA 28 improve our understanding of Neolithic settlements and landscapes RA 29 improve our understanding of non-villa Roman rural settlement 98 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design RA 39 understand better the relationship of Neolithic and Bronze Age people to plants and animals, particularly with regard to (a) woodland resources; (d) status of arable farming in the Neolithic and Bronze Age RA 40 improve our understanding of agricultural diversification in later prehistory RA 41 improve our understanding of medieval farming 99 intensification and SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 9. PUBLICATION 9.1 The results from this excavation, merit publication and are of clear regional significance, it is proposed that a full report be published in a monograph in the Cotswold Archaeology series Publication synopsis Prehistoric and Roman settlement in south Devon: the archaeology of the National Grid South-West Reinforcement Pipeline in Devon, 2005-2007 By Stuart Joyce, Andrew Mudd, Ed McSloy and others Abstract 300 words Introduction 2500 words Site descriptions 11+ prehistoric sites 8000 words 10+ Iron Age/Roman sites 10000 words 2 Medieval/post-medieval sites 6000 words Synthesis of undated sites 4000 words Finds Flint and chert by E. McSloy 2000 words Prehistoric pottery by H. Quinnell 3500 words Roman pottery by E. McSloy 2500 words Medieval and later pottery by J. Allan 2500 words Brick, tile, clay by V. Taylor 600 words Glass objects by V. Taylor 400 words Metal objects by E. McSloy 400 words Metalworking debris by D. Starley 3500 words Stone objects by S Watts 1500 words Cremated human bone by H. Jacklin 500 words Animal bones by S. Warman 400 words Charred plant remains by W. Carruthers 6300 words Wood charcoal by D. Challinor 2000 words Molluscs by V. Taylor 400 words Radiocarbon dating by S. Warman 2500 words 100 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Synthesis and discussion 20000 words Bibliography 2000 words TOTAL 81800 words 126 pages @ 650 wpp Tables Flint 1 page Prehistoric pottery 2 pages Roman pottery 1 page Medieval pottery 1 page Brick, tile 1 page Metalworking debris 2 pages Stone 0.5 pages Animal bones 0.5 pages Charred plant remains 3 pages Charcoal 2 pages Radiocarbon 3 pages TOTAL 17 pages Illustrations Introductory 10 pages Site descriptions 25 pages Flint 1 page Prehistoric pottery 2 pages Roman pottery 0.5 page Medieval pottery 1 page Metal finds 0.5 page Stones 1 page Radiocarbon diagram 1 page Synthesis and discussion 6 pages TOTAL 48 pages Estimated overall total 191 pages 101 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 102 © Cotswold Archaeology © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 10. PROJECT TEAM The post-excavation and publication programme will be under the management of Andrew Mudd MIfA (PX Manager), who will provide quality assurance and overview, and will co-ordinate the work of the following personnel: Stuart Joyce (Project Officer; PO) Stratigraphic analysis, phasing, draft reporting, research and archive Ed McSloy (Finds and Archives Officer, FAO) Specialist artefact analysis and reporting, finds liaison, artefact dating, supervision of internal finds and archives contributions. Sylvia Warman (Environmental Officer; EO) Animal bone analysis and reporting; human bone, palaeo-environmental and scientific dating co-ordination and liaison. Victoria Taylor (Finds and Archives Assistant; FA) Specialist finds analysis and reporting (glass objects, molluscs) Tim Heaven (Finds Processor; FP) Additional finds and soil processing Peter Moore (Archaeological Illustrator, AI) Publication drawings; co-ordination of other illustrators Contributions from the following external consultants will be managed by the FAO and EO Kelly Abbott (Wiltshire Conservation Service) Metalwork conservation Alison Hopper Bishop (Museums’ Conservation Officer, Exeter City Council) conservation 103 Prehistoric pottery SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Wendy Carruthers (Freelance archaeobotanist) Archaeobotanical remains Dana Challinor (Freelance archaeobotanist) Wood charcoal Henrietta Quinnell (Freelance ceramicist) Prehistoric pottery John Allan (Ceramicist, Exeter Archaeology) Medieval and later pottery Susan Watts (Freelance petrologist) Stone artefacts Roger Taylor (Geologist, Royal Albert Memorial Museum, Exeter) Petrological identifications David Starley 10.3 (Freelance archaeo-metallurgist) Metalworking residues Rafter Radiocarbon Dating Laboratory (IGNS, NZ) Radiocarbon dating The final publication report will be edited and refereed internally by CA senior project management, will be externally copy-edited and externally refereed by Dr Frances Healy (Cardiff University) and Prof. Stephen Rippon (Exeter University). 104 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 11. TASK LIST Task Personnel Time Project Management HP 4 PXM 20 SA 4 PO 25 FO 2 Stratigraphic Analysis SA 3 PO 6 FO 4 Illustration AI 2 Fired clay, CBM FO 3 Prehistoric analysis & report Hquinnell FEE Conservation of prehistoric pottery FEE Roman analysis and report Exeter RAMM FO Medieval pottery Jallan FEE Illustration (all) AI 12 Conservation & cleaning Wilts CC FEE XRF EH FEE Report preparation FO 4 Illustration AI 5 Coin report FO 1 Dstarley FEE Research, comparanda, HER Worked Flint, Fired Clay & Daub & CBM Flint for publication Pottery 4 Metal artefacts Transport FEE Metal residues Metal residues Glass beads Report preparation FO 1 Illustrations AI 1 Soil processing FP 45 CPR sorting FA 25 Soils supervision & QA EO 5 Charred plants Wcarruthers FEE Biological remains Charcoal Dchallinor FEE Cockle shells FA 1 Human bone Hjacklin FEE EO 1 PO 4 AI 2 Animal Bone Publication summary Preparation of publication report Abstract and introduction 105 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Task Personnel Time Excavation results SA 8 PO 35 AI 20 PO 8 PO 10 Compilation of specialist reports, tables etc. Drawing briefs Discussion, conclusions Acknowledgements, bibliography SA 20 PO 10 AI 15 SA 5 Submission to external referees QA HP 4 Editing SA 10 Revisions PO 10 Illustration revisions AI 5 SUBMISSION OF PUBLICATION TEXT Archive Research archive completion Microfilm FA 6 PA 10 FA 3 Deposition FEE FA 4 Publication Copy-editing and proofs FEE Indexing FEE Printing FEE TOTAL Contingencies Radiocarbon dating Rafter 66 Radiocarbon supervision/QA EO 5 106 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 12. TIMETABLE 12.1 CA normally aim to have completed a publication draft within one year of approval of the updated publication project design. (This may subject to the availability of external consultants and external monitoring). A detailed programme will be produced on approval of the updated publication project design. 107 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 13. BUDGET 13.1 The following allocation of resources is proposed. Staff Resource CA Grade Person days Head of Publications Martin Watts 8 Post-Excavation Manager Andy Mudd 20 Senior Author Andy Mudd 50 Project Officer Stuart Joyce 108 Finds Officer Ed McSloy 19 Environmental Officer Sylvia Warman 11 Finds Assistant Victoria Taylor 39 Project Archaeologist TBC 10 Finds Processor Tim Heaven 45 Archaeological Illustrator TBC 62 External Specialists Specialism Person Prehistoric pottery H Quinnell Conservation RAMM & Wilts CS Metal finds XRF EH Medieval pottery J Allan Metal residues D Starley Charred plants W Carruthers Charcoal D Challinor Human bone Harriet Jacklin Radiocarbon dates Rafter Radiocarbon Lab Copy editing & proofs C Heighway Indexing Indexer Printing Archive deposition charges RAMM & Plymouth CMAG 108 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology REFERENCES Allan, J.P. 1984 Medieval and Post-medieval finds from Exeter 1971–1980 Exeter Archaeol. 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A., 2005 A New, Fully Standardized Skeletal Recording Form Following BABAO and IFA Guidelines, unpublished 112 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Jones, A.M. and Quinnell, H. forthcoming ‘Cornish Beakers: new discoveries and perspectives’, Cornish Archaeol. 45, 31–70 Jones, A.P., M. E. Tucker, & J. K. Hart. (1999) Guidelines and recommendations. In Jones, et al. 1999, 27–76. Jones, A.P., Tucker, M.E. and Hart, J.K. (Eds.) The description and analysis of Quaternary stratigraphic field sections. Quaternary Research Association technical guide 7, London, 27-76. McKinley, J.L., and Roberts, C.A., 1993 Excavation and Post-Excavation Treatment of Cremated and Inhumed Human Remains, IFA Technical Paper. No. 13 McKinley, J.L., 1994 ‘Bone Fragment Size in British Cremation Burials and its Implications for Pyre Technology and Ritual’, Journal of Archaeological Science 21.3, 339-342 McKinley, J.L., 2000a ‘Putting Cremated Bone into Context’. In S. Roskams (Ed) Interpreting Stratigraphy; Site Evaluation, Recording Procedures and Stratigraphic Analysis, BAR (International Series). Oxford: Archaeopress No. 910, 135-140 McKinley, J.L., 2000b ‘The analysis of cremated bone’, In M. Cox and S. Mays (Eds.) Human Osteology. Greenwich Medical Media: London, 403-421 McKinley, J.L. and Bond, J. M., 2001 ‘Cremated Bone’, In D.R. Brothwell and A.M. Pollard (Eds) Handbook of Archaeological Sciences, Wiley: Chichester, 281-292 Moore, P.D., Webb, J.A. and Collinson, M.E. (1991) Pollen Analysis (2nd Ed.). Oxford: Blackwell. Munsell Color (2000) Munsell soil color charts. Munsell Color, New Windsor (NY). NA 2000a Ottery St Mary to Aylesbeare, proposed High Pressure Natural Gas Supply Pipeline: Archaeological Desk-Based Assessment. Network Archaeology Report 241 NA 2000b Aylesbeare to Kenn, proposed High Pressure Natural Gas Supply Pipeline: Archaeological Desk-Based Assessment, Network Archaeology Report 274 113 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Newberry, J. 2002 ‘Inland flint in prehistoric Devon: sources, tool-making quality and use’, Proc. Devon Archaeol. Soc. 60, 1–36 Oswald, A. 1975 Clay pipes for the archaeologist British Archaeological Reports 14, Oxford Oswald, A. 1984 ‘The Clay Pipes’, in Allan 1984, 279–293 Peacock, D.P.S. 1969 ‘A Contribution to the Study of Glastonbury Ware from SouthWestern Britain’, Antiq J. 49, 41–61 Paynter S 2006 ‘Regional variation in bloomery smelting slag of the Iron Age and RomanoBritish periods’, Archaeometry 48, 2, 271-292 Pollard, J. 2001 ‘The Aesthetics of Depositional Practice’, World Archaeology 33.2, 315–33 Pollard J. and Healy F. (eds) 2008 ‘Neolithic and early Bronze Age’, in Webster C. J. (ed.) The Archaeology of South West England: South West Archaeological Research Framework, Resource Assessment and Research Agenda, 75-115. Quinnell, H. 1991 ‘The Late Mrs EM Minter’s Excavation of Hut Circles at Heatree, Manaton in 1968’, Proc Devon Archaeol Soc 49, 1–25 Quinnell, H. 1999 ‘Pottery’, in Gent and Quinnell 1999, 38–53 Quinnell, H. 2003 ‘Devon Beakers: New Finds, New Thoughts’, Proc. Devon Archaeol. Soc. 61, 1–20 Quinnell, H. 2007 ‘A Peterborough sherd from the Beach at Westward Ho!’, Proc. Devon Archaeol. Soc. 65, 231–3 Rafter radiocarbon laboratory (http://www.gns.cri.nz/nic/rafterradiocarbon). Reimer P.J., Baillie, M.G.L., Bard, E., Bayliss, A., Beck, J.W., Bertrand, C., Blackwell, P.G., Buck, C.E., Burr, G., Cutler, K.B., Damon, P.E., Edwards, R.L., Fairbanks, R.G., Friedrich, M., Guilderson, T.P., Hughen, K.A., Kromer, B., McCormac, F.G., Manning, S., Bronk Ramsey, C., Reimer, R.W., Remmele, S.M., Southon, J.R., Stuiver, M., 114 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Talamo, S., Taylor, F.W. van der Plicht, J. and Weyhenmeyer, C.E. 2004 ‘INTCAL04 Terrestrial radiocarbon age calibration, 0-26 CAL KYR BP’ Radiocarbon 46,1029–58 Reille, M. (1992) Pollen et Spores d’Europe et d’Afrique du Nord. Marseille : Laboratoire de Botanique Historique et Palynologie Rippon S. and Croft B. (eds) 2008 ‘Post-Conquest Medieval’, in Webster C. J. (ed.) The Archaeology of South West England: South West Archaeological Research Framework, Resource Assessment and Research Agenda, 195-207 Rosenfeld, A. 1964 ‘Excavations in the Torbryan Caves’, Proc. Devon Archaeol. Soc. 22, 326 Scheuer, L. and Black, S. 2000 Developmental Juvenile Osteology, Academic Press, London Schweingruber, F H, 1990. Microscopic wood anatomy, 3rd Edition, Swiss Federal Institute for Forest, Snow and Landscape Research Seagar Smith, R. 1999 ‘Romano-British Pottery’, in Fitzpatrick et al. 1999, 286–326 Stace, C. (1997) New Flora of the British Isles (2nd ed.). Cambridge: Cambridge University Press. Starley, D. 1995 Hammerscale, Historical Metallurgy Society Datasheet 10 Straker V. 2008 ‘Post-Conquest Medieval Environmental Background’, in Webster C. J. (ed.) The Archaeology of South West England: South West Archaeological Research Framework, Resource Assessment and Research Agenda, 189-194 Stratascan 2001 A Report for Cotswold Archaeological Trust on a Geophysical Survey carried out at Fishacre-Lyneham Pipeline Trials, Devon, Ref. No. 1629, Dec. 2001 Stuiver, M. and Polach, H.A. 1977. Discussion: Reporting of 14C data. Radiocarbon 19: 355–63 Stuiver, M. and Reimer, P.J. 1993 ‘Extended 14C database and revised CALIB 3.0 14C Age calibration program’, Radiocarbon 35(1) 215-30. 115 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Stuiver, M., Reimer, P.J., Bard, E., Beck, J.W., Burr, G.S., Hughen, K.A., Kromer, B., McCormac, van der Plicht, J. and Spurk, M. 1998 ‘INTCAL98 Radiocarbon Age Calibration, 24000-0 cal BP’, Radiocarbon 40(3) 1041-83. Thomas, J. 1999 Understanding the Neolithic London, Routledge Tomber, R. and Dore, J. 1998 The National Roman Fabric Reference Collection: A Tucker, M.E. 1982 Sedimentary rocks in the field. Wiley, Chichester. Turner S. 2007 Ancient Country: the Historic Character of Rural Devon, Devon Arch. Soc. Occ. Paper 20 Watts, M. 2002 The Archaeology of Mills and Milling Stroud, Tempus Publishing Ltd Webster C. J. (ed.) 2008 The Archaeology of South West England: South West Archaeological Research Framework, Resource Assessment and Agenda, Somerset County Council Wedlake, W.J. 1958 Excavations at Camerton, Somerset Camerton Excavation Club 116 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 1: THE WORKED FLINT AND CHERT BY ED MCSLOY A total of 638 (5635g) pieces of worked flint/chert or unworked/heat-affected material were recovered in 2006 and 2007. The majority derived from the eastern (OTA) and western sections of the pipeline (FTC). A relatively small proportion of the assemblage consists of probable stratified groups: from OTA site 03.04, for which Early Neolithic dating is supported by associated pottery and from FTC sites 02.02 and 33.01, which probably date later in the Neolithic. Among the remainder of the assemblage, there are indications from diagnostic tool forms or technological traits for dating spanning the Mesolithic to Early/Middle Bronze Age. The large bulk of the lithics was hand-recovered or represents unstratified/surface-collected material. A small quantity from the ATK and FTC sections was retrieved following the processing of bulk soil samples. Recording undertaken in advance of assessment consists of quantification (count) by raw material and class (Table 1), and where appropriate, a note of cortex, burning, any patination and post-depositional damage. Hammer-mode was not systematically assessed, although where there were clear instances of soft-hammer percussion, this was noted. Material with significant levels of post-depositional damage, presenting as extensive edge damage and abraded/rounded surfaces, has been described as ‘rolled’. A summary by location and site is presented below for larger groups in excess of 10 pieces. A summary of the small quantity of flintwork collected from fieldwalking on the Fishacre to Choakford section in 2001 is also included. Ottery St Mary to Aylesbeare (OTA) Quantities of worked flint or chert were recovered from 25 sites (266 pieces: Table 1.2). Of these only five sites were productive of moderately large groups (over 10) and these are described briefly below. Raw material consists of primarily flint of unpatinated flint of variable quality. In addition there are five pieces of coarser chert including two of Greensand chert (Site 03.04/Period 4 ditch fill 03.04.004). Also notable are ten pieces of red-banded flint/fine chert noted from Sites 03.02 and 03.04. This distinctive material was selected for a utilised flake/long blade from Site 03.04 deposit 206.007 and a scraper from the same site. The flint ranges in colour between of mid grey/grey-brown and dark grey, more commonly with unworn, moderately-thick buff cortex which may derive from a primary coastal chalk sources of east Devon such as those in the region of Beer Head, or possibly from the inland sources among the Blackdown Hills described by Newberry (2002). A lesser quantity of material with heavily-worn cortex was probably collected from eroded sources which might include beach sources to the south and south east. 03.02 A small group of 11 pieces was recovered including two scrapers (Table 1.2). The recovered material derived from topsoil (10 pieces) or subsoil type deposits and there were no further indications of early prehistoric activity. Raw material comprises unpatinated grey flint. 03.04 including Trench 206 Site 03.04 and the associated evaluation trench 206 produced a moderately large group of worked lithics (163 pieces), a proportion of which is associated with earlier Prehistoric pottery including material of Early Neolithic date from pit fill 206.015 and probable Middle Bronze Age date from pit fill 03.04.028 and ditch fill 03.04.061 117 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology (Quinnell, Appendix 2). Material from the Early Neolithic feature Pit 03.04.096 comprised a group of 56 pieces including a crested blade, blades or blade-like flakes (18), flakes, core fragments and shatter-pieces. The sharp condition and technological characteristics exhibited by this groups suggests it is stratified and of Early Neolithic date. A large (90mm) utilised blade/long flake from ditch fill 206.007 may also be of this date. The remaining material appears to be re-deposited, occurring with Romano-British or later material. A number of blades/bladelets, a plunging rejuvenation flake, a possible core-tablet type rejuvenation flake and an obliquelyblunted bladelet (from subsoil 03.04.002) are indications of Mesolithic activity. The bulk of the remainder consists of un-retouched flakes/chips, flake core fragments and shatter pieces and probably relates to later activity and a proportion may be contemporary with the small quantities of probable Middle Bronze Age ceramics. A total of seven pieces with secondary working include a discoidal scraper and a broken bi-facially-worked tool (?knife), both of which probably relate to the Late Neolithic/Early Bronze Age. 04.10 A small group of 19 pieces of worked flint was recovered mainly from subsoil deposit 04.10.002, Romano-British ditch 018 (fill 04.10.023) and undated feature deposits. A single flake was recovered in association with pottery of Middle Bronze Age type (pit fill 04.10.017). There are five pieces identified with secondary working comprising three scrapers, a flake with knife-like retouch and an unusual tool from a flake with abrupt retouch forming a rightangle and described as a piercer/scriber. The remainder consists of flakes or broken flakes and the group as a whole would be most consistent with Late Neolithic/Early or Middle Bronze Age flint working. 05.01 A total of 26 pieces were associated with this division. No pottery of earlier prehistoric date was recovered although a small part of the recovered lithics (a flake and possible utilised blade) derived from deposits internal to a ring-ditch feature and interpreted as mound material (deposit 05.01.025). The remainder of the worked flint derives from subsoil or topsoil deposits and some pieces are described as ‘rolled’ (abraded). There are five pieces with secondary working; three scrapers, a retouched flake and a broken fragment from a plano-convex knife. The remainder consists of flake debitage and the group taken together would be consistent with Late Neolithic/Early or Middle Bronze Age flint working. Other (Table 1.2) Smaller groups of lithics (between 1 and 9 pieces) were recovered along the length of the OTA section. The majority consists of unutilised removals or other debitage, about which little meaningful can be said. Of individual note is a single Mesolithic piece, a geometric microlith (scaline triangle) from division 09.01 subsoil deposit 09.01.002. Aylesbeare to Kenn (ATK) Quantities of flint or chert were recovered from 17 sites (74 pieces: Table 1.3). Of these only two sites were productive of groups over 10 pieces (below). Five pieces, all from division 13.02, were recovered following processing of bulk soil samples. The remainder, including a high proportion of material from subsoil or topsoil type deposits, was hand-recovered. Raw material consists primarily of flint for which the dominant colours are dark grey or greenish grey. A single chert flake was recovered from topsoil deposit 316.001 (Site 12.10). A small proportion of the flint, notably several flakes from Site 07.01, exhibits light mottled patination. The quality of the flint is good and there are a 118 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology number of bladelets and other finely worked pieces present (below). Cortex, where present is commonly moderately thick (in range 2–5mm) and most often unworn – suggesting derivation from chalk or weathered chalk deposits. In a small number of instances the cortex is worn as through fluvial action. Possible sources are the east Devon coastal or inland sources or possibly the ‘Bovey and Decoy Basins’ to the south and described by Newberry (2002, 17–19). 07.01 A group of 19 pieces of worked flint were recovered, all deriving from topsoil or subsoil deposits and mostly described as ‘rolled’. Identifiable tools consist of three scrapers including a small ‘button’ scraper from subsoil 07.01.002. Similarly small scrapers are commonly ascribed Late Neolithic/Early Bronze Age dating. The flake removals are broad and squat, and this would be consistent with flintworking characterising the Late Neolithic and later periods. 12.12 A small group of 7 pieces including flakes, a blade and a flake core fragment was recovered from topsoil or subsoil deposits. No tools or other closely dateable pieces were noted. 13.02 A group of 28 pieces was recovered, the majority clearly residual from medieval deposits. Quantities of Middle Bronze Age pottery were recovered from elsewhere on the site (Quinnell, Appendix 2), suggesting the presence of earlier Prehistoric activity in the vicinity. Limited evidence for Mesolithic activity is in evidence in the form of an obliquely-blunted bladelet from Period 7 make-up layer 13.02.197 and a broken bladelet from Period fill 13.02.200. The remainder consists of flakes/chips and, exceptionally, a very finely worked barbed and tanged arrowhead (Registered Artefact 1) from subsoil deposit 13.02.002. This item has suffered damage to its tang and one barb and for this reason is not classifiable according to Green’s typology (Green 1980). It is however of ‘fancy’ form with regular convex longer edges and shallow invasive retouch extending over both faces. It dates to the Late Neolithic/Early Bronze Age period and almost certainly early in this range (Beaker phase). Other The remaining portion of the recovered lithics represents topsoil/subsoil-derived material occurring as single flints or up to 3 pieces from each division. There are few tools; a denticulate on a blade from Site 13.02, subsoil 324.002 is representative of implements most common from the Mesolithic and Neolithic periods and a small, discoidal ‘button’ scraper from (division 13.01) topsoil deposit 13.01.001 may date to the Early Bronze Age. The majority comprises flake debitage which is not dateable in isolation or otherwise of significance. Fishacre to Choakford Quantities of flint or chert were recovered from 24 sites (301 pieces: Table 1.4). The large bulk of material was hand-recovered, with 14 pieces recovered from bulk soil samples from sites 12.05 and 33.01. Larger groups from five divisions, producing between 33 and 90 pieces, are described separately below. This the largest group of material from any of the pipeline sections is the most variable in terms of flint colour, ‘quality’ and characteristics of the cortex. The seemingly stratified groups from Sites 02.02 and 33.01 comprised grey/dark grey flint of good quality and with unworn buff-coloured cortex suggesting a primary or eroded chalk flint source such as those previously described. This appearance material contrasts with the largely or wholly re- 119 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology deposited groups from Sites 24.04 and 33.03. Material from both of the latter divisions was typically pale grey to mid grey, moderately coarse and opaque, and on the basis of the observable cortex which is most often well worn/rounded, was obtained primarily from secondary (fluvial) flint deposits. Chert, including Greensand chert probably from the Blackdown Hills, is occasionally seen, including a scraper from Site 13.03 (Evaluation Trench 9). 02.02 A total of 62 pieces was recovered, 51 of which from features also containing prehistoric pottery including Late Neolithic Grooved ware (Quinnell, Appendix 2; features 02.02.010, 02.02.004, 02.02.006, 02.02.013 and 02.02.016). Most material, other than the element from subsoil or topsoil deposits, is in ‘sharp’ condition and exhibits similar characteristics of colour and cortex. Such factors, together with the presence of small removals or shatter spalls encourages this being a wholly or largely a stratified group. Pieces with secondary working (tools) comprise a denticulate on a blade/long flake and a broken scraper or retouched flake from Period 2 pit fill 02.02.008; a combined denticulate/end scraper on a blade from Period 4 pit fill 02.02.015 and an end scraper from Period 2 pit fill 02.02.011. The debitage component comprises flakes/chips, shatter pieces and core fragments. The tools (or the debitage), whilst not specifically pointing to the Late Neolithic date suggested by the pottery, do not contradict such dating. 24.03 A group of 50 pieces was recovered; for the most part re-deposited within Romano-British deposits or from subsoil horizons. A distinctive aspect of the lithics from this site division is the raw material which is of indifferent quality and seemingly obtained mainly from derived sources (above). There are a small number of blades/bladelets with evidence for platform preparation, bladelet cores and one core tablet, which are indications of some Mesolithic activity. The bulk of the flint comprises flake removals, a number of which are fully cortical and which are commonly, broad, squat and irregular. The overall crudeness of the flake debitage, whilst in part an effect of the raw material, are probably indications of relatively late dating (Bronze Age). Further indications of this are among the tools which include two piercers, implements which are frequently recorded among the Early to Middle Bronze Age toolkit and a number of miscellaneous retouched pieces. 33.01 Excepting four flakes recovered as unstratified material, the flint from division 33.01 (33 pieces) derived from the fills of undated (Period 10) pit 33.01.006. Included are 13 pieces (mainly small chips) recovered from soil sample residues. The sharp condition of the flint from this feature and common presence of small debitage suggests a stratified (earlier prehistoric) group. A single piece, a long flake, features a small area of abrupt retouch. This and other pieces exhibit signs of utilisation as cutting pieces. In the absence of definable tools indications of dating are those based on technology: most removals are flakes in moderately good quality dark grey flint, struck with a hard hammer – characteristics most consistent with Late Neolithic or earlier Bronze Age date. 33.02 Material from this division (48 pieces in total) was recovered primarily from subsoil or colluvial deposits, with single flakes from ‘spread’ 33.02.007 and the fill of undated pit 33.02.004. The assemblage comprises entirely flakes or other debitage with no secondary working or evidence for utilisation. Based on observations of technology, the majority of material probably relates to the Late Neolithic/Bronze Age periods. 33.03 120 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology All material (67 pieces) from this area was unstratified or was recovered from subsoil horizons and was commonly ‘rolled’ in appearance There occur a few possible Mesolithic or early Neolithic pieces in the form of blades and worked-down bladelet cores. Among the blades are clearly soft-hammer struck examples in good quality pale grey flint. The raw material is variable: most abundant is a paler or mid grey, commonly coarsetextured flint with very worn cortex suggesting a derived source. As with the group from division 24.03 the properties of this raw material may have contributed to the thick, squat proportions of most removals. Tools are restricted to scrapers and miscellaneous re-touched pieces and the ‘feel’ for this group is that most will be relatively late, probably within the Bronze Age. Other Little among the worked lithics distributed across the remaining site divisions is worthy of comment and most must be representative of background prehistoric activity. A broken section from a bladelet with one blunted edge from Site 12.05 (soil sample 227), probably represents a geometric microlith of Mesolithic type. It was recovered in association with a pit containing Middle Bronze Age Trevisker type pottery and must represent a residual find. The worked flint from fieldwalking in 2001 The fieldwalking collection comprised a total of 32 worked pieces, 29 of which relate to the eventually constructed route. They came from plots 2.02, 3.03, 3.04, 7.01, 27.02, 27.03 and 27.04. The bulk of the collection is made up of flakes without secondary working and their condition is generally poor, with post-depositional damage evident on many pieces. Most pieces are unpatinated or with light mottled patina. The quality of raw material is varied with near equal proportions of poor quality grey flint and higher quality black and brown flint. Most flakes are wholly or mostly free of cortex, suggesting that primary reduction was undertaken elsewhere. Where present, cortex would seem to indicate that the raw material derived from both primary (Chalk) and secondary (gravel) sources. Diagnostic pieces consist of a single leaf-shaped arrowhead of earlier Neolithic date (Plot 3.03) and a broken fabricator of Neolithic or early Bronze Age date (Plot 2.02). Two scrapers (end/side and side scrapers) from Plot 2.02 and a further two retouched flakes (both Plot 3.03) are not closely datable. Debitage comprises primarily flake removals of squat proportions with length/breadth ratios close to 1:1. There is one multi-platform core (Plot 27.02). The flaking mode, particularly the absence of any blades or blade-like removals, is consistent with a later Neolithic to Bronze Age date for most pieces. Statement of Potential and Recommendations for Further Analysis The flint collection is of some interest as a sample across a region not commonly subjected to archaeological investigation. Of greatest significance are probable stratified groups from OTA site 03.04 and FTC sites 02.02 and 33.01, and the fieldwalking material from FTC 02.02. Those relatively small groups merit additional recording to include process-related recording for removals (degree of cortex present) assessment of hammer mode and length/breadth measurement. For the remainder of the assemblage the level of recording undertaken for the assessment is considered appropriate and sufficient for the purposes of final reporting (below). A report characterising the collection and discussing further indications of chronology, aspects of technology the procurement of raw materials and the general distribution of material relative to topography, should be prepared for the publication. Data relating to the unstratified groups and collected at the analysis stage for stratified groups 121 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology should be presented in tabular form in the final report. A number of tools (up to eleven) including the leaf-shaped and barbed and tanged arrowheads, should be drawn for the publication. 122 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 1.1: Worked flint and chert. Summary by material and class Class1 Tools (secondary working) Sub-total Other Sub-total Total Class2 arrowhead barbed and tanged denticulate flake retouched flake retouched broken scraper scraper broken scraper button scraper discoidal scraper double-ended scraper end scraper end side scraper end side broken scraper side scraper/denticulate knife broken knife plano-convex microlith microlith broken piercer piercer/scriber blade blade broken blade crested broken blade obliquely blunted blade utilised blade utilised broken bladelet bladelet broken bladelet obliquely-blunted Burnt (not worked) chip core blade core bladelet core flake core fragment core rejuve flake flake broken flake cortical flake utilised shatter Total Flint 1 2 9 4 1 1 3 1 0 11 9 1 3 1 1 1 1 1 2 1 54 16 21 1 1 4 1 7 21 2 3 40 7 3 9 25 3 211 127 44 5 24 575 629 123 Chert 1 1 1 1 1 6 9 10 Total 1 2 9 4 1 1 3 1 1 11 9 1 3 1 1 1 1 1 2 1 55 17 21 1 1 4 1 7 21 2 3 40 7 3 10 26 3 217 127 44 5 24 584 639 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 1.2: summary by site (Ottery St Mary to Aylesbeare) 1 13 15 1 1 1 1 1 6 1 1 3 3 7 1 1 1 2 1 26 16 2 1 1 1 1 1 1 1 3 1 1 4 2 1 1 37 12 5 2 1 1 2 3 4 1 6 2 4 1 1 2 1 16 2 1 1 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 2 1 1 2 1 1 4 1 11 2 2 89 2 74 1 1 6 124 9 1 2 1 19 2 26 2 2 2 1 2 1 4 11 1 8 1 4 3 2 104 42 14 4 4 3 1 1 1 1 1 1 1 4 8 1 1 1 Total 9.02 9.01 7a.04 5.03 1 5.01 4.11 4.10 4.09 1 4.08 4.06 4.01 205 (4.01) 8 6 3.08 206 (3.04) 2 8 3.07 3.04 3.03 3.02 207 (3.01) 3.01 209 (2.06) 2.04 2.01 1.02 1.01 Class blade blade broken blade obliquely blunted blade utilised blade utilised broken bladelet bladelet broken burnt chip core blade core flake core fragment core rejuve flake flake broken flake cortical flake retouched flake retouched broken flake utilised knife broken knife plano-convex microlith piercer/scriber scraper scraper button scraper discoidal scraper end scraper end side scraper end side broken scraper side shatter Total 1 1 2 4 263 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 1.3: summary by site (Aylesbeare to Kenn) 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 2 1 1 1 2 1 1 1 1 9 6 1 1 1 1 19 1 1 1 1 1 2 13 6 2 1 1 28 2 1 1 1 1 1 1 1 7 125 1 Total 14.09 14.04 14.01 324 (13.02) 13.02 13.01 12.12 12.09 10.03 08.02 07.02 07.01 05.01 316 (2.10) 02.03 01.03 0.02 Class arrowhead B&T blade blade broken bladelet broken bladelet obliquelyblunted burnt chip core flake core fragment denticulate flake flake broken flake cortical scraper broken scraper button scraper end Total 1 1 3 1 3 1 1 6 1 2 1 31 17 3 1 2 3 74 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 1.4: summary by site (Fishacre to Choakford) 3 5 1 2 3 9 1 1 1 6 1 1 3 1 18 17 4 1 1 1 1 2 1 1 1 1 2 3 1 1 1 1 14 1 1 1 1 7 1 9 8 5 1 2 1 4 1 1 1 1 14 6 1 20 13 3 1 3 5 2 5 7 17 10 1 1 2 Total 2 2 1 42.01 1 37.01 1 35.01 33.03 1 2 2 1 1 1 4 1 2 34.08 33.02 33.01 32.01 26.01 24.11 24.10 24.03 23.04 20.07 18.12 13.03 12.05 09.05 09.03 09.02 08.01 07.01 04.02 03.01 02.02 Class blade blade broken blade crested broken blade utilised bladelet bladelet broken bladelet obliquelyblunted burnt chip core blade core bladelet core flake core fragment core rejuve denticulate flake flake broken flake cortical flake retouched flake utilised microlith piercer scraper doubleended scraper end scraper end side scraper side scraper/denticulate shatter Total 1 1 1 1 1 1 16 6 3 5 21 1 1 78 67 27 5 2 1 2 2 1 1 1 2 1 1 1 7 62 2 2 6 1 1 1 1 1 3 4 2 4 2 6 50 1 126 2 1 2 1 37 4 48 63 3 1 2 1 1 4 1 1 1 20 301 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 2: PREHISTORIC POTTERY BY HENRIETTA QUINNELL Introduction/method statement All pottery has been examined and weighed in fabric groups, with abrasion noted where helpful for relationships to contexts. Generally the amount of prehistoric pottery found on sites in Devon in small compared to areas further east and north. It is important to study the assemblage in detail, aiming at publication which includes even single sherds from individual contexts. In total there are 436 sherds weighing 4981 grammes: details are provided in the accompanying tables which also specify where drawings, petrological work or radiocarbon determinations are recommended. There is little comparanda available for the areas traversed by the pipeline. In general throughout prehistory most pottery appeared to have a source fairly local to the site at which it is found. The only substantive study, that on the sites dug prior to the construction of the A30 Honiton to Exeter (Fitzpatrick et al 1999), makes this clear. However, in this study only a small proportion of the fabrics identified were petrologically examined. Dr Roger Taylor has been working with the author on a range of sites throughout Devon in the last few years and has been able to demonstrate considerable complexities of fabric sourcing (eg in Quinnell 1999). The only fabrics present on the pipeline so far recognised are gabbroic, from the Lizard in Cornwall, known in Devon from the Early Neolithic to the end of the Iron Age, and Exeter volcanic (Peacock 1969 Group 6) known at present only in the Middle Bronze Age (Quinnell 1991, 21) and the Middle Iron Age. It is recommended here that examples of each separate fabric with sufficient characteristics to indicate a broad date range be examined by Dr Taylor with a petrological microscope, with a selection in addition thin-sectioned. Most pottery is present in small amounts. All those pieces with distinctive form or decoration whose visual publication would advance future study have been recommended for illustration. All contexts with ceramics with distinctive form have been recommended for radiocarbon determinations if sufficient dating material is available. There are regrettably few such determinations currently available in Devon and the sequence of styles and forms is only known in broad outline. Among these, those considered most important for dating from their ceramics have been starred. No action is indicated on sherds/fabrics where their form and context do not warrant additional work; eg where sherds come from surface levels or are very small. However, wherever possible fabrics not petrologically examined will be confirmed in their suggested dating by comparison with those from elsewhere on the pipeline Distinctive features of the assemblage The Early Neolithic is principally represented by the pit group OTA 3.04.96. An Early Neolithic pit group from the broad vicinity has been published (Fitzpatrick et al 1999) and another four unpublished sites with pits with pottery of this date are known to the author. Middle Neolithic pottery in Devon is sparse: the group from OTA 2.03.005 is a useful addition to that already known (Quinnell 2007). The two Grooved Ware assemblages in the Fishacre to Choake section, FTC 2.02 and 18.12 are of considerable regional importance as only three other sites with Grooved Ware sherds are known from Devon with only one published (Rosenfeld 1964). The AOC Beaker from FTC 24.02 is unique so far in Devon and Cornwall where Beaker finds on the whole are sparse. AOC Beakers are generally considered to belong comparatively early within the use of Beaker pottery, while the dates currently available for this part of the South West have suggested that Beakers were a 127 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology comparatively late introduction (Quinnell 2003: Jones & Quinnell 2006). The study of this pottery and its context rd will go some way to fill the current gap in our knowledge of the 3 millennium cal BC. The next period represented is almost certainly the Middle Bronze Age. It is just possible that the pits with Trevisker pottery from ATK 14.09 are Early Bronze Age but activity involving pits and ceramics appears much more likely to belong to the Middle Bronze Age. Those sites such as OTA 4.10 with Trevisker ware in Exeter volcanic fabric have parallels with Middle Bronze Age occurrences at Castle Hill, Honiton (Fitzpatrick et al. 1999) and Heatree, Dartmoor (Quinnell 1991) and the fabric source has not so far been demonstrated to have been used before the Middle Bronze Age. Sites such as OTA 5.02 with occasional Bronze Age sherds appear to belong best to the extensive expansion of settlement which occurred in the Middle Bronze Age. The data from the pipeline shows a long gap between the Middle Bronze Age and the Middle Iron Age. This is consistent with the pattern of ceramic use in Devon, where pottery use seems to have been at a low level through this period (Quinnell 1999). The scatter of Middle Iron Age sites reflects the general increase of pottery found in the county from that date. The granitic derived material from FTC 7.01 in particular is of considerable interest in providing a possible early start for the fabric source known as South Devon Ware which occurs in the Roman period. Details of pottery from sites in sequence along the pipeline route Ottery St Mary to Aylesbeare Site 2.03 (isolated pit) 2.03.005 fill of pit 2.03.004 ?? Middle Neolithic: Six sherds of similar fabric, three with abraded traces of impressed decoration on oxidised exterior; the other sherds are not oxidised, one of which has finger nail decoration. These probably belong to the Peterborough tradition. The sherds are too abraded and scrappy for illustration. Site 2.06 Site with ditches: Scrap of probable Later Iron Age pottery Site 3.04 site with prehistoric pits and ring ditch 03.04.002, subsoil: four burnished sherds probably Later Iron Age 03.04.028, secondary fill of pit 3.04.026: thick grogged sherd, almost certainly Middle Bronze Age 3.04.061, in 3.04.060 part of generic cut 03.04.004 east of ring gulley 3.04.045: two sherds grogged fabric, probably Middle Bronze Age 3.04.096, pit: date uncertain. There appear to be six fabrics. One sherd in fabric (a) appears to come from an Early Neolithic carinated bowl. The occurrence of such a wide range of fabrics at any date in prehistory in one context is without parallel in Devon. 206.015, primary fill of pit 206.015 (Generic feature 3.04.096). Includes: a) granitic derived sherd from carinated bowl; b) three sherds v fine temper; c) twenty sherds + scraps in vein quartz fabric; d) ten sherds in fabric with voids; e) five sherds gabbroic; f) six sherds fine sandy fabric 30.04.089, upper fill 206.015 (Generic feature3.04.096). Includes: b) one sherd; c) two sherds; f) five sherds Site 4.10 site with Middle Bronze Age features 128 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 04.10.11, third fill of ditch 4.10.008: thirteen sherds, some conjoining, of plain Trevisker vessel in Exeter volcanic fabric 04.10.12, fourth fill of ditch 4.10.008: six sherds probably of a finer version of Exeter volcanic fabric 4.10.017, fill of pit 4.10. 16: six sherds probable Bronze Age fabric with grog and rock Site 5.02 with ditch 5.02.005, fill of ditch 5.02.004: one abraded sherd of probable Middle Bronze Age grogged fabric Site 9.02 with ditches 9.02.012, marked ‘surface find’ from 9.02.015: sherd probable Early Neolithic vein quartz fabric Aylesbeare to Kenn ATK Site 4a.01 site with ditches 4a.01.02, subsoil: base angle sherd Exeter volcanic fabric probably Middle Bronze Age; sherd from carination fine-grained reduced granitic fabric, probably Late Bronze Age to Early Iron Age. Presumably indicates activity in vicinity from Middle Bronze to Early Iron Age. Site 12.13 site with Post-Medieval building 12.13.001, cleaning topsoil: body sherd in rock, vein quartz and grog fabric, body sherd granitic fabric. The thickness and general finish of the sherds suggests Middle Bronze Age activity. Site 13.02 Later prehistoric ditches 13.02,124, ditch fill: two sherds and scraps in thin reduced rock tempered fabric. General character of sherds, thinness and finess of temper suggests a date in the Early to Late Iron Ages. 13.02.176 ditch fill: single body sherd Exeter volcanic fabric, Middle Bronze Age fabric type. The data appear to suggest a long range of activity. Site 14.09 Middle Bronze Age pit group. All the pits with ceramic finds are likely to date to the Middle Bronze Age. Recent work (author: in progress) is demonstrating that pits of Middle Bronze Age date, so far found but not published on at least 10 sites in Devon, may be the remnants of occupation activity. The simple rim from 14.09.013 (fill of elongated pit 14.09.019) is described as of Middle Bronze Age Trevisker type; however little is known about the Late Bronze Age ceramics in Devon and it is possible that such a rim could also occur at this date; this makes the radiocarbon dating recommended from this context important. 14.9.20 fill of pit 14.09.018: five sherds and scraps conjoining Exeter volcanic fabric fabric variant, expanded rim with cord-impressed zone beneath. Trevisker style. Very similar in form to that from pit 14.9.003. 14.9.004 fill of pit 14.09.003: excavated from block of soil lifted from site; apparently originally all conjoined. 46 sherds of rock tempered fabric from Trevisker vessel. Rim with expansion badly damaged; zone of cordimpressed decoration beneath. Probably about 1/4 of the vessel present. 14.09.008/9 fills of pit 14.09.016: fourteen sherds Exeter volcanic fabric; all body sherds. 129 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 14.09.013, fill of pit 14.09.12 (Generic feature 14.09.017): rim sherd Exeter volcanic fabric; rim of simple expanded Trevisker type Fishacre to Choakford FTC Site 2.02 Late Neolithic pits with Grooved Ware. A noticeable feature of the sherds is their high abrasion and small size. Details of fabrics are given in the supporting Table. In addition to pits with pottery for which radiocarbon dating is recommended, aceramic pits in the group could also be usefully included for determinations. There are currently no radiocarbon determinations for Grooved ware in Devon. 2.02.005, fill of pit 2.02.004: twenty-two sherds, including a pointed rim and body sherds with incised zig-zag and close-spaced parallel lines and comb impressed decoration too abraded for illustration. 20.02.08, fill of pit 2.02.06: ten sherds including a small rounded rim and a body sherd with an impression. 2.02.011, fill of pit 2.02.10: seventeen sherds including base angle with impressed decoration and body sherd With pattern of very fine incised lines Site 7.01 Ditches etc 7.01.005, Fill of pit 7.01.004, Middle Iron Age: seventeen sherds in a burnished granitic derived fabric. Rim and upper part of plain South Western Decorated vessel. The ware appears similar to some granitic derived fabrics found at Mount Folly, Bigbury (information E Wilkes) and its study may help in determining whether Roman period South Devon Ware has Iron Age prototypes. 7.01.036, Fill of pit 7.01.035, Middle Iron Age: two burnished sherds those from 7.01.005 7.01.71, Fill of ditch 7.01.068: one sherd 7.01.005. Site 8.02 Site with ditches 8.02.005, Fill of ditch terminal 8.02.004, of possible Neolithic date: six conjoining sherds. The closest parallels for the fabric, with vein quartz inclusions in a micaceous matrix, are Early Neolithic. Note, John Allan has examined the sherds and agreed they are not medieval. The sherd is not sufficiently distinctive to provide a date. However if there are Neolithic lithics from the area the possibility of the ditch being Neolithic should be considered. If so, a radiocarbon determination should be considered. Site 13.03 Site with ditches 905, evaluation context number of fill of ditch 13.03.04: one sherd of granitic fabric, probably later prehistoric. Site 18.12/13 Late Neolithic pits containing Grooved Ware. The sherds are in better condition than those in Site 2.02, except those in 18.12.32. 18.12.032, Fill of pit 18.12.32: 37 sherds, undecorated and very abraded, apparently of gabbroic fabric. These come from lower wall and base of one vessel. The vessel may have been decorated on its upper part. Given the 130 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology propinquity of the pit to those with Grooved Ware described below, it is important to obtain a radiocarbon date as there are currently no known examples gabbroic fabrics in Later Neolithic contexts in Devon. 18.12.019, primary fill of pit 18.12.018: eight sherds including base angles and body sherds with incised decoration. 18.12.20, Middle fill of pit 18.12.018: twenty-seven sherds including body sherd with incised chevrons. 18.12.021, Upper fill of pit 18.12.018: twenty sherds including some with incised chevron decoration and some from a complex design of incised lines and rows of finger nail. 18.12.55, ditch with Grooved Ware labelled on the plan as 18.12.049: forty-four sherds, all fresh with some conjoins and probably from two vessels; one vessel has simple rim with grooves beneath and elaborate incised decoration, second vessel includes base angle, and complex overall incised decoration. Site 24.02./03/04 Pit near barrow with AOC Beaker sherds: The sherds from all three contexts in the one pit are from the same vessel. No conjoins are immediately obvious and sherds are abraded. No rim present and most of base missing; base (angle) sherds occur in two upper levels. It is likely that some sherds only from a vessel had been buried, a frequent practice in Devon (Quinnell 2003). 24.03.002, subsoil: one plain of similar fabric to Beaker 24.03.61, primary fill 24.03.60: forty sherds 24.03.62, Second fill 24.03.60: eight sherds 24.03.63 Upper fill 24.03.60: Four sherds Site 24.05 Site with pit 24.05.005, fill of pit 24.05.004: two sherds probably Iron Age from their fabric. Site 33.02 Site with ‘dry smoker’ 33.02.006, clay spread: two sherds probably Iron Age from their fabric. 131 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 2.1: Prehistoric pottery summary (Ottery St Mary to Aylesbeare) Site Context Deposit type* Sherds/weight Fabric & date 2.03. 03.04 2.03.005 2.06.007 03.04.002 03.04.028 03.04.061 03.04.089 03.04.089 03.04.089 206.015 206.015 206.015 206.015 206.015 206.015 04.10.11 04.10.12 04.10.017 05.02.005 09.02.012 Pit fill (2.03.004) Ditch fill (3.04.045) Subsoil Pit fill (03.04.026) Ditch fill (03.04.004) Upper Pit fill (3.04.96) Upper Pit fill (3.04.96) Upper Pit fill (3.04.96) Pit fill (3.04.096) Pit fill (3.04.096) Pit fill (3.04.096) Pit fill (3.04.096) Pit fill (3.04.096) Pit fill (3.04.096) Ditch fill (04.10.08) Ditch fill (04.10.08) Pit fill (04.10.16) Ditch fill (05.02.004) Ditch fill (09.02.011) 6 1 4 1 2 1 2 5 1 3 20 10 5 6 13 6 6 1 1 94 Fine grit, ?Peterborough, Middle Neolithic Fine grit, ?Iron Age Burnished fine inclusions, Later Iron Age Grog, ?Middle Bronze Age Grog, ?Middle Bronze Age b) c) f) a) Granitic, Early Neolithic b) Very fine inclusions c) Vein quartz, Early Neolithic d) Fabric with voids e) Gabbroic, Early Neolithic f) Sand Exeter volcanic, Trevisker, Middle Bronze Age Fine Exeter volcanic Middle Bronze Age Grog/rock, Middle Bronze Age Grog Middle Bronze Age ? Vein quartz Early Neolithic 04.10 05.02 09.02 Totals * feature no. in parenthesis 35 1 12 25 38 9 3 23 4 12 102 33 14 22 228 14 20 10 2 607 132 Recommendations Microscopic/thin-section 1 microscopic Illus. C14 1 1 microscopic 1 microscopic 1 1 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1* 1 1* 1 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 2.2: Prehistoric pottery summary (Aylesbeare to Kenn) Site Context Deposit type* Sherds/weight Fabric & date 4a.01 4a.01.02 4a.01.02 12.13.001 12.13.001 13.02.124 13.02.176 14.09.020 Subsoil Subsoil Subsoil Subsoil Ditch fill (13.02.123) Ditch fill (13.02.175) Pit fill (14.09.018) 1 1 1 1 2 1 5 26 1 14 5 7 13 117 14.09.004 Pit fill (14.09.003) 46 2980 14.09.008/9 Pit fill (14.09.016) 14 72 Pit fill (14.09.019) 14.09.013 Totals * feature no. in parenthesis 1 73 19 3254 Exeter volcanic, probably Trevisker, Bronze Age Granitic, probably Late Bronze Age to Early Iron Age Rock, vein quartz, grog prob Middle Bronze Age Granitic, prob Middle Bronze Age Fine rock, prob Middle-Late Iron Age Exeter volcanic, Middle Bronze Age Exeter volcanic, Trevisker decorated, Middle Bronze Age Rock temper, decorated Trevisker, Middle Bronze Age (lifted in block) needs conservation Exeter volcanic, Trevisker, plain sherds, Middle Bronze Age Exeter volcanic, plain Trevisker, Middle Bronze Age 12.13 13.02 14.09 133 Recommendations Microscopic/thin-section Illus C14 1 microscopic 1 1 1 microscopic + thin section 1 microscopic 1 1* 1 1 1 microscopic 1 1 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 2.3: Prehistoric pottery summary (Fishacre to Choakford) Site Context Deposit type* Sherds/weight Fabric & date 2.02 2.02.005 2.02.005 2.02.008 2.02.011 2.02.011 7.01.005 7.01.036 7.01.071 8.02.005 9.05 18.12.033 18.12.019 18.12.020 18.12.020 18.12.020 18.12.021 18.12.021 18.12.021 18.12.55 24.03.002 24.03.61 24.03.62 24.03.63 24.05.005 33.02.006 Pit fill (2.02.004) Pit fill (2.02.004) Pit fill (2.02.006) Pit fill (2.02.010) Pit fill (2.02.010) Pit fill (7.01.004) Pit fill (7.01.035) Ditch fill (7.01.094) Ditch fill (8.02.004) Ditch fill (13.03.004) Pit fill (18.12.033 ) Pit fill (18.12.018) Pit fill (18.12.018) Pit fill (18.12.018) Pit fill (18.12.018) Pit fill (18.12.018) Pit fill (18.12.018) Pit fill (18.12.018) Ditch fill (18.12.049) Subsoil Pit fill (24.03.60) Pit fill (24.03.60) Pit fill (24.03.60) Pit fill (24.05.004) Clay spread 16 6 10 12 5 17 2 1 6 1 37 8 5 2 20 13 1 6 44 1 40 8 4 2 2 269 Vein quartz, rock. Decorated Grooved Ware, Late Neo. Rounded inclusions, Grooved Ware, Late Neo. Rounded inclusions as 2.02.005 Grooved Ware, Late Neo. Vein quartz etc as 2.0.02.005 Grooved Ware, Late Neo. Rounded inclusions as 2.02.005 Grooved Ware, Late Neo. Granitic derived fabric, Middle Iron Age As above As above Vein quartz micaceous, probably Neolithic Granitic probably later prehistoric Gabbroic, Grooved Ware? Late Neo? Micaceous with rock, Grooved Ware, Late Neo. Hard rock tempered Grooved Ware, Late Neo. Grog temperd Grooved Ware, Late Neo. Micaceous as 18.012.19 Micaceous with rock as 18.12.019 Grooved W, Late Neo. Hard rock temper as 18.12.020 Grooved W, Late Neo. Open fabric, hard rock inclusions Grooved W, Late Neo. Open fabric with rock as 18.12.21 Grooved W, Late Neo. Granitic derived fabric as Beaker below Granitic derived AOC Beaker Granitic derived AOC Beaker Granitic derived AOC Beaker Granitic derived Granitic derived 7.01 8.02 13.03 18.12 24.03 24.05 33.02 Totals * feature no. in parenthesis 49 46 12 65 17 45 9 2 13 8 429 59 21 8 27 31 20 39 20 6 150 16 12 14 2 1120 134 Recommendations Microscopic/thin-section 1 microscopic 1 microscopic 1 microscopic 1 microscopic 1 microscopic Illus C14 1 1 1 1* 1* 1 microscopic 1 1 microscopic + thin-section 1 microscopic + thin-section 1 microscopic + thin section 1 microscopic 1 microscopic 1 microscopic + thin-section 1 microscopic + thin-section 1 microscopic+ thin-section 1 microscopic+ thin-section 1 1 1* 1 1 (1) 1 2 1* 1 1* 1 microscopic+ thin-section SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 3: ROMAN POTTERY BY ED MCSLOY Quantities of Roman pottery were recovered from each of the sections of the pipeline route (Ottery St Mary to Aylesbeare; Aylesbeare to Kenn and Fishacre to Choakford sections). The large majority of material derived from Sites 14.01 and 24.03, located within the westernmost section (Fishacre to Choakford). The condition of the assemblage was mixed and comment in respect of the larger site groups is included below. High levels of fragmentation were however a feature of most groups and this is reflected by the moderately low mean sherd weight (below). The pottery is described in summary below according to location and ‘Site’. Recording as part of the assessment has included basic quantification by fabric type by sherd count and weight; and where identifiable, note of vessel form. The presence of carbonised or other residues was also noted. Ottery St Mary to Aylesbeare (Tables 3.2–3.3) Roman pottery from this section amounted to only 5 sherds (53g), of which 4 sherds were recovered from Site 3.04. Site 3.04 Single bodysherds of Roman pottery (in total 51g) were recovered from ditch fills 03.04.014, 03.04.062 (Ditch 03.04.004), gully fill 03.04.042 (ring gully 03.04.045) and topsoil deposit 03.04.001. Broadly Roman dating this material is indicated on the basis of the fabric alone (Table 3.1). Site 4.10 A single, small and abraded sherd in a black-firing sandy fabric from ditch fill 04.10.023 (ditch 04.10.018), has been identified as of probable Roman date. Aylesbeare to Kenn Site 0.03 Ditch fill 0.03.07 produced five sherds (16 grams) in a coarse sandy reduced fabric and representing a single vessel. The vessel form is identifiable as a necked jar or bowl with out-curved rim and with a possible cordon at the junction of neck and shoulder. The surfaces of this vessel are much degraded probably due to inhospitable soils, and possibly also as the result of burning. There are traces of a carbonized deposit below the rim. Site 13.02 Two abraded bodysherds of Roman pottery weighing 9 grams were recovered from subsoil deposit 13.02.002. One sherd occurs in a hard sandy fabric with orange-firing outer surface and grey inner and core. The seconds sherd is heavily weathered but proably is a sherd of Dorset Black-Burnished ware. Neither is closely dateable. Fishacre to Choakford (Tables 3.2–3.3) 135 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Material from this section of the pipeline amounted to 539 sherds weighing 4817 grams. The bulk of material relates to features excavated within two sites 14.01 and 24.03. Site 13.03 (Tables 3.2–3.3) A single small chip (1 gram), probably of Black Burnished ware and of broad Roman date, was recovered from ditch 13.03.011. Site 14.01 (Tables 3.2–3.3) A total of 132 sherds (2121 grams) relates to features excavated within Site 14.01. Largest quantities were derived from Pit 14.01.004 (29 sherds); ditch 14.01.106, ‘natural depression’ 14.01.081 and terrace feature 14.01.107. Relatively small quantities of pottery were recovered from the ditch features 14.01.105 and 14.01.106 (Table 3.1). The condition of this group is typically poor; heavily fragmented and with common surface loss, due probably to the ‘aggressive’ soils. The mean sherd weight is moderately high at 16 grams, although this is certainly inflated by the abundance of thick-walled storage jar sherds. The range of material is consistent across the sampled deposits, although the more-closely dated deposits relate to selected features and close contemporaneity across the site cannot be demonstrated. Most abundant by far (102 sherds or 77% of the group) comprise South Devon reduced wares, which were recognised from all but one excavated deposit. This distinctive type is believed to have been made throughout much of the Roman period (Holbrook and Bidwell 1991, 177–81), with closer dating possible based on vessel form. The type’s probable source, in the area south of Dartmoor (ibid. 177), accounts for its prominence here. The range of forms represented is reflective of the type known from larger assemblages including those from Exeter and sites along the Honiton to Exeter road improvement scheme (Seager Smith 1999, 309, fig. 155). The influence of Dorset Black Burnished wares is much in evidence and suggests that the assemblage is predominantly later Roman in date. Conical flanged bowls (from subsoil 14.01.002 and fill 14.01.080 of pit 14.01.038), plain rimmed dishes (14.01.080) and everted-rim jars (fill 14.01.033 of ditch 14.01.105), follow from Black Burnished ware forms common from the mid 3rd and 4th centuries AD. Large storage jars with distinctive raised cordons and curved rims (from terrace 14.01.107: deposits 14.01.046 and 14.01.084) and everted-rim jars with grooved rim uppers (terrace 14.01.107: deposits 14.01.046 and 14.01.077), show other influences, although similar later Roman can be demonstrated on the basis of parallels from Exeter (ibid. 178–9). The range of other represented fabrics is restricted. Black-Burnished ware (South-east Dorset BB1), a coarseware type dominant in Exeter occurs as only 7 sherds; the availability of South Devon wares in corresponding forms, probably accounting for this. Identifiable vessel forms are restricted to a conical flanged bowl from deposit 14.01.047 (terrace 14.01.107), a class dateable to the mid 3rd to 4th centuries (ibid. 98–9). A wheel-thrown black-firing and micaceous fabric (BSm: 7 sherds), may be equivalent to Exeter Micaceous grey wares (ibid. 163–5), a type which appears to span the 2nd to 4th centuries. A carinated bowl with bead rim in this fabric from fill 14.01.099 of ditch 14.01.106 is among the few earlier Roman forms identified and probably dates no later than the 2nd century AD. Fine buff/orange-firing fabric OXIDf occurred as necked jar forms from ditch fills 14.01.061 and 14.01.0974. This type appears to be susceptible to surface weathering, very likely as the result of soil conditions. A source for this type to the east (Exeter?) seems likely, although it cannot a present be equated with any one ware type. 136 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Two sherds of samian represent the only imported wares identified. A Central Gaulish bowl sherd from deposit 14.01.046 (terrace 14.01.107) dates to the 2nd century AD, although is very likely residual. The second sherd, from deposit 14.01.077 (terrace 14.01.107), derives from a Drag. 33 cup and is East Gaulish. As such it dates to the late 2nd or early 3rd centuries, although again this would appear to be residual within a later Roman deposit. Evaluation deposit 605 (Plot 14.01) One rim sherd in a fine oxidized fabric weighing 6 grams was recovered. The form is identifiable as a necked jar or bowl with curved rim. Broad Roman dating is suggested. Site 22.03 (Tables 3.2–3.3) Two sherds of Black Burnished ware and one of South Devon type (13 grams total) were recovered from subsoil deposit 22.03.002. The South Devon sherd is identifiable as from a flanged bowl of Late Roman type (mid 3rd to 4th centuries). Site 24.02 (Tables 3.2–3.3) A single small chip (<1 gram), of South Devon ware, broadly of Roman date, was recovered from subsoil deposit 24.02.001. Site 24.03 (Tables 3.2–3.3) A total of 376 sherds (2600 grams) relates to features excavated within Site 24.03. A small quantity (3 sherds weighing 20 grams) was recovered following processing of bulk soil samples, with the remainder hand-recovered on site. A large proportion (295 sherds) relates to Ditch 24.03.113 and the remainder to pits and gully features located to the north-west (Table 3.3). The condition of this group compares with that from Site 14.01, with much material heavily fragmented and common surface loss. The levels of fragmentation (and infrequency of thicker-walled vessel forms) is reflected in a low mean sherd weight of under 7 grams. The range of fabrics and forms is broadly comparable with that from Site 14.01 and a similar chronological emphasis towards the later 3rd to 4th centuries AD is apparent (Table 3.3). South Devon greywares are again ubiquitous, and the overall representation higher than that from Site 14.01 (82% of total sherd count). The bulk of the remainder comprises Dorset Black-Burnished ware (57 sherds or 15%) and this type is significantly better represented compared to Site 14.01. Other coarseware fabrics occur as bodysherds from wheel-thrown greywares from unknown sources. Fineware fabrics are present as two sherds of New Forest colour-coated ware, including a funnel-necked beaker sherd of later 3rd/4th century type from ditch deposit 24.03.088. Further indications of dating are provided from forms in South Devon ware and Black-Burnished ware. Both groups are are dominated by late-occurring vessel forms including conical flanged bowls (from deposits 24.03.088; 24.03.119 and 24.03.147) plain-rim dishes (24.03.023; 24.03.088; 24.03.095; and 24.03.147) and (in south Devon ware only) everted/grooved-rim jars (24.03.010; 24.03.119 and 24.03.147). In addition an evertedrim jar from posthole fill 24.03.025 exhibits obtuse-angled burnished lattice decoration of the type common from the mid 3rd century. Site 07.01 (Tables 3.2–3.3) 137 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology A small group of 27 (86 grams) sherds, entirely comprising heavily fragmented South Devon wares was recovered from ditch features excavated from Site 07.01. A single vessel form, an everted-rim jar, was identifiable from deposit 07.01.073. Evaluation deposit 302 (Plot 20.03) One abraded rim sherd of South Devon ware weighing 9 grams was recovered. The form is identifiable as a conical flanged bowl and this suggests a later 3rd to 4th century date. Statement of Potential and Recommendations for Further Analysis Although similarly small, the Roman groups from FTC sites 14.01 and 24.03, warrant publication as relatively rare evidence for patterns of pottery supply and use in the area to the south of Dartmoor. In advance of reporting additional recording is recommended to include an estimated minimum number of vessels (sherd families) and systematic recording of carbonised or other residues. A full library search for other Roman assemblages in the area should be conducted for the purposes of comparison with the groups from FTC sites 14.01 and 24.03 and representative sample of featured sherds should be drawn (up to 12 vessels). The summary statements provided as part of this assessment will be sufficient for the remaining groups. 138 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 3.1: Roman pottery types summary Fabric group S. Devon BB1 BS Fabric Code SDG BB1 BS BSm GAB? GWf GW2 OXID Description South Devon greywares South-East Dorset Black-Burnished Wheel-thrown dark-grey firing As above, micaceous GAB? ?Gabroic type Grey Fine, wheel-thrown grey Coarser grey OXID Misc. wheel-thrown oxidized wares As above, fine, powdery NFCC NFCC New Forest colour-coated ware Samian SAM CG Central Gaulish SAM EG East Gaulish *National Roman Fabric Reference Collection NRRFC Reference* Tomber and Dore 1998, 126 Tomber and Dore 1998, 127 Tomber and Dore 1998, 141 Tomber and Dore 1998, 32 Tomber and Dore 1998, 27–8 Table 3.2: Pottery fabric groups occurrence by Area/site. Quantities as sherd count and weight in grams. Area OTA ATK FTC Site 3.04 4.10 0.03 eval. 13.03 14.01 22.03 24.02 24.03 7.01 S. Devon Ct. Wt. 1 2 1 102 1 1 312 27 BB1 Ct. 2 1 Wt. 17 2 BS Ct. Wt. 5 16 Grey Ct. Wt. NFCC Ct. Wt. 9 1714 2 1 1841 86 1 7 2 1 116 11 7 165 57 640 1 5 3 87 2 6 139 OXID Ct. Wt. 1 32 1 6 14 108 GAB? Ct. Wt. Samian Ct. Wt. 2 1 21 18 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 3.3: Roman pottery summary of dating (Fishacre to Choakford). Quantities as sherd count and weight in grammes. Site 13.04 14.01 Sub-tot. 20.03 22.03 24.02 24.03 Sub-tot. 07.01. Sub-tot. Context 13.03.014 14.01.002 14.01.008 14.01.033 14.01.035 14.01.039 14.01.046 14.01.047 14.01.061 14.01.063 14.01.066 14.01.074 14.01.077 14.01.080 14.01.082 14.01.084 14.01.092 14.01.099 605 302 22.03.002 24.02.001 24.03.002 24.03.057 24.03.079 24.03.110 24.03.119 24.03.120 24.03.147 24.03.148 24.03.010 24.03.020 24.03.021 24.03.023 24.03.025 24.03.037 24.03.042 24.03.071 24.03.076 24.03.088 24.03.095 24.03.110 07.01.011 07.01.059 07.01.073 Ct. 1 7 29 2 6 6 4 3 27 1 1 1 9 6 26 2 1 1 1 133 1 3 1 3 1 1 1 71 20 35 42 39 1 2 13 11 1 6 1 3 122 2 1 376 12 2 13 27 Wt.(g) 1 93 156 18 60 92 174 35 184 6 46 4 23 98 27 997 26 82 6 2127 9 13 1 24 1 8 5 725 110 178 366 233 4 2 63 171 13 35 13 7 619 20 3 2600 44 5 37 86 Feature ditch 13.03.012 undefined pit 14.01.004 ditch 14.01.030 hearth 14.01.034 pit 14.01.038 terrace 14.01.012 terrace 14.01.012 ditch 14.01.055 ditch 14.01.020 ditch 14.01.064 ditch 14.01.073 terrace 14.01.076 pit 14.01.038 natural depression 14.01.081 terrace terrace 14.01.091 ditch 14.01.064 - Generic feature 13.03.011 14.01.105 14.01.107 14.01.107 14.01.106 14.01.105 14.01.106 14.01.108 14.01.107 14.01.107 14.01.107 14.01.106 - Spot-date RB LC3-C4 RB RB LC2-C4 LC2-C4 LC3-C4 LC3-C4 RB RB RB RB LC3-C4 LC3-C4 RB LC2-C4 RB MC1-C2 RB? Undefined ?topsoil topsoil? undefined gully 24.03.056 pit 24.03.036 gully 24.03.109 ditch 24.03.113 ditch 24.03.113 ditch 24.03.074 ditch 24.03.082 ditch 24.03.010 ditch 24.03.019 <27> ditch 24.03.019 undefined pit 24.03.024 pit 24.03.036 <8> pit 24.03.041 pit 24.03.041 ditch 24.03.074 ditch 24.03.082 Undefined surface gully 24.03.109 <19> 24.03.152 24.03.149 24.03.153 24.03.153 24.03.153 24.03.153 24.03.153 24.03.153 24.03.153 24.03.153 - MC3-C4 LC3-C4 RB C3-C4 RB RB RB LC3-C4 RB LC3-C4 RB C3-C4 RB RB C3-C4 MC3-C4 RB RB RB RB LC3-C4 C3-C4 RB ditch 07.01.007 ditch 07.01.058 ditch 07.01.072 - RB RB RB 140 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 4: THE MEDIEVAL AND LATER POTTERY BY JOHN ALLAN AND GRAHAM LANGMAN (EXETER ARCHAEOLOGY) Pottery of medieval and later date was identified from all sections (OTA, ATK and FTC), with the largest and most significant group coming from the medieval longhouse identified from ATK 13.02. The assemblage is described in summary below according to the section and listed (sherd count and types present) by context in tables 4.1–4.3. Section OTA (Table 4.1) This is a minor collection of 59 sherds weighing 628 grams, but it contains some surprises. The earliest group is from Site 01.03 pit fill 01.03.005 with tripod pitcher and chert-tempered comb-decorated cooking pot sherds of the mid to late 12th century. There are parallels in both Exeter and Somerset for this small assemblage, but this is an unusual find in rural Devon. The remaining material, which is dispersed across ten site divisions spans the 14th/15th to 19th centuries. There are two unusual imports, the first being a probable 16th-century Martincamp flask from Site 03.03 topsoil, the second, from Site 03.04 (ditch fill 03.04.21) a pale fawn bodysherd from a late medieval stoneware, possibly from Siegburg. This is an interesting find because late medieval stonewares are extremely rare in Devon and there are no close parallels in the region. Section ATK (Table 4.2) The collection consists of 1995 sherds from 74 contexts. The most significant component is the material from a longhouse (Site 13.02). Various comparable collections have come from Dartmoor, where several examples of these farmhouses have been excavated, but there are very few comparable assemblages from peasant sites in lowland Devon. There are no fewer than 52 sherds of imported green-glazed Saintonge pottery. It is impossible to recognize the number of vessels present; there are perhaps only one or two. Nevertheless this clearly shows that Saintonge jugs circulated in a rural peasant community that had access to the sea. Glazed English jugs make up a small of the site but the proportion is appreciably higher than in the Dartmoor material. The Exeter/South Somerset areas are represented, but there are other fabrics that deserve further research. In the late 13th/14th centuries coarseware cooking pots form a high proportion of the total. The collection is surprisingly different from the finds from Exeter, with more variety of fabrics alongside familiar chert-tempered wares from the Blackdown Hills. Some limestone-tempered wares resemble pottery from Haycroft Farm, Membury; this point should be resolved by petrological work. A third class of coarse ware is represented by cooking pots with tall rims turning inwardly; their source has yet to be established. In general the collection falls within the range 1250–1350, although a scatter of earlier material would not be distinguished from body sherds, given the long production range (11th to late 14th century) for chert-tempered ware. Only the presence of cupped type cooking pot rim forms indicates a 13th- or 14th-century date. The post-medieval assemblage is of less importance as it is not well dated and consists of a scatter of finds over a considerable length of the pipeline (Table 4.2). It does however fill out the picture of the use of imported pottery and other wares in south Devon. There are some scarce imports, notably Normandy stoneware, Spanish Columbia plain tin-glazed earthenware and German Werra slipware (for example the last national survey of 141 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Werra slipware listed only three examples at Bristol and three at Southampton). The most unusual and interesting coarse ware is rich in granitic inclusions and is not a standard Merida-type red ware. Its source may be either Brittany or Portugal. Section FTC (Table 4.2) This collection amounts to 185 sherds from 32 contexts, relating to 26 site divisions (Table 4.3). The earliest material, from contexts (topsoil deposits 03.01.001 and 13.02), belongs to the 13th/14th centuries. It includes sherds from a South Devon micaceous hand-made jug (03.01.001) and coarsewares imported from east Devon and the Blackdown Hills (13.02). There is a scatter of late medieval South Devon wheel-thrown micaceous ware in individual contexts. The post-medieval collection is dominated by coarsewares whose inclusions are derived from a granite source. Many of these match closely the finds from Totnes which were probably made in the kilns at Bridgetown Pomeroy, but other centres making very similar material have recently been recognized at Plympton (where 17th century wasters have been recovered) and Dodbrooke near Kingsbridge (where potters are documented in the 17th century). The vessels represented include some interesting forms – a chill, a candlestick and a skillet – alongside the more commonplace bowls and handled jars. North Devon pottery makes a limited showing (nine sherds from six vessels, including a single sgraffito-decorated sherd). Another coarseware which forms a minor component in this assemblage (six sherds) is Cornish St Germans-type calcareous (probably shell-tempered) ware. This fabric is well represented in 15th/16th-century groups from excavations at Plymouth. The imported wares include the ubiquitous Frechen, Raeren and Westerwald stonewares. A single featureless body sherd with a dense red fabric and glossy brown glaze is a candidate for a more unusual import; it resembles a Spanish Melado coarseware, a distinctive ‘honey-coloured’ red earthenware, rarely recognized in this country. Statement of Potential and recommendations for further Analysis The medieval and post-medieval assemblage also merits selective further analysis. Most significant is the material from the longhouse identified from ATK 13.02. Comparable collections have come from Dartmoor, where several examples of these farmhouses have been excavated, but there are very few comparable assemblages from peasant sites in lowland Devon. The collection from Site 13.02 is surprisingly different from the finds from Exeter, with more variety of fabrics alongside familiar chert-tempered wares from the Blackdown Hills. A full catalogue and report should be produced for this material to be accompanied by approximately one page (25 vessels) of illustrations. It is also recommended that petrological analysis should be undertaken for selected sherds to assist with characterisation of fabrics and possibly to determine source. In addition to the collection from Site 13.02 there are small groups and individual occurrences from other sites which warrant further investigation to include summary reporting. 142 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Table 4.1: Section OTA medieval and later pottery summary. Quantities as sherd count and weight in grammes. Site/plot 01.03 Context* 01.03.002 Spot date ?14/15C+ Ct. 1 Wt. (g) 12 01.03 01.03.005 (01.03.004) M-L12C 9 52 02.06 02.06.011 (u/s) 208.002 unstrat 15C 1 2 17C/18C post 1800 1 16 54 146 03.01 03.02 207.007 03.02.001 1760+ 1720L18C 2 12 56 114 03.03 03.03.001 18C 7 104 03.04 03.04.021 (03.04.004) 03.04.081 (03.04.044) 04.01.005 (04.01.005) 05.01.001 After 1300 1 6 PM (?16C) 17C/18C 3 52 1 6 18C 4 20 04.01 05.01 Fabric/comments unclassified unglazed jar rim (?LMed, oxidized sandy fabric with iron oxide inclusions) Exeter fabric 60 tripod pitcher (M12C-E13C, green-glazed rim & body sherd with applied clay strip, comb decorated), chert-tempered cw (11C/12C, 1 sherd comb decorated) Med sandy ware jug sherd (?S. Somerset, 15C with brushed white slip and green glaze) S. Somerset cw (17C/18C) English industrial white wares (post 1800), English stoneware (19C), N. Devon plain yellow-glazed slipware (L17C-L18C x 1), S. Somerset yellow-glazed slipware scrap (?18C), S. Somerset combed sgraffito dish (L17CL18C), S. Somerset cw (16C x 1), S. Somerset cw (17C/18C), 1 sherd unclassified cw (?LMed) Creamware (1760-1820), S. Somerset cw (17C/18C) English brown stoneware (18C), S. Somerset copper mottled green-glazed slipware (18C pie crust dish rim), S. Somerset trailed slipware scrolls (1720-E19C), S. Somerset cw (18C). NB 12 sherds + 1 ridge tile frag in gritty fabric Martincamp flask sherd (16C), S. Somerset cw (17C/18C, 1 sherd buff fabric 18C), 2 Med sandy ware jug sherds (?S. Somerset, 15C, 1 rim sherd with broad strap handle) unclassified stoneware import (LMed, ?Siegburg, pale fawn fabric) S. Somerset cw (16C, sooted bowl rim), S. Somerset cw scraps (?16C) S. Somerset cw (17C/18C) Bristol/Staffs yellow-glazed slipware (18C), S. Somerset cw (17C/18C) S. Somerset cw (17C/18C) 05.01.002 17C/18C 1 4 Total 59 628 *feature no. in parenthesis. Deposits ending 001/002 are topsoil or subsoil layers 143 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Table 4.2: Section ATK medieval and later pottery summary. Quantities as sherd count and weight in grams. Site/plot Context Spot date Ct. Wt. (g) Fabric/comments 00.03 00.03.002 18C 1 10 Bristol/Staffs marbled slipware (18C) 02.07 02.07.001 1500-E19C 1 15 N. Devon gravel-free ware (?16C/17C) 03.01 03.01.002 17C/18C 2 6 S. Somerset cw (17C/18C scraps, worn sherds from same vessel) 05.01 05.01.001 17C/18C 2 19 S. Somerset cw (17C/18C) 07.02 07.02.002 17C/18C 1 12 S. Somerset cw (17C/18C) 07.05 07.05.001 17C 2 8 S. Somerset cw (17C) 11.04 11.04.001 L17C/18C 1 4 S. Somerset mottled copper green-glazed slipware (L17C/18C) 12.01 315.009 ?PM (?16C) 29 423 2 sherds S. Somerset cw (16C jug sherds from same (12.01.030) vessel, ,?intrusive), Med chert-tempered cw (11C-L14C, 27 sherds from same cooking pot) 12.09 12.09.000 16C-19C 103 1947 Range of ceramics from 16C-modern. Spanish Columbia plain tin-glazed (16C,1 bowl sherd), Cologne stoneware (1st ½ 16C, 1 jug sherd), Chinese porcelain (18C, 2 cup sherds), Westerwald stoneware (18C, chamber pot, 1 sherd), S. Somerset cw (16C, 1 sooted bowl sherd), N. Devon gravel-tempered ware (1 sherd), S. Somerset cw (18C/E19C, ,10 sherds), Notts stoneware (18C, 1 sherd), Creamware (1760-1820), English industrial white wares & earthenwares (L18C+), English stoneware (19C), 1 pantile frag (19C, 1 brick frag (modern). NB discard the majority but retain imports and 16C wares and representative samples of later material 12.10 316.001 17C/18C 2 8 S. Somerset cw (17C/18C 1 sherd), S. Somerset cw (?16C, 1 sherd) 12.12 12.12.000 Post 1800 8 88 English industrial white wares (post 1800), S. Somerset cw 18C), Saintonge yellow-glazed chafing dish (16C/17C, 1 sherd) unclassified unglazed PM sherd 12.12.002 18C 3 81 Notts stoneware (18C), Totnes-type cw (1500-L18C), unclassified sherd (?Med jug) 13.02 13.02.001 Post 1000 2 15 Med chert-tempered cw (11C-L14C) 13.02.002 Post 1800 106 1327 Mixed group of Post-med (16C-19C) & Med material with some interesting imports. Post-med Saintonge (1 chafing dish sherd, 1 cup sherd 16C/17C), Normandy stoneware sherd (16C/17C), Raeren stoneware sherd (16C), Werra type slipware dish sherd (L16C/E17C, with grey core), granitic derived micaceous cw (Breton/Portuguese, 16C), Dorset Verwood-type cw (PM), Coarse Sandy ware (1500-1650, 4 sherds), Totnes-type cw (16C-L18C), N. Devon gravel-tempered ware (1500-E19C), S. Somerset cw (16C, 2 sherds), S. Somerset cw (17C/18C), S Somerset sgraffito (17C), English industrial white wares & stonewares (post 1800). Med Saintonge (M13C-L15C, 3 sherds), Totnes-type Med cw (14C/15C jug), Med sandy ware jugs (M13C-L15C), Med chert-tempered cw (11C-L14C) 13.02.012 L17C/E18C 1 5 Westerwald stoneware jug (L17C/E18C) (13.02.010) 13.02.020 Post 1500 1 15 N. Devon gravel-tempered ware (1500-E19C) (13.02.010) 13.02.033 PM 11 207 S Somerset cw (16C/17C, 5 sherds), N. Devon gravel(13.02.268) free ware (1500-E19C), Saintonge green-glazed (M13CL15C, 1 sherd), Med sandy ware jug sherd (15C), Med chert-tempered cw (11C-L14C) 13.02.036 Post 1000 1 27 Med chert-tempered cw (11C-L14C, cooking pot rim) (13.02.035) 13.02.046 Post 1000 1 3 Worn body sherd scrap (?chert-tempered) (13.02.045) 13.02.054 M13C-L14C 16 155 Saintonge green-glazed (M13C-L15C, 3 sherds), Med (u/s) sandy ware jug sherd (M13C-L15C), unclassified Med cw sherd, unclassified Med jug fabric, Med chert-tempered cw (11C-L14C) 13.02.055 Post 1000 1 4 Med chert-tempered cw (11C-L14C) 144 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site/plot 13.02 13.02 © Cotswold Archaeology Context (13.02.125) 13.02.058 (13.02.125) 13.02.060 (13.02.073) 13.02.062 (13.02.073) Spot date Ct. Wt. (g) Fabric/comments 17C/18C 3 58 S. Somerset cw (17C/18C) 13C/14C 1 16 1250-1350 9 150 13.02.064 (13.02.073) 13.02.070 (13.02.073) 13.02.072 (13.02.067) 13.02.077 (13.02.125) 13.02.091 (void) 13.02.093 (13.02.073) 13.02.094 (layer) 13C/14C 4 62 Post 1000 5 3 Med chert-tempered cw (13C/14C, cupped type cooking pot rim) 5 sherds Exeter fabric 40 (1250-1350, 1 sherd with iron stripe), Exeter fabric ?42 sherd (M13C-L15C), Med cherttempered cw (11C-L14C) Dorset/Somerset sandy ware jug rod handle form (13C/14C), Med chert-tempered cw (11C-L14C) Med chert-tempered cw scraps (11C-L14C) 13C/14C 1 3 Bristol green-glazed sandy ware jug sherd (13C/14C) Post 1000 1 3 Med chert-tempered cw scrap(11C-L14C) Post 1000 2 5 Med chert-tempered cw scraps (11C-L14C) Post 1000 2 1 Med chert-tempered cw scrap (11C-L14C) 1250-1350 9 22 13.02.097 (13.02.174) 13.02.102 (13.02.087) 13.02.104 (13.02.271) 13.02.107 (subsoil) 13.02.108 (13.02.100) 13.02.110 (13.02.010) 13.02.112 (13.02.270) 13.02.114 (13.02.269) 13.02.116 (13.02.073) 13.02.120 (13.02.267) 13.02.122 (13.02.121) 13.02.134 (13.02.132) 1st ½ 16C 9 103 13C/14C 7 22 Saintonge green-glazed (M13C-L15C, 3 sherds), Exeter fabric 40 jug sherd (1250-1350, with iron stripe), Med chert-tempered cw (11C-L14C) S Somerset gritty ware (1450-1550), S Somerset cw (16C), Med chert-tempered cw (11C-L14C, 3 sherds) Calcareous-tempered cw (13C/14C, vesicular surfaces) 13C/14C 11 107 PM (?16C) 8 40 Post 1000 1 9 Med chert-tempered cw (11C-L14C), 8 sherds unclassified Med cw cooking pot base (all one vessel) 2 sherds S. Somerset cw (16C), 6 sherds Med cherttempered cw (11C-L14C) Abraded Med cw sherd PM (?16C) 2 48 2 sherds S Somerset cw (16C), 1 natural rock frag M13C-L14C 2 12 Post 1000 2 7 Saintonge green-glazed jug rim sherd, Med cherttempered cw (11C-L14C) Med chert-tempered cw scraps (11C-L14C) Post 1000 3 8 Med chert-tempered cw scraps (11C-L14C) 18C 4 146 S. Somerset cw (1 sherd 18C type) 15C/16C 1 7 Unclassified cw (15C/16C) M13C-L14C 66 255 13.02.135 (13.02.132) 13.02.140 (13.02.267) 13.02.152 (13.02.268) 13C/14C 115 396 16C 8 308 M-L17C 10 174 13.02.160 (13.02.159) 13.02.162 (13.02.161) 13.02.164 (13.02.163) 13.02.165 (13.02.132) Post 1780 1 2 Saintonge green-glazed jug (M13C-L15C, 23 sherds all one vessel, 1 sherd applied clay thumbed strip), unclassified Med cw (13C/14C) Med chert-tempered cw (13C/14C, 1 cupped type cooking pot rim) S. Somerset cw (16C, 1 sooted bowl), 3 sherds Med chert-tempered cw (11C-L14C) N. Devon sgraffito sherd (2nd ½ 17C), S. Somerset single line sgraffito sherd (17C), S. Somerset cw (17C, 4 sherds), Med Saintonge (1 sherd), Med chert-tempered cw (11C-L14C, 2 sherds) Transfer printed white ware (post 1780) + 1 rock frag Post 1000 4 14 Med chert-tempered cw (11C-L14C) Post 1000 4 30 Med chert-tempered cw (11C-L14C) 13C/14C 562 3764 Med chert-tempered cw (13C/14C, numerous cooking pot rims), calcareous-tempered cw, unclassified Med cw. 145 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site/plot © Cotswold Archaeology Context Spot date Ct. Wt. (g) Fabric/comments Fabrics and forms same as contexts 168, 169, 189 & 190 Med chert-tempered cw (11C-L14C) 13.02.167 (13.02.271) 13.02.168 (13.02.132) Post 1000 1 3 13C/14C 125 820 13.02.169 (13.02.132) 13.02.185 (13.02.132) 13.02.189 (13.02.132) 13.02.190 (13.02.132) 13.02.192 (13.02.163) 13.02.194 (layer) 13.02.202 (13.02.272) 13.02.208 (13.02.272) 13.02.212 (13.02.272) 13.02.223 (13.02.222) 13.02.242 (layer) 13C/14C 21 181 Med chert-tempered cw (13C/14C, cupped type cooking pot rim), calcareous-tempered cw (cupped type cooking pot rim), unclassified Med cw. Same as contexts 165, 168, 189 & 190 Fabrics and forms same as contexts 168, 169, 189 & 190 13C/14C 12 42 Med chert-tempered cw (13C/14C, reduced fabric) 13C/14C 459 3014 Fabrics and forms same as contexts 165, 168, 169 & 190 13C/14C 68 414 Fabrics and forms same as contexts 165, 168, 169 & 189 Post 1000 1 3 Med chert-tempered cw (11C-L14C) M13C-L14C 2 9 11C-L14C 14 103 Exeter fabric 40 (M13C-L15C), Med chert-tempered cw (11C-L14C) Med chert-tempered cw (11C-L14C, all one vessel) 13C/14C 2 7 Med chert-tempered cw (13C/14C, reduced fabric) 13C/14C 3 15 Med chert-tempered cw (13C/14C, reduced fabric) ?13C/14C 2 18 1250-1350 30 140 13.02.243 (13.02.132) 1250-1350 73 312 Post 1000 1 1 Post 1000 2 4 Med chert-tempered cw scraps (11C-L14C) 13.02 13.02.246 (13.02.244) 13.02.250 (13.02.251) 324.002 323.002 Med chert-tempered cw sherd (11C-L14C), ?calcareoustempered cw (?13C/14C) Saintonge green-glazed jug with applied thumbed clay strip (M13C-L15, 10 sherds all one vessel), Exeter fabric 42 (1250-1350, jug with white slip stripes), Med cherttempered cw Saintonge green-glazed jug with applied thumbed clay strip (M13C-L15, 29 sherds same vessel as context 242), Exeter fabric 42 (1250-1350, jug with white slip stripes, same vessel as context 242), Med chert-tempered cw Med chert-tempered cw scrap (11C-L14C) 17C/18C M13C-L14C 1 5 12 20 13.02 14.02 323.005 14.02.001 Post 1000 18C 1 3 6 12 14.04 14.04.000 19C 8 25 14.09 15.03 14.09.001 15.03.002 19C Post 1700 5 1 9 2 RVX 001 unstrat Post 1800 3 33 S. Somerset cw (17C/18C) Saintonge (M13C-L15C, 1 sherd), Exe fabric 40/42 (M13C-L15C worn sherd), Med chert-tempered cw (11CL14C) Med chert-tempered cw (11C-L14C) S. Somerset cw (17C/18C), unclassified unglazed earthenware (post 1700 ?flowerpot) English industrial white wares (19C), Chinese Porcelain (18C, 1 sherd) Transfer Printed white wares (19C) unclassified unglazed earthenware (post 1700 ?flowerpot) Transfer Printed white ware (post 1780), Creamware (1760-1820), unglazed tile frag (post 1800) Total 1995 15359 *feature no. in parenthesis. Deposits ending 001/002 are topsoil or subsoil layers 146 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Table 4.3: Section FTC medieval and later pottery summary. Quantities as sherd count and weight in grams. Site/plot Context Spot date Ct. Wt. (g) Fabric/comments 03.01 03.01.001 13C/14C 8 62 S. Devon micaceous Med cw (13C/14C, handmade, 1 jug handle) 04.01 04.01.002 16C-18C 3 192 S. Somerset cw (16C/17C x 1), S. Devon micaceous cw (16C-18C, 1 tripod vessel base, 1 unglazed sherd) 04.02 04.02 post 1780 3 67 Transfer Printed white ware (post 1780, English Porcelain (L18C+), S. Devon micaceous cw (16C-18C) 08.01 08.01.001 17C/18C 2 16 S. Somerset cw (17C/18C), S. Devon micaceous cw (16C-18C) 9.01 unstrat post 1550 1 3 Frechen stoneware (post 1550, body sherd) 9.02 unstrat post 1780 1 4 English industrial white ware (post 1780) 9.03 unstrat post 1550 1 10 Frechen stoneware (post 1550, jug handle) 12.05 13.02 12.05W.001 13.02 16C-18C 13C/14C 1 13 7 91 13.03 13.03.002 16C-18C 5 82 ?15C/16C 1 40 16C-18C 1 16 S. Devon micaceous cw (16C-18C) 16C-18C 16C-18C 1 2 42 124 L18C+ 3 12 15.02 13.03.022 (13.03.026) 13.03.032 (13.03.026) 14.01.002 14.01.011 (14.01.108) 14.01.074 (14.01.108) 15.02.001 S. Devon micaceous cw (16C-18C) Med chert-tempered cw (13C/14C, 1 cupped type cooking pot rim), Med calcareous-tempered cw (?Membury type, 13C/14C). NB similar to KennAylesbeare pipeline material. S. Devon micaceous cw (16C-18C, x 1), S. Devon micaceous cw (?15C/16C, unglazed wheel-thrown same vessel, x 2), S. Devon Med micaceous cw (14C/15C, unglazed wheel-thrown jug) ridge tile fragment micaceous fabric (?15C/16C) 16C-18C 1 9 16.09 16.09.001 E18C 4 11 24.03 24.10 24.03.002 24.10.002 L18C+ 1660-1700 1 1 2 6 25.01 25.01.002 25.01.006 (25.01.008) 25.01.007 (25.01.008) 16C-18C 16C-18C 11 2 138 132 S. Devon micaceous cw (16C-18C, bowl rim) S. Devon micaceous cw (16C-18C, internal green glaze) English industrial yellow-glazed earthenware (L18C+), unclassified cw (18C, x 1) S. Devon micaceous cw (16C-18C, internal green glaze) London delft decorated tin-glazed (1670-90, ?dish sherd ‘Chinamen among grasses’, x 1), English delft decorated (E18C, dish sherd), delft tin-glazed (earthenware body sherds only no tin glaze, x 2) English industrial green-glazed white ware (L18C+) N. Devon sgraffito (1660-1700, comb decorated dish, no distinctive design) S. Devon micaceous cw (16C-18C, 1 bowl, 1 jug/jar) S. Devon micaceous cw (16C-18C, 1 skillet handle) 16C-18C 38 496 26.01.005 (26.01.004) ?Med/PM 41 73 14.01 26.01 147 S. Devon micaceous cw (16C-18C, 1 chill, 5 sherds in total), N Devon gravel-free ware (PM, x 4 sherds), S. Devon Med micaceous cw (14C/15C, wheel-thrown jug all one vessel) 1 sherd S. Devon micaceous cw (16C-18C, internal green glaze, ?intrusive), 40 sherds S. Devon Med micaceous cw (14C/15C, same vessel as context 25.01.007) SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site/plot 30.03 Spot date post 1760 17C/18C Ct. 1 4 Wt. (g) 2 88 33.02 Context 30.03.004 30.03.006 (30.03.005) 33.02.002 post 1780 3 67 33.03 33.08 34.02 37.01 33.03.002 33.08.001 34.02.002 37.01.002 16C-18C ?LMed/PM L18C+ L17C/E18C 1 1 3 25 40 16 70 493 Fabric/comments Creamware (post 1760) S. Somerset cw (17C/18C, x 1), S. Devon micaceous cw (16C-18C, x 2), S. Devon micaceous cw (?LMed) English industrial white ware (post 1780, x 2), S. Devon micaceous cw (16C-18C, x 1) S. Devon micaceous cw (16C-18C, bowl rim) unclassified cw (?LMed/PM, unglazed base angle) South West micaceous (L18C/19C, large bowl rim), Westerwald stoneware (L17C/E18C, 1 jug sherd), unclassified earthenware (?Spanish Melado, internal & external glossy glaze, x 1), N. Devon calcareous cw (PM), N. Devon gravel-free ware (PM), S. Somerset cw (17C), S. Devon micaceous cw (16C-18C, bowls & 1 candle stick), St Germans-type cw (15C/16C, x 6 sherds) Raeren stoneware (16C, mug body sherd) Frechen stoneware jug base (17C, Bellarmine) 37.02 37.02.001 PM (?16C) 1 10 701 701 17C 1 64 Total Total 85 2485 *feature no. in parentheses. Deposits ending 001/002 are topsoil or subsoil layers 148 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 5: FIRED CLAY AND CERAMIC BUILDING MATERIAL BY VICTORIA TAYLOR Quantities of fired clay (265 fragments, weighing 734g) and ceramic building material (CBM) (201 fragments, weighing 26094g) were recovered. The fired clay is typically very fragmentary; the pieces small and rounded and providing few indications of original form or function. The ceramic building material is generally in better condition, with fragments large and identifiable to form. Material was recovered both by hand collection and by bulk environmental samples. The assemblage is summarised below according to the pipeline section (OTA, ATK and FTC) and is listed by site and context in table 5.1. ATK06 Aylesbeare to Kenn A total of 16 fragments (39g) of burnt/fired clay were recovered from three deposits, 12 of which were recovered from bulk samples taken from two Period 7 features from Site 13.02 (Table 5.1). All recovered material consists of small amorphous fragments for which original function is unclear. Quantities of ceramic building material (185 fragments, weighing 21906g) were recovered from 20 deposits. Almost all of the material was recovered from Period 8 (post–medieval) and Period 10 (undated) building disuse and collapse layers associated with the cob structure identified in Site 12.01. The large bulk of the Site 12.01 group consists of pantiles, suggesting a date for the re-roofing of the cob structure probably in the later 17th or 18th centuries. The pantiles are of the typical form, s-shaped in profile with a nib on the underside. The fabric is hard, of orange firing, sandy and with evidence for coarse moulding sand. Three brick fragments were recovered from Site 12.01 and might relate to the repair or alteration of the cob structure. Of note is a probable Flemish brick with characteristic dimensions (c. 170 x 80 x 35mm) and pale yellow/buff fabric. Bricks of this type were mainly imported during the 17th and 18th centuries (Allan 1984, 231– 2). FTC06 Fishacre to Choakford Quantities of fired clay (approximately 249 fragments, weighing 695g) were recovered from eleven deposits. The largest quantities of material were recovered by bulk samples from pit fill 16.07.030 (23 fragments, weighing 89g) and heat affected layer 16.07.009 (approximately 200 fragments, weighing 479g), part of an undated bowl furnace. Material from this section of the pipeline is restricted to quantities of fired clay from sites 16.07 and 16.01. OTA06 Ottery St Mary to Aylesbeare A total of 16 fragments (4188g) of ceramic building material were recovered from five deposits, four of which are from Site 3.07 (Table 5.2). Vitrified brick fragments were recovered from the topsoil and from the remains of a brick kiln (03.07.003). The remaining brick fragments are under–fired, possibly suggesting that these are wasters/rejects from this brick kiln. The bricks associated with the brick kiln from Site 3.07 appear to be handmoulded and are un-frogged. The recordable dimensions (110 x 60mm header) would suggest a date in the later 18th to mid 19th centuries. 149 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Statement of potential and requirements for further analysis The fired clay represents a small and fragmented group for which there is limited interpretive value. The existing records and reporting are considered sufficient for the purposes of the archive and no further work is recommended. The ceramic building material provides some broad indications of dating, in particular in respect to the cob structure identified from ATK 12.01. Similarly the few brick samples recovered from the brick kiln noted from OTA 03.07, are evidence for the ‘products’ and dating of this structure. It is recommended that a short report describing the material from these two sites be included in the eventual publication. Table 5.1. Ceramic Building Material from Ottery St Mary to Aylesbeare Site/Plot 03.01 03.07 Context 207.005 03.07.001 03.07.003 03.07.007 03.07.008 Description Fill of ditch 207.004 Topsoil Partial remains of brick kiln 03.07.003 Fill of land drain 03.07.007 Fill of land drain 03.07.008 Artefact Type tile vitrified brick brick, vitrified brick Prov Period 8 10 Ct. 3 1 Wt. (g) 66 230 10 5 2080 brick 10 3 554 brick 10 4 1258 Table 5.2. Ceramic Building Material from Aylesbeare to Kenn Site 12.01 Context 315.001 315.001 315.005 315.006 315.008 315.009 315.011 315.013 325.002 325.002 325.004 325.006 326.002 326.002 327.002 327.010 327.011 328.002 328.002 328.009 12.09.000 Wall collapse layer 328.002 Disuse/collapse layer 328.005 (12.01.030) Disuse/collapse layer 328.005 (12.01.030) Disuse layer 328.008 Disuse/collapse layer 328.009 (12.01.030) Topsoil 12.09.000 Topsoil 12.09.000 Topsoil 328.005 328.005 328.008 12.09 Description* Topsoil Topsoil Collapsed cob wall 315.005 part of 12.01.001 Collapsed cob wall 315.006 part of 12.01.001 Fill of 315.007 disuse spread within structure 12.01.001 (12.01.030) Wall collapse layer Fill of gully 315.014 Wall collapse layer 325.002 Wall collapse layer 325.002 Disuse/collapse layer 325.004 Disuse/collapse layer 325.006 Disuse/collapse layer 325 Disuse/collapse layer 325 Levelling/bedding layer for 327.001 Bedding layer for 327.001 Rubble/collapse layer Wall collapse layer 328.002 150 Type tile tile Prov period 9 9 Ct. 1 6 Wt. (g) 36 114 tile, pantile 10 13 406 pantile tile, pantile 10 8 2 17 90 827 tile, pantile pantile tile, pantile drainpipe tile, pantile pantile pantile tile, pantile misc frag tile, brick tile pantile tile highly vitrified brick Flemish brick 8 10 8 10 10 8 10 10 10 8 8 10 10 60 9 5 4 15 12 1 10 1 4 1 6 2 3796 728 378 952 992 1354 68 558 5 68 31 2007 326 10 1 489 10 1 945 pantile pantile 10 8 1 2 122 677 pantile tile, pantile brick with mortar modern drain 10 2 3 595 343 2 2389 1 3408 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 13.02 13.02.033 Secondary fill of ditch 13.02.031 13.02.033 Secondary fill of ditch 13.02.031 14.02 14.02.001 Topsoil *generic feature number in bold 151 misc frag from sample 117 brick tile 8 10 1 1 1 5 178 19 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 6: CLAY TOBACCO PIPE BY ED MCSLOY Small quantities of clay pipe fragments were recovered from each of the pipeline sections. The assemblage, comprising almost in its entirety stem fragments, is described in summary below according to section and listed by site in Table 6.1. Section OTA A small group of four fragments was recovered from four sites (Table 6.1). A bowl fragment from subsoil deposit 05.01.002 exhibits a line of rilling to its rim upper, a feature of bowl forms in the 17th and early 18th century (Oswald 1975). A ribbed bowl fragment from subsoil 206.002 (Site 3.04) is probably a 19th century form. The remainder, comprising stem fragments is broadly dateable, after c. 1550. Section ATK A total of 14 fragments (81 grams) were recovered, of which 10 relate to site 13.02. All of the recovered material comprises stem fragments, which for the most part are unfeatured and not closely dateable. An exception is a fragment from deposit 13.02.152 (the secondary fill of ditch 13.02.268) which features moulded foliate decoration. The decoration suggests a late 18th or 19th century date and there is a similar example from Exeter dated c. 1800–1820 (Oswald 1984, 290, fig. 161.96). Section FTC A total of four fragments was recovered from three sites. All comprise unfeatured stem fragments. Statement of Potential and Recommendations for further analysis The clay pipe assemblage is fragmentary and contains few diagnostic elements. Those few fragments from stratified deposits provide some broad indications of dating. This aside the assemblage can contribute nothing to the analysis stage and further work is not recommended. 152 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Table 6.1: Clay tobacco pipe summary. Section OTA Sub-total ATK Sub-total FTC Sub-total Total Site 04.01 05.01 Context 04.01.025 05.01.002 Count 1 1 Weight (g) 4 4 3.04 3.01 206.002 207.009 12.01 12.01 12.09 13.02 13.02 13.02 13.02 13.02 13.02 13.02 13.02 12.01.000 315.008 12.09.000 13.02.002 13.02.033 13.02.054 13.02.094 13.02.107 13.02.120 13.02.140 13.02.152 04.02 13.02.075 13.03.018 04.02 13.02.075 13.03.018 1 1 4 1 1 2 1 1 1 1 1 2 1 2 14 1 2 1 4 22 4 8 20 6 6 11 5 10 2 3 18 6 4 10 81 2 10 5 17 118 153 Comments/date stem Bowl, small fragment - rilled C17– eC18 rib-moulded bowl; C19 stem stem stem stem stem stem stem stem stem stem stem stems. 1 x moulded foliate dec. stem stem stem SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 7: THE COINS BY ED MCSLOY A total of three Roman coins, all from Site FTC 14.01 were recovered. The condition of all three is extremely poor and in their current state the coins are not fully identifiable. The coins were x-rayed as part of this assessment (Plate x10948), although these appeared to show little or no surviving detail beneath the corrosion. Registered artefact no. 1 from Period 5 deposit 14.01.039 (fill of pit 14.01.038) actually comprises fragments from two coins. Both are radiates, the reverse of each showing standing figures, although neither can be further identified. Dating in the mid/later 3rd century is likely. The purplish corrosion products exhibited by one of these coins suggests an appreciable silver content and this may indicate dating early in the given range. The third coin, registered artefact 9, is from Period 5 deposit 14.01.046 (the primary fill of terrace 14.01.012). This is also fragmentary and of the same general form as the others. The reverse figure in this instance is identifiable as Pax and Ra. 9 is probably a radiate copy of the period c. AD 260–80. Statement of Potential and Recommendations for Further Analysis The coins are of some, limited significance as dating evidence for Roman deposits recorded from FTC site 14.01; the later 3rd century dating and absence of 4th century issues helping to refine the dating for the site prompted by the pottery. Cleaning by a specialist conservator is recommended in an attempt to fully identify the coins. A coin list, noting what details as can be ascertained from cleaning, or at the least those recorded here, should be included in any publication. Conservation GBP 100 Identification/reporting 0.5 day 154 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 8: OBJECTS OF METAL BY VICTORIA TAYLOR Introduction Items of metal were recovered from each of the pipeline sections (OTA, ATK and FTC). In total, 225 items, comprising 210 of iron, four of copper alloy and 13 of lead were examined (Table 8.1). All items were recovered by hand, excepting one iron nail from ditch fill 13.02.140, which was recovered following processing of bulk environmental samples. A large proportion of the ironwork was recovered from topsoil and subsoil deposits. This material is commonly fragmentary and unidentifiable to form or function and it is proposed that this material be discarded following assessment. Iron and copper-alloy items not identifiable as nails or modern objects were x-rayed for this assessment (Archive Plates 10395, 10945-10949, 10950-10954). Preservation varies among objects with the majority, particularly those made of iron, being heavily corroded. All items are stored as appropriate with dessicating silica gel and humidity level scales. The assemblage is described in summary below according to section of the pipeline and is listed by site and context in tables 8.1–3. ATK06 Aylesbeare to Kenn (Table 8.1) A total of 167 items, including 150 of iron, four of copper-alloy and 13 of lead were recovered. The majority consists of modern material or fragmentary, undateable objects from topsoil or subsoil type contexts (Table 8.1). Little from this material merits further comment. A single item, a copper-alloy fragment is associated with prehistoric activity in Site 14.09. This is a copper-alloy object, possibly a pin shaft (Ra 2), recovered from the truncated fill of Period 3 pit 14.09.007. The condition of this object is poor, with corrosion disrupting the entire surface. The x-ray shows no decoration or other details of form. A whittle tang iron knife blade was recovered from Site 13.02 Period 7 pit fill 13.02.162. X-rays revealed the presence of white metal, likely to be plating or inlay, around the shoulder of the blade. Cleaning of this item and xrf analysis will assist with further investigation of this object. Horseshoe fragments, most of which are unidentifiable to form, were recovered from six contexts from sites 10.02, 13.02, 14.03 and 315. Of note is a complete horseshoe from topsoil 10.02.002 which is similar in style to examples of Clark type 4 shoes which generally date to the later medieval period (Clark 1995, 96). Lead strips, identifiable as window flashing of probable post-medieval date, were recovered from three contexts from Site 12.01. An unidentifiable lead object was recovered from site 13.02 Period 8 ditch fill 13.02.120. OTA06 Ottery St Mary to Aylesbeare A total of 20 items, all of which were iron, were recovered from four deposits relating to three sites (Table 8.1). Little among this material is noteworthy. Two horseshoe fragments were recovered from topsoil/subsoil deposits from sites 1.01 and 3.02. That from Site 1.01 is identifiable as of Clark’s type 4 and thus probably of later medieval date (Clark 1995, 96). 155 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology FTC06 Fishacre to Choakford A total of 40 items, all of iron, were recovered. Iron finds from topsoil/subsoil deposits are modern and do not merit further comment. Six items were recovered from Roman deposits identified from Site 24.03, with additional, single items from Roman dated deposits from sites 7.01 and 14.01. The only identifiable objects of possible Roman date other than nails consist of blade fragments from fill 24.03.025 of pit 24.03.024 and fill 07.01.011 of ditch 7.01.007. Neither blade demonstrates any evidence for inlay/plating or features enabling classification or dating. Statement of Potential and Requirements for Further Analysis Two items of interest (the knife blade from pit fill ATK 13.02.162 and the copper-alloy pin shaft from deposit ATK 14.09.007. merit publication to include catalogue description and illustration. Specialist cleaning of both items is recommended to assist with their drawing and recording. In view of the possible Bronze Age dating for the copper-alloy fragment, it is recommended that XRF analysis be undertaken (prior to conservation) to determine the metal composition. XRF analysis (to be undertaken by David Dungworth of English Heritage) is recommended to the iron knife to determine the nature of the white metal ornamentation seen from the x-ray. It is recommended that items from topsoil and subsoil deposits be discarded as the recording in this assessment is considered sufficient for the purposes of the archive. A brief descriptive catalogue should be prepared for all other items. Present packaging should be maintained to reduce the risk of deterioration 156 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 8.1. Summary catalogue. ATK06 Items of metal Site/plot 07.03 12.01 12.09 Context 07.03.002 07.03.002 315.001 Description Subsoil Subsoil Topsoil 315.005 Collapsed cob wall 315.005 part of 12.01.001 315.006 Collapsed cob wall 315.006 part of 12.01.001 315.008 Period 9 type CuA Obj Fe Obj Fe Obj Ct. 1 2 6 Wt. (g) 28 16 32 Comments Modern coil Sheet, thin nail 8 x unident frag, 1 x nail shaft X-ray 10953 10955 10 Fe nail 2 19 1 x long thin nail 1 x staple - 10 Fe Obj 1 32 nail G2 10952 Fill of 315.007 8 Fe Obj 2 360 rear, modern(?) horseshoe, strip(hinge/bracket?) - 315.009 Natural disuse spread within structure 12.01.001 8 Fe nail 2 8 1 shaft, 1 G1 - 315.009 Natural disuse spread within structure 12.01.001 8 Fe nail 6 134 1 x screw, 5 x nail= 2 x shaft, 1 x G7, 2 x nail - 315.009 315.012 325.002 325.002 325.004 325.004 326.002 326.002 327.011 328.002 328.005 328.005 325.004 328.002 328.005 12.09.000 12.09.000 10.02.001 12.09.000 spread within 12.01.001 Wall collapse layer Wall collapse layer 325.002 Wall collapse layer 325.002 Disuse/collapse layer 325.004 Disuse/collapse layer 325.004 Disuse/collapse layer 325 Disuse/collapse layer 325 Rubble/collapse layer Wall collapse layer 328.002 Disuse/collapse layer 328.005 Disuse/collapse layer 328.005 Disuse/collapse layer 325.004 Wall collapse layer 328.002 Disuse/collapse layer 328.005 Topsoil Topsoil Topsoil Topsoil 8 10 10 10 8 8 10 10 10 10 10 10 8 10 10 Fe Obj Fe Obj Fe Obj Fe Obj Fe Obj Fe Obj Fe Obj Fe Obj Fe Obj Fe nail Fe Obj Fe Obj Pb Obj Pb Obj Pb Obj CuA Obj CuA Obj Fe Obj Fe Obj 1 1 3 8 1 6 4 1 1 4 2 2 2 9 1 1 1 1 1 1114 6 328 70 30 442 294 515 660 38 512 65 20 73 13 70 30 191 400 modern chain nail g7 2 x nail G2, 1 x obj (mod?) 2 x shaft, 1 x bent shaft poss obj, 1 x thin nail unident obj 4 x unident, 2 x strip cast iron, decorated - to discard cast iron, decorated - to discard modern agricultural object 1 x shaft, 2 x G2, 1 x G7 cast iron - modern obj, nail ?window flashing, lead strips lead strips lead strip pocket watch-modern cua strip horseshoe Clark type 4 bent strip 10953 10953 10952 10953 10950 10939 10951 - 157 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site/plot Context 12.09.000 12.09.000 12.09.001 Description Topsoil Topsoil Subsoil 12.12 13.02 12.12.000 13.02.002 Topsoil Subsoil 13.02.002 13.02.002 14.03 14.04 14.09 14.09 Period type Fe Obj Fe Obj Fe Obj Ct. 2 6 1 Wt. (g) 1686 294 200 Comments subsoil, modern agric. Implement I x mod? Obj. 3 x G2?, 1 x shaft, I x unident obj peg X-ray - 8 Fe Obj Fe Obj 13 8 312 77 6 x G2, 1 x obj wedge?, 2 x bent obj, 3 x un obj I x G1, staple, blade frag, 3 x shaft, obj - Subsoil Subsoil 8 8 Fe Obj Fe Obj 18 8 553 23 2 x G2, 3 X horseshoe frag, 1 x hinge, nails x 11, 3 x ob I x unident obj, broken in 2 10949 - 13.02.033 13.02.046 13.02.077 Secondary fill of ditch 13.02.031 Fill of pit/post hole 13.02.045 Fill of ditch 13.02.076 8 10 7 Fe Obj Fe Obj Fe Obj 1 1 1 8 134 18 nail poss G1 unident. Obj/strip nail 10951 10949 13.02.094 13.02.097 13.02.120 13.02.120 13.02.120 13.02.140 13.02.140 Medieval build-up horizon Fill of pit 13.02.174 Third fill of ditch 13.02.117 Third fill of ditch 13.02.117 Third fill of ditch 13.02.117 Fill of ditch 13.02.139 Fill of ditch 13.02.139 7 8 8 8 8 8 8 Fe Obj Fe Obj Fe Obj Fe Obj Pb Obj Fe Obj Fe Obj 2 2 2 2 1 1 1 189 153 98 24 14 10 9 1 x G12, 1 x bent strip with joining strip horseshoe frag, unident obj 1 x nail G1, 1 x unident obj 1 x nail shaft, 1 x nail poss G1 unident. Lead object nail poss G1 nail g1 from sample 115 10951 10953 10953 10953 - 13.02.152 13.02.162 13.02.171 14.03.001 14.04.000 14.09.001 14.09.007 Secondary fill of 13.02.150 Fill of pit 13.02.161 Fill of pit 13.02.170 Topsoil Topsoil Topsoil layer 14.09.001 Truncated pit 8 7 10 10 Fe Obj Fe Obj Fe Obj Fe Obj Fe nail Fe nail CuA Obj 3 1 2 1 21 2 1 70 26 76 110 35 16 1 2 x nails G1/2, G2, obj knife horseshoe frag x 2 horseshoe frag 1 x nail shaft and lots of frags broken off it Long thin nail bent at one end pin shaft Ra. 2 10952 10952 10952 10951 10939 ditch 9 4 158 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 8.2. Summary catalogue. OTA06 items of metal Site/plot 01.01 3.01 Context 01.01.002 207.005 Description Subsoil Fill of ditch 207.004 Period 10 type Fe Obj Fe Obj Ct. 1 12 Wt. (g) 142 18 Comments horseshoe frag poss type 4 unident. Strips/nail shafts X-ray 10946 10946 3.01 207.007 Fill of ditch 207.006 9 Fe Obj 1 6 nail shaft - 03.02 03.02.001 Topsoil - Fe Obj 6 237 horseshoe frag. ring. nail head G2, unident obj - Table 8.3. Summary catalogue. FTC06 items of metal Site/plot 02.02 04.02 07.01 12.05w 14.01 24.03 30.03 Context 02.02.001 04.02 07.01.011 12.05w.001 14.01.011 14.01.084 24.03.025 24.03.037 Description Topsoil Subsoil Fourth fill of ditch 07.01.007 Topsoil Fill of ditch 14.01.010 Fill of terrace 14.01.083 Fill of pit 24.03.024 Primary fill of pit 24.03.036 Period 9 9 5 9 8 5 5 5 type Fe Nail Fe Obj Fe Obj Fe Nail Fe Obj Fe Obj Fe Obj Fe Obj Ct. 1 1 2 3 25 1 3 1 Wt. (g) 7 22 28 7 14 8 16 39 Comments nail, G type unident Modern heel plate blade G2 fe wire (barbed)/thin nails? nail shaft possible blade or strip nail G12 X-ray 10948 10948 10948 10946 24.03.071 24.03.075 30.03.006 Secondary fill of pit 24.03.041 (same as 043) Primary fill of ditch 24.03.074 Fill of ditch 30.03.005 4 5 8 Fe Obj Fe Obj Fe Nail 1 1 1 2 62 56 nail shaft lump long nail with round section 10948 10948 10948 159 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 9: GLASS BY VICTORIA TAYLOR AND ED MCSLOY Glass objects comprising four beads and small quantities of vessel and window glass were recovered from each of the pipeline sections. Small beads (two) from ATK Site 1302 and FTC Site 24.03 were recovered following processing of bulk soil samples. The remainder of the assemblage was hand-recovered. The assemblage is described in summary below according to section and listed by site in Table 9.1. Ottery St Mary to Aylesbeare A single small chip of post-medieval or modern green bottle glass was recovered as an unstratified find from evaluation trench 209 in Site 2.06. Aylesbeare to Kenn This section produced the largest quantity of material, relating to 10 ‘sites’ (table 9.1). The bulk of material which includes vessel and window glass was recovered from topsoil or subsoil type deposits. A small, black, annular glass bead was recovered from site 13.02 Period 7 sunken floored building 13.02.196 (soil sample 157). This bead is similar in form to the miniature dark type as described by Brugmann (2004) which is often associated with Late Roman deposits. As such this is very likely a residual find. Among the window glass is a small fragment of green glass with one grozed edge which probably represents part of a diamond-shaped quarry from a leaded window and this probably dates to the 16th or 17th centuries. This fragment, from Trench 315 (part of site 12.01) may relate to cob structure identified from this location or to material stored within. The remainder of the window glass consists of thin, clear glass of relatively recent age (late 18th to 19th century of later). Quantities of thick-walled, blown green wine/spirits bottle glass include fragments with wide-base diameter and high basal ‘kick’ (from deposits 12.09.000; 13.02.120). These fragments aside, which probably date to the mid/later 17th or early 18th centuries, the vessel glass is modern. Fishacre to Choakford Glass beads of Roman type were recorded from sites 24.03 and 2.02. A small yellow–brown, cylindrical bead was from bulk sample 017 taken from pit 24.03.089, (24.03.090) is likely to be Late Roman in date (Guido 1978, 94). A large blue globular bead from Period 9 topsoil 02.02.001 is similar in form to Guido’s Group 7 undecorated globular beads which mainly date to the Roman period, although a later date is suggested for some examples (Guido 1978, 70). A small globular bead with blue, white and red chevron decoration was recovered from site 16.08 Period 10 ditch 16.08.006 (fill 16.08.007). This is identified as a north Italian (Venetian) chevron bead, used in trade from the 15th century but probably most common in the 17th century (Hume 1969, 53). Further research into the origin of this bead is recommended. A total of 11 fragments of vessel and window was recovered from six sites (Table 9.1). The base of a small bottle or pharmaceutical phial from site 25.01 subsoil deposit 25.01.002 probably dates to the mid 17th to earlier 18th centuries. The remainder is probably modern (19th century or later). Of some interest is a green bottle glass 160 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology fragment (unstratified from site 09.03) which features a scratched script graffito, probably a personal name (table 9.1). This is thought unlikely to predate the 19th century. Statement of Potential and Recommendations for further analysis The glass beads provide some additional evidence for dating. Additionally the North Italian bead from FTC Site 16.08 is of interest as evidence for reasonably exotic trade items, rare outside of the major port towns of the area in the post-medieval period. It is recommended that each of the beads should be drawn and a brief catalogue prepared. The beads aside, the assemblage includes nothing of intrinsic interest and represents a widely dispersed, modern group. For such reasons, recording undertaken as part of this assessment is regarded as sufficient for the purposes of the archive, and additional analysis of the window/vessel glass is not recommended. 161 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 9.1: Vessel and window glass summary. Section OTA Sub-total ATK Sub-total FTC Site 2.06 Context Tr 209 u/s Weight (g) 1 1 48 Type bottle Comments/date u/s Count 1 1 2 RVX 001 12.09 12.09 12.09 12.09 12.12 13.02 13.02 14.04 14.04 14.09 14.09 14.09 12.01 12.01 12.01 12.01 bottle 12.09.000 12.09.000 12.09.000 12.09.000 12.12.000 13.02.120 13.02.203 14.04.000 14.04.000 14.09.001 14.09.001 14.09.001 315.001 315.001 315.005 315.005 2 2 2 2 1 2 1 1 1 1 1 1 2 1 1 1 22 125 2 4 12 46 <1 4 4 3 7 7 2 4 2 1 bottle bottle molten window bottle bottle bead vessel bottle window bottle bottle window window window window 12.01 12.01 12.01 12.01 12.01 12.01 12.01 12.01 12.01 315.009 315.009 315.011 325.002 325.004 326.002 327.010 328.002 328.005 02.02.001 09.03.000 7 7 20 2 8 7 2 11 2 359 4 20 window bottle bottle window window window window window window 02.02 09.03 5 1 1 3 3 6 2 5 1 51 1 3 mod.pale green with base legend ]& R[ pale green; modern green; 2 x base with kick; pmed clear clear; modern clear; small condiment bottle green; 1 x with base kick; pmed Miniature, black clear, stemmed vessel base green, unfeatured clear, grozed; mod. green, unfeatured clear, moulded rim; mod. green; pmed. clear; mod. clear, grozed; modern green diamond light type grozed; pmed. clear; mod. green, base frag. Pmed/mod. green, unfeatured. Pmed/mod. clear; mod. clear; mod. mod. clear; mod. clear; mod. modern 13.03 16.08 13.03.016 16.08.007 2 1 47 2 vessel bead 24.03 25.01 30.03 24.03.090 25.01.002 30.03.004 30.03.006 33.02.002 34.08.00 1 1 1 1 1 2 14 66 1 10 3 23 8 3 121 481 bead vessel window bottle bottle window 33.02 34.08 Sub-total Total bead bottle 162 globular, blue green; 1 x two line graffito: ?]ny[;]wton[. ?C19 clear ; paste bottle; mod. blue, red and white chevron bead small cylindrical yellow/brown green; phail - high kick green: pmed? green pale green clear; mod. SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 10: METALWORKING RESIDUES BY DAVID STARLEY Summary Excavations and watching briefs along the three sections of gas pipeline in south Devon identified a number of metalworking features, one of which has been shown to be of Iron Age date. Examination of 22kg of bulk debris confirmed the major activity to be iron smelting together with some smithing. Most material (3 boxes, 22kg)) of the industrial debris examined in this report was collected by hand during the excavation. The remaining material (1 box, 7kg) consists of “magnetic residues” extracted from soil samples taken for environmental purposes. Three boxes of metalworking debris, containing 22kg of bulk slag were visually examined. This material was classified into the standard categories based on those used by the former English Heritage Ancient Monuments Laboratory. Visual observation of the exterior was backed up by examination of fresh fracture surfaces, the use of a geological streak plate and magnet. The detailed breakdown of debris, by context is attached as Appendix 1. Table 1 presents a summary of these findings, based on the categories used and the metalworking or other activities which are implied by the debris. Assemblage Description Some forms of slag are visually diagnostic, providing unambiguous evidence for a specific metallurgical process. Surprisingly, very little of the debris from Devon Pipeline could be classified in this way. By far the majority of the debris is less distinctive and it is not always possible to determine which metallurgical, or other high temperature process, individual pieces derive from. When the assemblage as a whole is studied however a more balanced picture might be gained. Despite this some categories such as “undiagnostic ironworking slag” might equally derives from either smithing or smelting. There is no suggestion of non-ferrous metalworking, but some debris may derive from other high temperature processes. 1. Diagnostic – iron smelting For the majority of all, pre-industrial iron smelting furnaces, tap slag is the most commonly occurring smelting debris. This is of fayalitic (iron silicate) composition. It is formed as a result of a reaction between some of the iron and the silica-rich gangue materials in the ore. Because it has a melting range below that of the hotter regions of the furnace, it is formed as a liquid and flows to the base of the furnace until released through the tapping arch. Characteristically it is dense and solidifies with a rope-like flowed morphology on its upper surface and low vesicularity at its fracture surfaces. For Devon Pipeline just one fragment of this material was found. However, a material which is normally a far less common waste product from smelting furnaces: fayalitic run slag, was present in substantial quantities. The implication from this is that iron smelting furnaces did not correspond to the better known slag tapping form. A large piece of slag was classified as furnace bottom, though it is small in comparison with those associated with (later) slag block furnace technology. Material classed as possible ore, was iron-rich stoe, which judging by density and colour, might have provided a viable ore. Significantly, however, the distribution of this on the Devon Pipeline excavations rules this out, as will be discussed below. 2. Diagnostic – iron smithing Evidence for iron smithing comes in two forms; bulk slags and micro slags. Of the bulk slags, the most easily recognisable are normally the smithing hearth bottoms which typically have a characteristic plano-convex section, with a rough convex base and a vitrified upper surface which is flat or even slightly hollowed as a result of the downward pressure of air from the tuyère. Compositionally, smithing hearth bottoms are predominantly fayalitic (iron silicate) and form as a result of high temperature reactions between the iron, iron-scale and silica from either 163 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology the clay hearth lining or possibly sand used as a flux by the smith. The three examples from Devon Pipeline were far from uniform or typical and it is possible that some or all of these are also waste products of a smelting furnace. In addition to bulk slags, iron smithing also produces micro slag of two types (Starley 1995): Flake hammerscale consists of fish-scale like fragments of the oxide/silicate skin of the iron dislodged during working. Spheroidal hammerscale results from the solidification of small droplets of liquid slag expelled during hot working, particularly when two objects are being fire-welded together or when the slag-rich bloom of iron is first worked into a billet or bar. Hammerscale is considered important in interpreting a site not only because is highly diagnostic of smithing but, because it tends to build up in the immediate vicinity of the smithing hearth and anvil, it may give a more precise location of the activity than the bulk slags which may be transported elsewhere for disposal. 3. Undiagnostic – ferrous metalworking The largest category of material, found almost entirely at FTC, was that recorded as undiagnostic ironworking slag. Such irregularly shaped fayalitic slags are produced by both iron smelting and iron smithing processes and it is not possible to determine which process was involved. Dense iron working slag has the appearance of fragments of a larger more massive block of material and is also considered to be undiagnostic. Iron-rich cinder was distinguished by its significant content of iron not chemically combined as silicates, but visible as rust-orange coloured hydrated iron oxides and iron hydroxides. It would also normally be considered undiagnostic, except where other evidence points only to a single activity. 4. Undiagnostic – metalworking or other high temperature process Several of the categories of material can be produced by a wide range of high temperature activities and are of little help in distinguishing between these processes. Material listed as vitrified hearth/furnace lining may derive from either iron working or, particularly if fragments showing brightly coloured glazes or copper alloy corrosion, from non-ferrous metal working. This material forms as a result of a high temperature reaction between the clay lining of the hearth/furnace and the alkali fuel ash or fayalitic slag. It may show a compositional gradient from unmodified fired clay on one surface to an irregular cindery material on the other. A material associated with vitrified lining was classed as cinder. This comprises only the lighter portion of this, a porous, hard and brittle slag formed by the reaction between the alkali fuel ash and fragments of clay that had spalled away from the heath/furnace lining, or another source of silica, such as the sand sometimes used as a flux during smithing. The small amount of fired clay without any surface vitrification, found within the assemblage could have derived from structures associated with metallurgical purposes, or from those used for other high temperature activities and the burned stone may well derive from non-metallurgical processes. 5. Non slag Certain pieces of ‘slag’ were shown by their cracked surfaces and testing with a magnet to contain significant amounts of metallic iron. These iron lumps may well include waste fragments from the smithing process or perhaps products of a local ironworker. A single piece of stone did not appear to be metallurgically significant... 6. Fuel No individual pieces of coal, coke or charcoal were recorded. However, impressions of the latter were commonly encountered in the undiagnostic ironworking debris, suggesting that this was the usual fuel for working iron. The Evidence From Magnetic Residues 164 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology As discussed above, hammerscale provides an important indicator of the location and extent of iron smithing on the site. Residues from environmental samples had a magnet passed through them and the material collected and a total 0f 7.1kg was examined by the specialist. These often quite substantial samples were weighed and visually examined for the presence of both spheroidal and flake hammerscale (Table 10.7). On first examination many of these residues did appear to contain a high proportion of small flat platelets which adhered strongly to a magnet and resembled flake hammerscale. However, close examination suggests that they almost entirely consist of natural shale-like material which has been strongly heated together with some burned clay. As a result the, naturally present, iron has been converted to magnetite and hence the material’s magnetic qualities. It was considered whether this material might be a waste product of ore roasting, but its widespread presence on site suggests more general burning processes. Occasional spheres within the samples are likely to have similar origins Amongst the burned natural material, however, a number of samples were found to contain a small proportion of true hammerscale and the significance of this is discussed within the context of each pipeline stretch. Breakdown Of Metalworking Activity By Pipeline Section Ottery St Mary to Aylesbeare Table 10.3 shows the total mass of bulk debris grouped by activity and by phase for the Ottery St. Mary to Aylesbeare section. In addition magnetic residue from 20 contexts totalling 259g were examined with no positive identification of hammerscale. There is almost nothing of metallurgical significance in the OTK assemblages. A couple of contexts (0207.07 and 03.04.02, both modern) produced stray fragments of undiagnostic ironworking debris. Some pieces of stone were considered as possible ores, on the basis of an apparently high iron content, but no supporting evidence in the form of structures or waste products was identified. Although magnetic residues were collected these are considered to result from the heating of natural material, such as the mudstone recorded as underlying many of the sites on this section of pipeline. Aylesbeare to Kenn In Table 10.4 the bulk debris for the Aylesbeare to Kenn section is grouped by activity and by phase. Magnetic residues from 79 contexts, totalling 370g were also examined without the identification of any hammerscale. The Aylesbury to Kenn assemblage produced only tiny fragments of bulk debris and it is likely that most of this, and all of the magnetic residues derive from the heating the natural, iron-rich sedimentary stone, such as the Aylesbeare mudstone, recorded as the underlying geology for many of the sites on this stretch. Fishacre to Choakford In Table 10.5 the bulk debris for the Fishacre to Choakford section is grouped by activity and by phase. Magnetic residue from 117 contexts, totalling 6484g were also examined of which only two, 24.03.044 and 24.03.090, produced hammerscale (see Table 10.2). The evidence for metalworking in the form of slag from the Fishacre to Choakford section of pipeline was far more extensive than elsewhere on the pipeline and generally supports the interpretation of the excavated structural remains. 165 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Two undated features in the west end of field 12.05 were identified during the watching brief as possible either cremation pits or bowl furnaces. Fill 12.05W.007 of pit 12.05W.004 in particular included over 2kg of metalworking debris, suggesting that the function was indeed metalworking. The actual activity though was not unambiguous. Most of the debris proved to be undiagnostic ironworking slag. A possible smithing hearth bottom suggested smithing. However, no hammerscale was reported in the fill (although sample 239 appeared more cindery than other magnetic residues). The presence of some fayalitic run slag probably provides the correct identification of this feature as the base of a smelting furnace but the lack of any lining material is unusual. Very small amounts of debris associated with the Romano-British ditch 14.01.106 (Site 14.01) were insufficient to more than suggest ironworking in this area during that period. Site 16.07 produced the most striking and important evidence of metalworking. The context sheet descriptions provide sound case for the identification of feature 16.07.008 as the remains of an iron smelting furnace. A 0.22m deep 0.8m by 0.53m wide pit contained a clay lining. The colouration of the lining is described as mid greyish brown, which would indicate to reducing conditions, as are required in a smelting furnace. Discolouration of the natural ground around the furnace also suggests prolonged high temperature running. Within the furnace the fills were reported to contain charcoal and “brittle metal” which is presumably the slag supplied to the specialist. Examination of the nearly 4kg of slag from these fills found more than 2kg to be classified as fayalitic run slag. In the base of the furnace, in layer 16.07.010, one of the largest pieces of slag found during the project, a furnace bottom remained in situ. The size of this is however modest in compared to slag block technology best known from eastern counties in the Saxon period. In accordance with the date of 391-210 Cal BC from fill 16.07.016, the surviving furnace remains closely parallel others of Iron Age date, although this structure and most others are clearly heavily truncated compared with their original construction. The purpose of a small pit 16.07.004 immediately north of the furnace was unclear, no debris having been identified within it. A further small elongated pit, 16.07.019 also contained no slag, but the mid reddish brown colouration of the fills with further reddish patches and charcoal flecks may suggest that this feature may have been associated with the roasting or storage of previously prepared ore. To the western end of site 16.07 a more extensive cluster of furnace bases was found, often intercutting each other, together with a number of pits containing metalworking debris. These were analysed individually. Features identified as bowl furnaces: 16.07.021 (0.86m x 0.42m x 0.28m deep). Of sub-rectangular form with dark orange brown lining and reported to contain charcoal and slag. Fill 16.07.023 includes the only piece of slag classed as tap slag, together with fayalitic run slag and undiagnostic ironworking slag totalling 433g. 16.07.024 (0.70m x 0.30m x 0.30m deep, but partly cut away by 16.07.028). Contains very small amount (4g) of fayalitic run slag in fill 16.07.026. 16.07.040 ( 0.28m dia. x 0.07m deep) A shallow cut feature containing burned clay lining, largely in situ, of which over 1.7kg was examined and classed as vitrified hearth/furnace lining. Smaller quantities of run slag and undiagnostic ironworking slag were found within lining 16.07.041 and fill 16.07.042. 166 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 16.07.049 (0.53m wide x 0.15m deep). Burned natural showed that this feature had been used for heating. The fill (16.07.051) contained 1190g of undiagnostic ironworking slag 16.07.052 (greater than 0.35m wide x 0.35m deep). It is not entirely clear whether the vitrified lining found within this feature was only the result of heating the natural clay sub soil, or of an inserted lining. In either case the feature was used for heating. The recorded dark-red purple colour of the lining suggests an oxidizing process, such as ore roasting rather than smelting, despite the apparent depth of the feature. Debris examined from its two fills consisted entirely of vitrified hearth lining, totalling 0.5kg, with no fayalitic slags. 16.07.055 (0.70m x 0.60m x 0.40m deep). Again there is uncertainty as to whether the heat affected material lining the pit was deliberately applied clay or the natural clay-rich sub soil. Interestingly, the lower fill, 16.07.057, contained a high proportion of clearly smelting debris, whilst the upper contained some possible smithing evidence in the form of a possible smithing hearth bottom and hammerscale. This raises the possibility that, after the initial removal of the bloom the same structure was used to reheat it for consolidation purposes. 16.07.077. This furnace base is reported to have been cleaned out and reused with a new lining (16.07.44.) Two of the fills of this furnace proved very rich in slag. In the lower fill, 16.07.046, fayalitic run slag, diagnostic of smelting dominated the nearly 1.4kg total. In the upper, 16.07.047, the 2.3kg total included less run slag but more hearth/furnaces lining and more undiagnostic ironworking slag. Hoverer it also contained some hammerscale, suggesting, as for furnace 16.07.055, that this smelting furnace was also used for smithing, perhaps to consolidate the bloom immediately after its removal from the furnace. Features identified as pits (due to lack of fired lining): 16.07.017: no metalworking debris. 16.07.033: a very small amount of undiagnostic ironworking slag and burned stone were found within fill 16.07.034. 16.07.035: no metalworking debris. 16.07.037: this elongated shallow feature, oriented north/south with heat affected (red oxidized) lining at north end, might have functioned as an ore roasting pit but the 0.5kg of slag within it was classed as undiagnostic ironworking slag, from either smelting or smithing. Further to the west, Site 24.03 provided further metalworking evidence of a different kind. Two pit fills, 24.03.044 (pit 24.03.041) and 24.03.090 (pit 24.03.089) yielded the only two magnetic residues to contain unambiguous evidence of smithing in the form of flake hammerscale. A further feature of this site, 24.03.095, was described as a possible metal working surface although no slag or residues were available for study to confirm this. The pit fills associated with the site, including those containing the hammerscale, produced a scattering of slag, undiagnostic, but probably associated with smithing. Dating of this activity is less clear. The metalworking surface was considered to be Roman on the basis of several ceramic sherds. Pits 24.03.041 and 24.03.089 are also provisionally dated to this period. Conclusions Twenty-two kg of bulk metalworking debris together with seven kg of magnetically extracted sieve debris was examined. No significant amounts of metallurgical debris were identified from the Ottery St Mary to Aylesbeare (OTA06) or Aylesbeare to Kenn (ATK06) sections. The Fishacre to Choakford Gas Pipeline (FTC06), however, 167 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology provided a significant amount of metalworking debris. This material is not entirely unambiguous, but on balance the majority is thought to confirm the excavators’ interpretation for a number of features being iron smelting furnaces, together with further evidence of iron smithing, but no indication of the extraction or working of any other metals. Early evidence for Iron Age iron smelting is rare and the site is therefore highly significant. The main concentration of these furnaces was in Site 16.07. Prior to specialist examination eight of the negative features were considered to be furnaces and seven to be pits, the features forming two groups. Whilst the identification of most of the smelting furnaces was generally confirmed by the examination of slag within them, the function of the features and the relationships between them were not absolutely clear. It would seem possible that at least one of these furnaces, 16.07.052, and one pit, 16.07.037 were actually used for the pre-roasting of iron ore – a process which reddened the lining but produced no fayalitic slags. However, it is of concern that no surviving ore, or record of ore, was associated with either these putative roasting hearths or the furnaces themselves. No purpose-built smithing hearths were identified, but there is some evidence that two furnaces, 16.07.055 and 16.07.057, contained a high proportion smelting debris in their bases but different, probably smithing related debris in a stratigraphically later fill. As the spongy iron mass that is the product of the bloomery process requires consolidation by repeated heating or hammering it is tempting to assume that the same furnace, perhaps with superstructure compromised might be used for this reheating operation. Alternatively, the base of a now disused furnace immediately nearby might have been brought back into use. A further two furnace bases were identified on site 12.05W. There was also clear evidence for iron smithing in site 24.03, but the dating of this appears uncertain. The excavators refer to the smelting features as bowl furnaces. This terminology has to a large extent gone out of favour, not least because experimental archaeology has demonstrated the difficulty of smelting iron ore in an equiaxial space, compared to other metals such as lead, copper or tin. A vertical shaft provides greater separation for the major chemical reactions required, including the conversion of ore to metal which requires a high temperature, highly reducing region away from the combustion zone. Unfortunately, it is very rare indeed for any of this superstructure to survive. Important exceptions were the late Iron Age and Roman furnaces at Priors Hall, Corby, some of which remained intact up to a height of 70cm (Hall 2008). For these furnaces the term “sunken shaft furnaces” was coined. However, the construction differs significantly from the Devon Pipeline furnaces. At Priors Hall, the shaft occupied only one end of the construction pit and the front base was broken away after smelting to allow bloom and slag to be dragged out into that part of the pit which remained open. In the Devon furnaces, despite surviving depths of up to 35cm, there is no suggestion that any part of the surviving furnace wall was ever unburied or pierced to allow air in or slag and iron bloom out. The type is reminiscent of later British and continental variants where a below ground pit was dug to accumulate a large block of slag. However, the Devon furnaces produced minimal quantities of slag. Given the early date (391-210 Cal BC) and the small quantities of slag it is likely that the furnaces were relatively modest structures for which the above ground superstructure and provision for inputting air have now been lost, that slag largely collected within the furnace and that the metal was extracted, as a solid bloom, from above. The Importance Of The Ironworking Evidence Although smelting had been identified at numerous Iron Age sites, this has generally relied only on finds of slag, not furnaces. The multiple furnace clusters of Devon pipeline are rare examples of early, relatively precisely dated structures. A possible parallel in the region include a supposed bowl furnace at Kes Tor, Dartmoor (Fox, 1954), However the Iron Age date for this may be suspect (Peter Crew pers. comm.). 168 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology In terms of scale of activity the presence of nine or ten furnace clearly represents continuity of iron smelting on the same site. Unfortunately the surviving quality of the evidence did not make clear whether each furnace had been reused. The quantity of slag recovered , whilst not massive, is considerably greater than the 2kg found at Kes Tor, which Halkon (2008, 169) notes was one thought of as typical, before the finding of 3 sites with more than one tonne of slag; Crawcwellt West and Bryn y Castell both in North Wales and Moore’s Farm, E. Yorks. It would also seem likely that further slag was distributed beyond the pipeline trench and contingency excavation area, making this one of the larger known sites nationally. Potential For Further Work The south-west is mineralogically one of the most interesting and distinctive regions, and the slags are likely to reflect this, providing as good an opportunity as anywhere to compare slag and ore. It is also a region with an embarrassing paucity of data. The chemical characterisation of the slag from the Devon pipeline furnaces (particularly those at Site FTC 16.07) would help fill a major gap in our knowledge, as well as supporting the interpretation of a highly significant iron smelting site. Analysis will also help to discriminate between smelting and smithing slag. The absence of identified ore on the site is perhaps highly significant. There is, however, evidence from the magnetic residues for material of high iron content having undergone a heating process. Analysis of some of this material would indicate whether this could have provided a viable ore source. There may well be some ore surviving entrapped in the less liquefied slag, which sectioning and examination in the SEM (in backscattered mode) might well identify. If samples of ores could be identified, then a programme of physico-chemical analysis could provide a more certain identification of the processes used. In addition to SEM-based analysis, the material from FTC 24.03 and a selction of slags from the other furnaces should be examined using XRF to see whether they show any evidence for the smelting of tin, or for the working of tin, lead or pwewter. Closer scrutiny of context records and the site photographs might help to clarify the type and function of individual furnaces. It would also move forward our understanding of what appears to be fairly primitive iron smelting at this early date, important both regionally and nationally. Because of the distinctive morphology of the slag, photographs of specific types should be included in the report. 169 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 10.1: Summary of metallurgical debris from Devon Pipeline Activity Classification Weight (g) No. Contexts Smelting tap slag furnace bottom fayalitic run slag 179 972 3798 1 1 24 Probable smelting Possible ore 377 3 Smithing flake hammerscale Not quantified 5 Possible smithing spheroidal hammerscale Poss. smithing hearth bottom Not quantified 1568 6 3 Undiagnostic ironworking undiagnostic ironworking slag iron-rich cinder dense slag 11227 69 428 47 2 1 Metalworking or other high-temp process vitrified hearth/furnace lining cinder fired clay 2975 126 203 16 6 4 burned stone 13 3 0 0 9 1 2 1 Fuel Non-slag ferruginous concretion stone Total 21945 Table 10.2: Deposits producing significant hammerscale (FTC) Context 24.03.044 24.03.090 Sample 011 017 Wt.(g) 79 38 Sample size (l) 30 11 %Hf 10 20 %Hs 2 2 Period 5 5 Context interpretation Primary fill of pit 24.03.041 Fill of pit 24.03.089 Table 10.3. OTA Quantification of bulk debris (mass in grams) Activity Smelting Poss. smelting Smithing Poss. smithing Non diag. Fe Other Non slag material tap slag fayalitic run slag furnace bottom possible ore flake h/s poss. smithing hearth bottom poss. spheroidal hammerscale dense undiagnostic ironworking slag iron-rich cinder burned stone cinder fired clay vitrified hearth/furnace lining iron concretion stone Total 0 0 0 377 0 0 0 0 410 0 0 0 0 1 0 1 789 Total 170 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Table 10.4: ATK Quantification of bulk debris (mass in g) Activity Smelting Poss. smelting Smithing Poss. smithing Non diag. Fe Other Non slag material tap slag fayalitic run slag furnace bottom possible ore flake h/s poss. smithing hearth bottom poss. spheroidal hammerscale dense undiagnostic ironworking slag iron-rich cinder burned stone cinder fired clay vitrified hearth/furnace lining iron concretion stone Total 0 0 0 0 0 0 nq 0 nq 0 0 3 0 0 0 0 3 Total Table 10.5: FTC Quantification of bulk debris (mass in g) Activity Smelting Poss. smelting Smithing Poss. smithing Non diag. Fe Other Non slag material tap slag fayalitic run slag furnace bottom possible ore flake h/s poss. smithing hearth bottom Poss. spheroidal hammerscale dense undiagnostic ironworking slag iron-rich cinder burned stone cinder fired clay vitrified hearth/furnace lining iron concretion stone total 179 3798 972 0 0 1568 0 428 10817 69 13 126 203 2974 9 0 21156 Total 171 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 10.6: Listing of metalworking debris by Site/context Site Period Context Ottery St Mary to Aylesbeare 03.01 207.07 03.04 03.04.002 03.04 05 03.04.013 Feature type Mass (g) Comments 207.006 subsoil 3.04.004 undiagnostic ironworking slag undiagnostic ironworking slag possible ore 381 29 204 modern ditch 03.04.028 03.04.028 03.04.034 03.04.039 03.04.092 05.01.022 05.01.038 05.01.048 05.01.048 03.04.026 03.04.026 3.04.004 03.04.038 3.04.096 5.01.020 5.01.038 5.01.047 5.01.047 poss. spheroidal hammerscale undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag possible ore possible ore stone vitrified hearth/furnace lining <1 <1 <1 <1 <1 13 160 1 1 13.02.008 13.02.050 13.02.050 13.02.070 13.02.097 13.02.104 13.02.114 13.02.149 13.02.152 13.02.207 13.02.207 13.02.212 13.02.239 13.02.246 13.02.248 15.03.002 13.02.007 13.02.127 13.02.127 13.02.073 13.02.174 13.02.271 13.02.269 13.02.127 13.02.268 13.02.273 13.02.273 13.02.272 13.02.068 13.02.244 13.02.251 - undiagnostic ironworking slag poss. spheroidal hammerscale undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag poss. spheroidal hammerscale undiagnostic ironworking slag undiagnostic ironworking slag poss. spheroidal hammerscale undiagnostic ironworking slag undiagnostic ironworking slag cinder <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 3 12.05.022 12.05w.007 12.05.019 12.05w.004 undiagnostic ironworking slag fayalitic run slag 1 89 10 10 10 10 05 05 05 05 05 05 05 05 05 10 10 12.05W.007 12.05w.007 12.05w.007 12.05w.007 14.01.002 14.01.082 14.01.082 14.01.082 14.01.079 14.01.077 14.01.067 14.01.065 14.01.077 14.01.056 16.01.005 16.07.030 12.05w.004 12.05w.004 12.05w.004 12.05w.004 subsoil 14.01.081 14.01.081 14.01.081 14.01.038 14.01.107 14.01.106 14.01.106 14.01.107 14.01.106 16.07.028 undiagnostic ironworking slag fayalitic run slag smithing hearth bottom undiagnostic ironworking slag undiagnostic ironworking slag vitrified hearth/furnace lining vitrified hearth/furnace lining cinder cinder iron concretion undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag vitrified hearth/furnace lining smithing hearth bottom fayalitic run slag 1149 20 169 661 65 83 6 6 3 8 1 4 4 34 154 119 04 16.07.016 16.07.008 furnace bottom 972 04 10 16.07.016 16.07.022 16.07.008 16.07.021 undiagnostic ironworking slag fayalitic run slag 187 4 10 10 10 10 10 10 16.07.022 16.07.023 16.07.023 16.07.023 16.07.029 16.07.030 16.07.021 16.07.021 16.07.021 16.07.021 16.07.028 16.07.028 poss. spheroidal hammerscale fayalitic run slag tap slag undiagnostic ironworking slag fayalitic run slag undiagnostic ironworking slag <1 218 179 36 44 725 04 04 05 10 03 05.01 10 10 10 10 Aylesbeare to Kenn 13.02 10 10 10 07 08 07 07 10 08 07 07 07 10 07 07 15.03 Fishacre to Choakford 12.05 10 12.05w 10 14.01 16.01 16.07 172 iron-rich stone poss. ore single sphere only iron-rich stone single sphere single sphere single sphere subsoil dribbles spheres and possible probable runs, dribbles and spheres large charcoal impressions large spheres, ?bloom smithing © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site 16.07 Period 10 10 04 04 Context 16.07.034 16.07.034 16.07.016 16.07.012 Feature 16.07.033 16.07.033 16.07.008 16.07.008 type burnt stone undiagnostic ironworking slag flake hammerscale fayalitic run slag Mass (g) 11 17 Comments 593 04 16.07.026 16.07.024 fayalitic run slag 4 04 16.07.016 16.07.008 fayalitic run slag 590 dribbles spheres dribbles spheres bag dribbles spheres 04 04 16.07.015 16.07.015 16.07.008 16.07.008 undiagnostic ironworking slag fayalitic run slag 64 308 04 16.07.014 16.07.008 fayalitic run slag 46 04 16.07.013 16.07.008 fayalitic run slag 2 04 04 04 10 04 04 16.07.012 16.07.012 16.07.012 16.07.041 16.07.011 16.07.011 16.07.008 16.07.008 16.07.008 16.07.040 16.07.008 16.07.008 undiagnostic ironworking slag flake hammerscale undiagnostic ironworking slag undiagnostic ironworking slag undiagnostic ironworking slag fayalitic run slag 498 100 91 33 323 04 04 16.07.010 16.07.010 16.07.008 16.07.008 undiagnostic ironworking slag fayalitic run slag 15 39 10 16.07.007 16.07.006 fayalitic run slag 28 04 10 10 10 10 10 10 10 16.07.012 16.07.039 16.07.047 16.07.050 16.07.050 16.07.051 16.07.053 16.07.047 16.07.008 16.07.037 16.07.043 16.07.049 16.07.049 16.07.049 16.07.052 16.07.043 fayalitic run slag undiagnostic ironworking slag vitrified hearth/furnace lining burnt stone undiagnostic ironworking slag undiagnostic ironworking slag vitrified hearth/furnace lining undiagnostic ironworking slag 157 554 171 1 8 1190 66 1967 10 10 10 10 10 10 10 10 10 10 10 16.07.056 16.07.054 16.07.057 16.07.058 16.07.058 16.07.058 16.07.058 16.07.058 16.07.041 16.07.042 16.07.057 16.07.056 16.07.052 16.07.056 16.07.056 16.07.056 16.07.056 16.07.056 16.07.056 16.07.040 16.07.040 16.07.056 undiagnostic ironworking slag vitrified hearth/furnace lining undiagnostic ironworking slag fired clay flake hammerscale smithing hearth bottom undiagnostic ironworking slag vitrified hearth/furnace lining fired clay vitrified hearth/furnace lining fayalitic run slag 407 470 1974 110 <1 1245 436 200 30 470 266 10 10 10 10 10 10 10 10 10 10 10 10 16.07.047 16.07.041 16.07.042 16.07.045 16.07.045 16.07.047 16.07.042 16.07.047 16.07.046 16.07.047 16.07.046 16.07.046 16.07.043 16.07.040 16.07.040 16.07.043 16.07.043 16.07.043 16.07.040 16.07.043 16.07.043 16.07.043 16.07.043 16.07.043 flake hammerscale vitrified hearth/furnace lining fired clay fayalitic run slag undiagnostic ironworking slag fayalitic run slag fayalitic run slag fired clay fayalitic run slag cinder vitrified hearth/furnace lining undiagnostic ironworking slag <1 1290 5 4 20 57 6 58 865 100 29 435 173 and and and dribbles spheres dribbles spheres dribbles spheres and dribbles spheres and dribbles spheres dribbles spheres and and and and occasional wood/charcoal impressions. Inc. 2 poss. Shbs. uncertain id probable high proportion runs and dribbles. Plenty of charcoal impressions uncertain id dribbles © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site 16.07 24.02 Period 10 10 Context 16.07.046 24.02.050 Feature 16.07.043 24.02.049 type iron-rich cinder dense slag Mass (g) 55 428 24.03 10 05 10 05 24.03.002 24.03.070 24.03.110 24.03.093 24.03.090 subsoil 24.03.041 24.03.149 24.03.151 24.03.089 cinder iron-rich cinder burnt stone undiagnostic ironworking slag fayalitic run slag 3 14 1 4 5 05 24.03.090 24.03.089 cinder 12 10 05 05 24.03.070 24.03.110 24.03.044 undiagnostic ironworking slag flake hammerscale poss. spheroidal hammerscale 12 24.03.149 24.03.041 05 24.03.044 24.03.041 fayalitic run slag 11 05 05 05 05 05 05 24.03.042 24.03.040 24.03.040 24.03.025 24.03.148 24.03.025 24.03.041 24.03.036 24.03.036 24.03.024 24.03.082 24.03.024 vitrified hearth/furnace lining vitrified hearth/furnace lining iron concretion vitrified hearth/furnace lining vitrified hearth/furnace lining undiagnostic ironworking slag 99 3 1 38 15 159 174 Comments poss. part furnace bottom NB also mag. res. NB also mag. res. HS in HS in NB also mag. res NB also mag. res. HS in HS in © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 10.7: Magnetic residues Site no Period sample Ottery St Mary to Aylesbeare 02.03 02 174 03.04 05 72 05 76 05 77 03 66 05 79 10 70 10 69 10 71 05 81 03 73 05 83 05 80 04.10 03 213 07 214 04.12 10 222 05.01 10 180 10 169 10 170 10 172 Aylesbeare to Kenn 07.01 10 289 12.10 10 284 13.02 08 115 08 111 07 94 08 116 08 95 04 143 07 97 07 100 07 104 07 124 10 140 08 123 10 144 10 145 08 118 07 101 08 106 07 96 08 120 10 137 08 105 10 138 08 113 08 114 08 117 08 98 07 109 10 141 08 93 08 119 07 91 08 121 07 90 07 92 08 122 07 108 10 88 07 159 07 166 Context Fill of Mass (g) 02.03.005 03.04.088 03.04.010 03.04.018 03.04.028 03.04.034 03.04.037 03.04.039 03.04.055 03.04.065 03.04.092 03.04.094 03.04.061 04.10.017 04.10.021 04.12.019 05.01.038 05.01.016 05.01.023 05.01.026 02.03.004 3.04.045 3.04.004 3.04.004 03.04.026 3.04.004 03.04.036 03.04.038 03.04.054 3.04.004 3.04.096 3.04.004 3.04.004 04.10.016 04.10.018 04.12.004 5.01.038 5.01.015 5.01.049 5.01.026 14 <1 <1 <1 1 <1 <1 <1 <1 <1 <1 <1 <1 2 1 222 2 1 14 2 07.01.005 12.10.007 13.02.140 13.02.110 13.02.114 13.02.120 13.02.122 13.02.124 13.02.133 13.02.136 13.02.136 13.02.138 13.02.089 13.02.147 13.02.149 13.02.149 13.02.152 13.02.158 13.02.160 13.02.138 13.02.056 13.02.005 13.02.006 13.02.008 13.02.014 13.02.020 13.02.033 13.02.034 13.02.104 13.02.050 13.02.097 13.02.058 13.02.062 13.02.066 13.02.070 13.02.072 13.02.075 13.02.169 13.02.046 13.02.229 13.02.207 07.01.004 12.10.006 13.02.267 13.02.010 13.02.269 13.02.267 13.02.121 13.02.123 13.02.132 13.02.132 13.02.132 13.02.271 13.02.127 13.02.125 13.02.127 13.02.127 13.02.268 13.02.132 13.02.159 13.02.271 13.02.125 13.02.009 13.02.159 13.02.007 13.02.010 13.02.010 13.02.268 13.02.268 13.02.271 13.02.127 13.02.174 13.02.125 13.02.073 13.02.125 13.02.073 13.02.067 13.02.125 13.02.132 13.02.045 13.02.228 13.02.273 1 3 1 1 6 1 1 2 34 1 7 <1 <1 3 3 1 3 15 6 <1 5 1 <1 2 <1 2 3 1 1 3 4 2 2 2 1 2 <1 7 2 1 23 175 Comments © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site no Period Fishacre to Choakford 02.02 02 02 02 02 04 10 12.05 10 10 10 10 10 10 13.03 05 05 05 04 04 04 14.01 05 05 05 10 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 10 16.01 10 10 10 10 10 10 16.07 10 04 04 04 04 04 04 04 04 10 10 10 10 10 10 10 sample Context Fill of Mass (g) 290 292 291 293 294 297 236 233 235 239 228 229 231 190 185 189 193 192 191 33 34 36 37 22 40 41 39 44 45 46 47 48 49 50 51 43 53 54 57 56 58 276 277 278 279 281 280 240 243 242 241 244 245 246 247 248 250 251 259 258 257 256 255 02.02.005 02.02.007 02.02.008 02.02.011 02.02.014 02.02.020 12.05.003 12.05.005 12.05.007 12.05.007 12.05.012 12.05.015 12.05.022 13.03.013 13.03.030 13.03.038 13.03.045 13.03.051 13.03.057 14.01.006 14.01.007 14.01.009 14.01.016 14.01.022 14.01.024 14.01.032 14.01.037 14.01.039 14.01.065 14.01.066 14.01.067 14.01.068 14.01.069 14.01.070 14.01.071 14.01.077 14.01.079 14.01.080 14.01.082 14.01.084 14.01.090 16.01.004 16.01.005 16.01.006 16.01.008 16.01.010 16.01.011 16.07.005 16.07.010 16.07.011 16.07.012 16.07.009 16.07.013 16.07.014 16.07.015 16.07.016 16.07.017 16.07.020 16.07.022 16.07.023 16.07.025 16.07.026 16.07.027 02.02.004 02.02.006 02.02.006 02.02.010 02.02.013 02.02.018 12.05.004 12.05.004 12.05.004 12.05.011 12.05.009 12.05.019 13.03.011 13.03.011 13.03.011 13.03.004 13.03.004 13.03.004 14.01.004 14.01.004 14.01.004 14.01.105 14.01.105 14.01.105 14.01.036 14.01.038 14.01.106 14.01.106 14.01.106 14.01.106 14.01.106 14.01.106 14.01.106 14.01.107 14.01.038 14.01.038 14.01.081 14.01.107 16.01.007 16.01.009 16.01.009 16.07.004 16.07.008 16.07.008 16.07.008 16.07.008 16.07.008 16.07.008 16.07.008 16.07.008 16.07.019 16.07.021 16.07.021 16.07.024 16.07.024 16.07.024 15 25 21 5 15 4 125 14 137 77 35 41 14 6 5 16 6 5 1 8 9 21 52 35 22 15 18 91 11 9 60 <1 20 50 12 55 9 59 106 169 25 31 19 41 45 106 80 9 34 40 49 110 148 50 105 144 9 12 81 204 87 305 7 176 Comments 2 bags 2 bags Modern trench 2 bags 2 bags 2 bags 2 bags layer layer layer layer © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 16.08 18.12 18.13 19.08 21.06 24.03 33.01 33.02 10 10 10 10 10 10 10 10 10 10 254 253 268 260 261 262 263 264 266 267 16.07.029 16.07.030 16.07.032 16.07.034 16.07.038 16.07.039 16.07.041 16.07.042 16.07.045 16.07.046 16.07.028 16.07.028 16.07.028 16.07.033 16.07.037 16.07.037 16.07.040 16.07.040 16.07.043 16.07.043 23 150 31 12 11 72 39 146 80 184 10 10 10 10 10 10 268 269 270 271 272 273 16.07.047 16.07.050 16.07.051 16.07.053 16.07.054 16.07.056 16.07.043 16.07.049 16.07.049 16.07.052 16.07.052 16.07.056 137 100 34 70 98 425 10 10 10 10 02 02 10 10 10 10 05 05 05 05 05 05 05 274 275 299 303 301 304 305 306 311 313 27 29 8 7 10 9 11 16.07.057 16.07.058 16.08.021 18.12.017 18.12.020 18.12.033 18.13.006 18.13.007 19.08.005 21.06.010 24.03.020 24.03.022 24.03.037 24.03.038 24.03.039 24.03.040 24.03.044 16.07.056 16.07.056 16.08.020 18.12.015 18.12.018 18.12.032 18.13.004 18.13.004 19.08.004 21.06.008 24.03.153 24.03.153 24.03.036 24.03.036 24.03.036 24.03.036 24.03.041 101 91 52 44 31 30 18 28 31 388 51 11 39 56 14 19 79 03 05 05 05 05 05 05 05 05 05 05 05 12 24 25 26 13 14 15 16 23 22 21 17 24.03.063 24.03.075 24.03.076 24.03.077 24.03.078 24.03.079 24.03.080 24.03.081 24.03.086 24.03.087 24.03.088 24.03.090 24.03.060 24.03.153 24.03.153 24.03.153 24.03.036 24.03.036 24.03.036 24.03.036 24.03.153 24.03.153 24.03.153 24.03.089 3 102 29 50 31 21 35 35 6 17 12 38 05 05 05 05 03 10 10 04 10 18 19 20 32 30 316 317 318 319 24.03.108 24.03.110 24.03.112 24.03.126 24.03.146 33.01.007 33.01.008 33.02.006 33.02.007 24.03.149 24.03.149 24.03.149 24.03.150 24.03.060 33.01.006 33.01.006 33.02.006 70 46 58 15 10 23 15 24 10 177 2 bags high proportion(c2%) spheres 2 bags occasional spheres 2 bags 10% flake HS, 2% spher. 20% flake HS, 2% spher. layer SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 11: WORKED AND UTILISED STONE BY SUSAN WATTS AND DR. ROGER TAYLOR Introduction This report assesses the worked and utilised stone recovered during the excavations. It comments on the quantity, quality and information potential of the stone and assesses the significance of the assemblage in terms of its regional setting. The report also gives recommendations for further analysis and provides timings and costings for that analysis. All the material is currently stored cardboard boxes and, with the exception of the larger quern fragments, in labelled plastic bags. Description of the Assemblage Forty six pieces of worked and utilised stone together with eighteen unworked but potentially utilised cobbles and pebbles were found during the excavations; one, twenty-one and forty-two pieces from the Ottery St. Mary to Aylesbeare, Aylesbeare to Kenn and Fishacre to Choakford pipelines respectively (Tables 11.1-3). Initial petrological examination indicates that all the material is generally local to the south-west and with origins primarily in south Devon, Dartmoor and Cornwall. Ottery St. Mary to Aylesbeare (Table 11.1) Site 3.04 A cobble from the Budleigh Salterton Pebble Beds used as a polisher or whetstone recovered from the fill of an undated ditch, 3.04.064/6. Probably imported from the west of the site. Aylesbeare to Kenn (Table 11.2) Site 12.01 A number of pieces of roofing slate were found in association with a partly collapsed post-medieval agricultural building. The slate derives from quarries in both the South Hams in Devon and Cornwall, including Delabole. The use of slate from different quarries not only suggests several phases of reconstruction or repair of the roof of the building but is also indicative of the greater movement of Cornish slate following the development of the railway network in the 19th century (Beacham 1995, 23). A fragment from a small, neat whetstone of fine Carboniferous sandstone from mid Devon was found within a collapsed wall (325.002). This is potentially residual from the prehistoric period. Plot 12.09 A small piece of probable Beer stone with a sawn edge and, therefore, of 18th or 19th century date. The quarry at Beer in east Devon supplied fine building stone primarily for churches and stately homes, the freshly quarried stone being particularly well suited for carving (Gale 1992, 10). Site 13.02 Pieces of roofing slate from the South Hams found in post-medieval contexts may have derived from the medieval longhouse. South Devon was an important producer of slate from the 12th/13th until the 19th century with Dartmouth and Totnes being the main centres for export (Beacham 1995, 23). 178 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Fragments of local sandstone and Dartmoor granite formed part of the structure or repairs to a large 13th-14th century hearth (13.02.132) within the medieval long house. Fishacre to Choakford (Table 11.3) Site 2.02 Nineteen cobbles and fragments of porphyritic lava, volcanic tuff, sandstone and siltstone were recovered from four of a series of six Neolithic pits. Of these, three cobbles appear to have utilised as rubbing stones and another, a long, narrow cobble is worn smooth along both long edges. A number of the other unworked cobbles are likely to have been especially collected, perhaps for intended use, probably from the headwaters of the River Hems. It is also noticeable that 5 fragments of local volcanic tuff also found in the pits have been burnt, suggesting they derived from a hearth. Pits 2.02.006 and 2.02.010 are dated by pottery to the later Neolithic period and it is likely that the other pits in the group are of similar date. Site 14.01 One fragment of lower stone and two fragments from upper stones of rotary querns were recovered from Romano-British contexts. Two of the stones (from 14.01.039 [SF2] and 14.01.061) of probable Dartmoor granite and Cornish Greisen show little in the way of diagnostic features but the third (from 14.01.082[ SF6]), comprising a little over a quarter of an upper stone with a collar around the central hole or eye, appears typical of querns of the later Roman period (Watts 2008, 37). Although also of Greisen, it probably derives from a different source to that above. Half a quartzite beach cobble found in the fill of a terrace (14.01.076) dated to the 1st or 2nd century AD. Although the cobble shows no evidence of wear or use it has been brought to the site from some distance away and may perhaps have been part of a hammerstone that split. A dolerite cobble retrieved from an undated ditch (14.01.020) may also have been intended for use, perhaps as a rubbing stone. Site 24.03 Three quern fragments were found. A fragment of Elvan, from the area to the north of Plymouth, came from the fill of a Roman pit (24.03.034), a piece of upper stone of fine-grained granite probably from Dartmoor was incorporated in the fill of a Middle-Late Iron Age pit (24.03.041) and another fragment of biotite granite, also from Dartmoor, derived from the primary fill of Roman ditch (24.03.153). Also found in ditch (24.03.082) was a whetstone from a local cobble of tourmalinised hornfels and a smooth granite river pebble. Both probably derived from the River Avon. A small fragment of granite with some haematite, possibly collected for its pigment, was found within the fill of a Roman gully (24.03.056). Two joining fragments of a stone mould for a pewter dish came from a ditch (24.03.113) dated to the mid 3rd-4th century AD. This is a particularly important find and indicates the presence of a small scale pewter casting industry in the vicinity (pieces of furnace lining were also found on the site). The mould is carved on both sides suggesting it comes from a nest of moulds designed for producing two or three dishes at the time (Beagrie 1989, 179 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design 186,187). © Cotswold Archaeology Pewter is thought to have been a cheap substitute for silver and the industry appears to have flourished in the later Roman period, cAD250-410 (Wedlake 1958, 85; Beagrie 1989, 175). The stone mould from Site 24.03 sits comfortably within these dates. The mould is of fine-grained granite, possibly from Dartmoor. Four neat, smooth, oval granite river pebbles of varying coarseness came from the fill of a Roman ditch (24.03.153). These appear to have been especially collected, possibly from the River Avon, perhaps for use as slingstones. Recommendations Within the overall assemblage, three categories of worked stone – the stone mould, querns and Neolithic rubbing stones – are considered particularly important in terms of their regional and possibly national significance. It is recommended, therefore, that full analysis, leading to the production of a report, be carried out on these artefacts in order to provide details on their manufacture, use and discard and enable them to be placed in their regional context. The other pieces worked or utilised stones have been catalogued and reported on as part of this assessment and further analysis is not thought to be of merit. Stone mould As potentially the first example of a Romano-British pewter stone mould to be found in Devon, the joining fragments from Site FTC 24.03, must be considered highly important at both regional and national levels. Although many pewter vessels have now been recorded from Romano-British sites, comparatively few moulds for casting the pewter have been found. In his analysis of the Romano-British pewter industry, Beagrie (1989) lists just 15 sites and initial research indicates that few have been found in more recent years. Comparison with other mould stones, such as the two from St. Just, Cornwall, one of which appears similar in form, will enable that from site 24.03 to be better placed in its regional and national context. Most of the other moulds found to date appear to be of limestone, although Old Red Sandstone was also apparently used and those from St. Just, Cornwall are of Greisen (Beagrie 1989, 182-188; Brown 1970). The choice of material may have been determined by the location of the particular pewter working site. Further petrological analysis is also recommended, therefore, to confirm the source of the mould. It is suggested that the mould stone be both drawn and photographed. Querns Querns were important tools during the prehistoric and Roman periods, used principally for grinding grain and malted grain for baking and brewing. The six fragments of quern found on sites FTC 14.01 and FTC 24.03 are a valuable addition to the corpus of knowledge on the forms of quern used in Devon during the Iron Age and Roman periods and also on the types of stone that were utilised for their manufacture. It seems that particular sources of stone were preferred and further analysis will provide insight into the trade/movement and distribution of these tools and the areas over which they were sourced at different periods. To put the assemblage in its regional context it will be useful to compare the fragments with those that have been found on other Iron Age and Roman sites in the area. This will allow a fuller picture of changing styles and materials to be developed. The contexts in which the quern fragments were found also potentially enables comment on depositional or disposal practices. It is suggested that two fragments, SF2 and SF6, be drawn. Neolithic rubbing stones The possible rubbing stones found in the group of Neolithic pits on Site FTC 2.02 are considered important not only in terms of their artefactual value but also in their potential use as structured deposits. Many Neolithic pits 180 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design are thought to have been dug specifically for the purpose of being infilled with a mixture of artefacts, soil and other material. The various contents may have had particular symbolic or social significance and have been chosen in response to local traditions and conditions (Thomas 1999, 64-74; Pollard 2001, 322-328). In this respect the presence of unworked cobbles in the pits may also be significant as they too will have been collected, possibly from the headwaters of the River Hems, and brought to site where they were perhaps intended for use. It is also notable that several of the fragments of volcanic tuff are burnt implying they derived from a hearth(s). Comparison of the contents of the pits from FTC 2.02 with those of other later Neolithic pit deposits in the region such as at Tremough, Cornwall will potentially enable patterns of deposition to be ascertained and the relative importance of the inclusion of non-worked stone. It is suggested that the contents of the pits be photographed. Table 11.1: Worked and utilised stone from the Ottery St. Mary to Aylesbeare pipeline. Site 3.04 Period Undated Context 03.04.066 Description of Context Fill of ditch (03.04.004) Stone Artefact Polisher/whetstone. Budleigh Salterton Pebble Beds cobble Comment Probably imported to site from west. Table 11.2: Worked and Utilised Stone from the Aylesbeare to Kenn Pipeline Site 12.09 Period - Context 12.09 Description of Context Road crossing RDX (unstrat) 12.01 08 12.01.009 08 326.002 From agricultural building 12.01.01 Disuse/collapse layer (12.01.034) 08 325.002 Collapsed wall (12.01.034) 08 325.002 Collapsed wall (12.01.034) 08 325.002 Collapsed wall (12.01.034) 07 13.02.190 Part of hearth (13.02.132) 07 13.02.189 Part of hearth (13.02.132) 07 13.02.165 Part of hearth (13.02.132) 07 13.02.112 Fill of ditch (13.02.270) 08 13.02.110 Fill of ditch (13.02.010) 07 13.02.107 Make up layer over natural 13.02 181 Description Piece of ?Beer stone with sawn edge 6 pieces of Cornish slate from Delabole 3 pieces of Devonian slate from South Hams Piece of Devonian slate from South Hams Piece of slate, possibly Cornish Piece of small whetstone, fine Carboniferous sandstone from Mid Devon Fragment of burnt sandstone, possibly from Permian Breccia 2 coarse granite fragments from Dartmoor Fragment coarse granite from Dartmoor Fragment of shale with vitreous, slaggy coating Piece of Devonian roofing slate from South Hams Piece of Devonian roofing slate from South Hams Comment C18-C19 One with 2 small holes at the edge Cornish slate of later date than the Devon slate Possibly residual prehistoric SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Table 11.3: Worked and utilised stone from the Fishacre to Choakford pipeline. Site 02.02 14.01 24.03 Period 02 Context 02.02.005 Description Fill of pit 2.02.004 02 02.02.005 Fill of pit 2.02.004 02 02 02.02.005 02.02.005 Fill of pit 2.02.004 Fill of pit 2.02.004 02 02.02.007 02 02.02.008 02 02.02.011 Secondary fill of pit 2.02.006 Third fill of pit 2.02.006 Secondary fill of pit 2.02.010 02 02.02.011 02 02.02.011 02 02.02.011 02 02.02.012 02 02.02.017 Secondary fill of 2.02.010 Secondary fill of 2.02.010 Secondary fill of 2.02.010 Primary fill of 2.02.010 Fill of pit 2.02.016 05 14.01.021 Fill of ditch 14.01.105 05 14.01.039 Fill of pit 14.01.038 05 14.01.061 Fill of ditch 14.01.106 05 14.01.077 Fill of 14.01.107 05 14.01.082 Fill of natural depression 14.01.081 05 24.03.035 Fill of pit 24.03.034 04 24.03.042 Fill of pit 24.03.041 05 24.03.057 Fill of gully 24.03.152 - 24.03.084 05 24.03.086 05 24.03.086 05 24.03.119 05 24.03.148 Primary fill of 24.03.153 Primary fill of 24.03.153 Primary fill of 24.03.153 Secondary fill of 24.03.153 Third fill of 24.03.153 pit pit pit pit terrace ditch ditch ditch ditch ditch 182 Description 4 fragments of local volcanic tuff, burnt Subangular fragment of local volcanic tuff, possible rubbing stone 2 river cobbles of porphyritic lava River cobble of vesicular and porphyritic lava utilised as a rubbing stone Utilised elongated cobble of local foliated volcanic tuff Small fragment of local volcanic tuff, burnt 3 cobbles of porphyritic lava, 1 fragment of local volcanic tuff, burnt, and 1 cobble of vesicular lava Fragment of lava Comment Possible structured deposit As above As above As above Cobble of porphyritic lava possibly used as a rubbing stone Local elongated cobble of finegrained laminated sandstone Fragment of local siltstone As above Elongated cobble of fine-grained local sandstone Dolerite cobble possibly intended for use Fragment of rotary quern. Finemedium grained granite Quern fragment of Greisen with some black tourmaline. Cornish Half quartzite beach cobble As above Fragment of rotary quern. Quartzite rich Greisen with tourmaline clots. Probably from Cornwall. ?Carnmenellis Probable quern fragment. Elvan from area to north of Plymouth Fragment of rotary quern of fine grained granite with tourmaline clots and quartz phenocrysts Small fragment of granite with some haematite. Granite river pebble Cobble of tourmalinised hornfels. Whetstone Quern fragment of medium grained biotite granite, from Dartmoor 2 joining fragments of a stone mould of fine grained granite 4 egg shaped granite river pebbles of varying coarseness As above As above Lower stone Upper stone Brought to site from some distance away Upper stone with collar around the eye No features Upper stone Possibly collected for pigment Possibly from River Avon Possibly from River Avon Rather degraded Carved on both sides Possibly from River Avon SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 12: CREMATED HUMAN REMAINS BY HARRIET JACKLIN Introduction The following report details the results of the skeletal analysis of the cremated human remains recovered from a cremation burial at Site OTA 4.01. Methodology The analysis of the cremation burial included the assessment of age, sex and pathological analysis. The results were recorded using a standardised recording form created by Jacklin (2005), in line with Brickley and McKinley (2004). References used during cremation analysis included: McKinley (1994), McKinley (2000a), McKinley (2000b), McKinley and Roberts (1993) and McKinley and Bond (2001). All fusion data is based on Scheuer and Black (2000) and all sex data is based on Buikstra and Ubelaker (1994). Results The cremated remains (deposits 205.012 and 205.005), from cremation pit 205.004 in evaluation trench 205 represent and un-urned cremation burial (Figs 12.1-12.3). The cremation burial was excavated in two sections and has no associated finds. The cremation is undated at present but is viable for radiocarbon dating. The cremated remains weighed 767g and there was no duplication of skeletal parts. The surviving cremated bone represents a possible female aged 18+ years. The age at death was based on the assessment of epiphyseal fusion and the estimation of sex based on assessment of the cranial fragments and overall size and robusticity. The majority of the identifiable skeletal elements represented within the cremation were the long bones and the cranium, which take longer to burn than other skeletal elements. The small quantity of the smaller skeletal elements such as the hands, feet and ribs is expected as these elements take a shorter amount time to reduce effectively. The colour of the cremated remains reflects the degree of oxidization (temperature) to which the bone was submitted. The majority of the cremated material within the cremation burial reached a temperature of >c.600 deg. C (full oxidization). Recommendations The cremation includes material suitable for C14 dating. Once the date of the cremation is established its significance within the region can be considered in greater detail. No further work is needed on the material itself. 183 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Figure 12.1: 10mm+ Epiphyses Fragments Figure 12.2:10mm+ Cranial Fragments 184 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Figure 12.3: 10mm+ Long Bone Fragments 185 © Cotswold Archaeology © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 12.1 Cremation Burial, (205.012) and (205.005), [205.004] Total Weight = 767g Context Fragment Size (mm) Weight (g) Colour (%) Additional Notes 0<2mm 42g White 99%, white-grey 1% Unidentifiable human bone fragments mixed with bone dust. 2<5mm 36g White 99%, white-grey 1% 5<10mm 314g White 99%, white-grey 1% 10mm+ 375g White 99%, white-grey 1% The majority of the fragments are unidentifiable consisting of long bone and trabacular bone. One fragment of a dental root has also been identified. The majority of fragments consist of long bone, trabacular bone and cranial fragments. The cranial fragments are of adult width and size (although slender) and include partially closed suture lines indicating a possible young adult. Three dental roots (fully formed), fragments of vertebral neural arches, a diaphysis of an unsided metacarpal (5) and a fragment of an unsided fully fused metacarpal (5) distal epiphysis (possibly the same), an unsided medial hand phalanx and fragments of proximal-medial hand phalanx have also been identified. The majority of fragments are identifiable consisting of fragments of epiphysis, cranium and long bone. Also found are two fully fused hand medial-distal epiphysis, five fragments of vertebral neural arches (including several cervical and thoracic facets) and one fragment of a lumbar body (including the annular rim). No age related changes or pathology found, all fragments appear to be in good condition. The epiphysis fragments (20g): Fragments of epiphysis and metaphysis including fragments of a distal femur (18+ years), proximal tibia (17+ years), femoral or humeral heads (16/17+ years), a proximal ulna fragment (14+ years) and an un-sided metacarpal (1) proximal end. All of adult size and fully fused indicating an age of 18+ years*. No age related changes or pathology found, all fragments appear to be in good condition. See fig.1 The cranial fragments (80g): Fragments of frontal occipital, parital and temporal bone. Sutures visible and partially closed. All adult in size and width. Fragments include a part of the nuchal crest which scores ‘1’ ** indicating a female and the left and right supra orbital ridges which both score a ‘1’ ** , again indicating a female. Also identified are a fragment of the right mandible but with no sockets or teeth available for study, the left zygomatic arch and two fragments of the left maxilla consisting of dental sockets for pre molars and molars; no avolar bone reabsorbsion (indicating ante-mortem loss) visible, loss of teeth due to post-mortem loss. No age related changes or pathology found, all fragments appear to be in good condition. See fig.2 The long bone fragments (220g): Fragments of the humerus, ulna, radius, femur, tibia and fibula. No age related changes or pathology found, all fragments appear to be in good condition. See fig. 3 * ** After Scheuer and Black (2000) After Buikstra and Ubelaker (1994) 186 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 13: ANIMAL BONE BY SYLVIA WARMAN Introduction Animal bone was recovered from all three sections of the pipeline route (OTA, FTP and ATK). The assemblage comprised 3121 fragments from 138 bones weighing 2kg. Of these, 241 fragments were hand collected whilst 80 fragments were recovered from processed samples. Methods The assessment conforms to the guidance on best practice as described by English Heritage (2002). The animal bone was examined and recorded at context level using a Microsoft Access database. Information recorded included; number of bones, number of fragments, weight of bones in grams, number of bones identifiable to species, fragmentation and preservation, numbers of mandibles, epiphyses and whole bones, species and body parts identified, age and state (including modifications such as butchery, burning, gnawing etc). This information is presented by section of the pipeline, site, period, feature and deposit, in tables 13.1, 13.2 and 13.3. Results Ottery St Mary to Alyesbeare Animal bone was recovered from three sites; 3.01, 3.04 and 5.01. The fill of ditch 207.006 (Site 3.01) was the only deposit to produce identifiable animal bone; a cattle mandible fragment and an ankle bone. The remainder of the animal bone was identified to size category where possible (sheep-sized and cow-sized) but some was too fragmented and is recorded as unidentifiable mammal bone. The animal bone was in moderate to poor condition with signs of weathering noted frequently. The animal bone was recovered from the fills of cut features; most of these were assigned to later periods 8 and 9 as well as undated material. Deposit 03.04.020 (sample 78) was the earliest deposit to produce animal bone (Period 5, Roman) the bone comprised tiny unidentified burnt fragments. The preponderance of animal bone from later periods and the condition of the bone suggests that the conditions for preservation of bone at these sites were poor. The fact that all of the animal bone from the Roman deposits is burnt supports this suggestion; any unburnt animal bone of reasonable antiquity is likely to have been completely destroyed. Fishacre to Chockford Animal bone was recovered from four sites along this section; 18.12, 24.03, 25.01 and 26.01. Only one item was identified to species, a fragmented sheep/goat tooth from the third fill of ditch 24.03.082. The remainder of the material was sheep-sized tooth and long bone fragments and completely unidentified. All of the deposits producing animal bone from Site 24.03 were assigned to period 5 (Roman), most showed signs of burning. Sites 18.12, 25.01 and 26.01 included animal bone from more recent post-medieval deposits or undated deposits and sub-soils. Aylesbeare to Kenn section This section produced the larger part of the animal bone assemblage, 247 fragments from 91 bones of which 23 were identified to species. These were recovered from two sites 12.01 and 13.02. The assemblage from Site 12.01 comprised, horse, cattle, rabbit, rabbit/hare and rat, with fragmented material of cow-sized sheep-sized and cat-sized categories. The deposits that produced animal bone were post-medieval and undated. Animal bone preservation was noticeably better on this section of the pipeline when compared to OTA and FTP. For example the material from Site 12.01 included the remains of a hind limb from an infant calf. The animal bone from Site 187 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology 13.02 included horse, cattle, sheep/goat and frog/toad. The remainder was identified as cow-sized, sheep-sized and small mammal-sized. A large quantity of fragments could not be identified and burning weathering and modern breakage were noted. The deposits producing animal bone were assigned to periods 7 (medieval) and 8 (post-medieval) whilst one deposit was undated. The animal bone recovered from sample 105 from the shell midden may have survived due to a localized raised pH caused by the deposition of a large number of marine shells. Discussion The animal bone assemblages from all three sections of the pipeline are small and fragmented those from OTA and FTP particularly so. The assemblage from ATK is larger and included more identifiable specimens. The species present are unremarkable and likely to represent domestic stock and small wild animals with a commensal habit. Recommendations The animal bone assemblages offer little in terms of interpreted past diet and economy due to their small and fragmented nature. No further work on the assemblages is recommend but a brief summary of species identified by site should be included in the publication. 188 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 13.1 Animal bone from OTA section by site, period and context Site no 03.01 period context 9 03.01 sample no of frags 13 no of bones 13 weight 207.007 Description generic/feature no Fill of ditch 207.006 10 207.005 Fill of ditch 207.004 7 03.04 5 03.04.020 03.04 8 03.04.053 Third fill of ditch 03.04.017 Fill of ditch 03.04.067 03.04 8 03.04.079 05.01 10 05.01.016 78 169 species/part state age 65 No of bones id 2 B(H,LL) SSZ(LB) WE MB SA 1 2 0 CSZ(R) MB 4 4 0.4 0 UNID(F) BN 5 5 4 0 CSZ(LB) SSZ(LB) WE MB WE MB Fill of ditch 03.04.078 21 1 18 0 CSZ(LB) Fill of pit 5.01.015 6 6 0.4 0 UNID(F) 56 30 89.8 2 Table 13.2 Animal bone from FTC section by site period and context Site no 18.12 24.03 24.03 24.03 24.03 25.01 26.01 period context sample Description generic/feature no 10 5 5 5 18.12.017 24.03.038 24.03.080 24.03.076 303 7 15 25 Primary fill of pit 18.12.015 secondary fill of pit 24.03.036 Same as 24.03.039 Secondary fill of ditch 24.03.074 5 8 24.03.088 25.01.007 26.01.002 21 Third fill of ditch 24.03.082 Fill of ditch 25.01.006 Subsoil no of frags 1 3 5 2 no of bones 1 3 5 2 weight 0.4 0.5 0.4 0.8 No of bones id 0 0 0 0 3 2 2 18 3 1 2 17 0.4 2 1 5.5 0 1 0 1 species/part state UNID(F) SSZ(H) UNID(F) UNID(F) SSZ(LB,UNID) BN BN UNID(F) O/C(H) UNID(F) BN MB WE age A Key to codes used in table Species; E = Equus caballus (Horse), B = Bos taurus (cow), O/C Ovis/Capra (sheep/goat) ORC = Oractalagus cuninculus (Rabbit) LEP = leporid (rabbit/hare), RTSP = rat not identified to species F/T =frog/toad CSZ = cow-sized, SSZ = sheep-sized, CTSZ = cat-szied, SM small mammal (mouse-sized), CHSZ = chicken-sized, UNID = unidentified, Parts; H = head, HC = horn core, V = vertebra, R = rib, UL = upper limb, LL = lower limb, MP metapodial, P = phalange, FB = flat bone, LB = long bone, F = fragment. Ageing data; epiphyses = simple count, mandibles = simple count State; WE = weathered, BT = butchery marks, BN = burnt, GN = gnawed, RT = root etching, MB = modern break, PA = pathology. Age; F/N = foetal/neonatal, I = infant, J = juvenile, SA = sub-adult, A = adult, O = old adult. 189 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 13.3 Animal bone from ATK section by site period and context Site period Context 12.01 10 12.01 10 12.01 10 12.01 8 12.01 8 326.002 same as 12.01.034 328.002 same as 12.01.034 328.005 same as 12.01.030 315.008 same as 12.01.033 315.009 same as 12.01.030 12.01 8 13.02 10 328.008 same as 12.01.034 13.02.017 13.02 7 13.02 sample Description generic/feature no disuse/collapse layer 325 no of frags no of bones weight 3 3 12 No of bones id 2 Wall collapse layer 328.002 1 1 3 1 Disuse/collapse layer 328.005 2 2 5 0 Fill of 315.007 2 2 53 2 2 Natural disuse spread within structure 12.01.001 5 4 12 3 2 Disuse 328.008 4 3 14 3 Spread of animal bone 14 12 152 2 13.02.056 fill of 13.02.055 ditch 1 1 25 7 13.02.107 2 2 13.02 7 13.02.232 12 13.02 7 13.02.012 Make-up layer over natural Fill of pit 13.02.228 Fill of ditch 13.02.011 13.02 7 13.02.110 Fill of 13.02.109 13.02 7 13.02.112 Fill of 13.02.111 163 layer mandibles epiphyses species/part state age ORC(UL) RTSP(UL) SSZ® LEP(UL) MB A, SA MB A O/C(UL,LL) BT A E(H) ORC(LL) CTSZ(UL) LEP(LL) MB GN A, SA, J RTSZ(U/L) CHSZ(UL) B(UL,LL,MP) O/C(UL) SSZ(V,R) WE 0 CSZ(LB) BT 11 0 CSZ(LB) WE 12 0.4 0 UNID(F) BN 23 1 162 1 E(UL) A ditch 12 1 36 0 WE MB BT WE MB ditch 1 1 11 1 MB SA 190 3 F/N 1 CSZ(LB) 1 B(UL) A, SA © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site period Context sample no of frags no of bones weight 1 1 0.4 No of bones id 0 13.02 7 13.02.158 101 13.02 7 13.02.189 133 1 1 0.4 0 UNID(F) 13.02 7 13.02.192 136 Fill of 13.02.163 pit 6 6 0.4 0 UNID(F) BN 13.02 7 13.02.233 164 Third fill of pit 13.02.228 8 8 0.4 0 UNID(F) BN 13.02 13.02 8 8 13.02.002 13.02.006 105 Subsoil Shell midden 1 15 1 15 12 1.1 1 1 MB BN MB 13.02.033 Secondary fill of ditch 13.02.031 1 1 24 0 B(H) F/T(UL) SSZ(LB) SM(V) UNID(F) SSZ(LB) UNID(F) CSZ(UL) 13.02 8 13.02 8 13.02.141 Animal bone deposit within 13.02.127 57 4 618 3 13.02 8 13.02.152 Secondary fill of ditch 13.02.150 5 3 76 13.02 8 13.02.160 Fill of 13.02.159 ditch 3 1 13.02 8 13.02.160 Fill of 13.02.159 ditch 13 193 106 Description generic/feature no Part of Hearth 13.02.132 Part of Hearth 13.02.132 mandibles state UNID(F) MB age A A, SA BT MB WE MB AB A 1 B(V) CSZ(LB) MB A 36 0 CSZ(LB) WE MB 2 12 0 CSZ® MB 88 1277.1 21 1 1 species/part E(H,UL) CSZ(LB) 191 1 epiphyses 10 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 14: CHARCOAL BY DANA CHALLINOR INTRODUCTION The charcoal from 247 contexts, comprising material from the flots and residues, was submitted for assessment. An additional 17 bags of hand-collected material was also examined. The bulk of the samples came from the Fishacre to Choakford section of the pipeline from features ranging in date from the Neolithic period through to the Romano-British, with a large quantity of, as yet, undated features. The samples from the other two sections of pipeline (OTA06 and ATK06) comprised material of later date, including medieval and post-medieval features. METHODOLOGY The charcoal was scanned under a binocular microscope at up to x45 magnification. Charcoal caught on a 2mm sieve was considered identifiable and quantified; fragments were randomly extracted, fractured only if necessary and examined in transverse section. This method is usually reliable for the identification of ring porous taxa (e.g. Quercus and Fraxinus), but the diffuse-porous taxa should be considered as 'type' and require confirmation. The maturity of the wood was recorded where possible or significant, i.e. samples with large quantities of whole stems, and the potential for radiocarbon dating was noted (by a key denoting Y=yes, N=no and ?=possible but would need further examination). RESULTS AND IMPLICATIONS The full results of the charcoal assessment are recorded in an MS Excel workbook and the results are discussed by pipeline section below. A similar range of taxa was noted in the samples from all three pipeline sections, including; Alnus/Corylus (alder/hazel), Fraxinus (ash), Maloideae (hawthorn group), Prunus (cherry/blackthorn), Quercus (oak), Salix/Populus (willow/poplar) and Ulex/Cytisus (gorse/broom). A couple of fragments of Acer (maple) type and Betula (birch) type were also noted, but these identifications are highly provisional as there are great similarities between these genera and others. In general, the most common taxa were alder or hazel, both of which were fully identified in the material sent for radiocarbon dating, and oak. A key was used to assess the potential of the samples: A indicates samples which should be analysed in full; B indicates samples with good potential from which a selection of samples for analysis should be chosen; C indicates samples with limited taxonomic diversity or poor preservation which should only be analysed if the context is significant; N indicates samples which are not recommended for analysis, although some might have radiocarbon potential. Only samples with good to moderate potential are shown in Tables 14.1-14.3. Table 14.4 indicates the samples also identified for radiocarbon dating, subject to confirmation of the suitability of the material. Ottery St Mary to Aylesbeare (OTA06) Of the 33 contexts assessed, 18 contained quantities of charcoal which were too small to provide useful data except the occasional fragment of Quercus (oak) or, more rarely, a shorter-lived species suitable for dating. The results for the samples with potential is presented in Table 14.1. The charcoal varied in preservation, with many friable fragments or infused with sediment. Only two samples were considered exceptional for further analysis; one is the cremation (site 4.01, context 205.12) and the other from Pit 2.03.004 with has produced Middle Neolithic pottery. It is expected that some of the B and C samples will provide supporting data in the final analysis. The single bag of hand-collected charcoal from OTA06 (context 04.10.011) produced a couple of roundwood fragments of Alnus/Corylus (alder/hazel) which has no further potential except for dating. 192 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Aylesbeare to Kenn (ATK06) The samples from ATK06 exhibited better preservation of the charcoal, than those from OTA06, and the assemblages were more diverse (Table 14.2). Alnus/Corylus (alder/hazel) and Quercus (oak) were still frequent, but there was also a large component of Ulex/Cytisus (gorse/broom). This indicates increased exploitation of heathland for fuel, and given the medieval date of some of the samples, might suggest some pressure on woodland resources. At least it is an issue worth examining in future analysis. Fourteen samples produced good charcoal assemblages with high potential for analysis, including a few medieval pits, and some cremation samples with mixed taxa. Fishacre to Choakford (FTC06) This section provided 137 samples of which more than 70 produced assemblages with some potential (Table 14.3). A high number of these were dominated by Quercus (oak) or Alnus/Corylus (alder/hazel), and the assemblages seemed generally to be quite limited in taxonomic character. The samples highlighted as potential A are those with a more mixed range, as these will provide a fuller species list from which to interpret the assessment results. The furnace samples, for instance, were dominated by oak, which is typical for metalworking, and the samples require only limited further analysis to confirm the maturity. The preservation was again quite variable, with many fragments covered with sediment or very small in size, if not in quantity. The potential cremation samples appeared to be quite mixed, but without the Ulex/Cytisus which characterised those from ATK06. It will be of interest to look at these samples in more detail when the dating is confirmed. The sixteen samples of hand-collected charcoal were mostly composed of oak and alder/hazel, including one with a large quantity of charcoal (14.01.2003). This assemblage appeared to be dominated by oak, so is unlikely to be useful for analysis. RECOMMENDATIONS Across the three pipeline sections, there is high potential for further analysis, though the exact samples to be analysed will need to be selected from those with highest potential at a later date, when the full dating programme and context analysis have been completed. Certainly, the potential cremations, the furnaces and a selection of the pits should be analysed and it is suggested a selection of samples from each phase are examined to provide a dataset for interpretation and comparison. The samples offer the opportunity to examine the following issues: ritual; the nature of the wood selected for cremations industrial; the nature of the wood used for the Romano-British furnaces domestic; how the choice of wood for hearths and general domestic use (crop processing?) varies from industrial and ritual uses how the landscape and/or selection of wood for fuel changes over time how these samples fit in with comparable sites in the region Additional processing It is recommended that any further soil from features identified as possible cremations is processed. Many of the samples assessed were not deemed worthy of analysis because the quantities of charcoal were less than 20 fragments and the merit of further processing is difficult to judge on the basis of a few fragments. Further processing is likely to increase the quantities to provide worthy assemblages, except in those instances where 193 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology only a single + is indicated. It is only worth doing if the context or date would add significantly to the dataset. Samples with additional soil to process are listed in Table 14.4. METHOD STATEMENT The intention will be to adopt two approaches to the analysis. The first will provide a broad characterisation of the sample assemblage by using the assessment data and selecting 20 charcoal fragments from two sieve sizes, (2mm and 4mm) for full identification. The second aims to identify c100 fragments which are >2mm in size. The charcoal is fractured and sorted into groups based on anatomical features observed in transverse section at low magnification. Representative fragments from each group are then examined in all three planes at high magnification (up to X400). Identifications would be made with reference to identification texts (e.g. Schweingruber 1990, Hather 2000) and modern reference material. The assessment results would also be referred to and included in the report. Broad identifications and assessment of suitablility will also be undertaken of material needed for radiocarbon dating. It is propsed that broad identifications will be made of c 70 samples, and full identifications from c 15 samples selcted from those listed in Table 4.4. 194 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 14.1: Results of the charcoal assessment from OTA06 (showing only samples with potential) Period Generic/ of 2 Fill Context Sample Context type 03.04.096 03.04.092 073 pit .090 fill residue taxa notes Analysis +++ Alnus/Corylus, Fraxinus v infused and crumbly C 02.03.004 02.03.005 174 pit .004 fill ++++ Alnus/Corylus rw, Quercus rw, Q mixed, lots rw, good size Ulex/Cytisus rw 3 03.04.026 03.04.028 066 3 04.10.016 04.10.017 213 pit fill ++++ Quercus, Alnus/Corylus predom oak, comm C pit fill ++++ Quercus, Alnus/Corylus predom oak, infused C 5 04.10.018 04.10.021 214 ditch fill +++ Prunus rw, Quercus q small and not much C 7 01.03.004 01.03.005 173 pit .004 fill ++ Ulex/Cytisus, Maloideae 10 205.004 205.012 063 cremation +++ Quercus, Alnus/Corylus Alnus glutinosa C14 A 10 03.04.031 03.04.032 068 pit fill ++++ Quercus predom oak, comm C 10 03.04.038 03.04.039 069 pit fill ++++ Alnus/Corylus rw, Fraxinus q small B/C 10 03.04.004 03.04.055 071 pit fill +++ Alnus/Corylus, Fraxinus v infused and crumbly C 03.04.004 03.04.020 078 ditch fill +++ Quercus rw, Alnus/Corylus rw, q mixed Ulex/Cytisus B 10 03.04.004 03.04.094 083 ditch .095 fill +++ Prunus rw, Maloideae q small C 10 05.01.017 05.01.019 168 posthole fill ++++ Quercus hw predom oak C 10 05.01.015 05.01.016 169 pit fill +++ Quercus predom oak, comm C 7 05.01.049 05.01.023 170 charcoal layer ++++ Quercus hw, Maloideae predom oak, but some diffuse as well B 2 10 flot ++++ ++ ++++ ++++ 195 A C © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 14.2: Results of the charcoal assessment from ATK06 (showing only samples with potential) Period Generic/ Fill of Context Sample Context type 3 14.09.016 14.09.009 203 3 14.09.016 14.09.010 3 14.09.016 3 residue taxa notes Analysis pit +++ Quercus, Alnus/Corylus, cf Ulex/Cytisus Corylus avellana C14 A 204 pit +++ Quercus, Alnus/Corylus, Prunus, Ulex/Cytisus Ulex/Cytisus C14, mixed A 14.09.011 205 Pit +++ Quercus 14.09.003 14.09.006 207 pit ++ Quercus, Ulex/Cytisus 7 13.02.163 13.02.192 136 pit ++ Ulex/Cytisus rw, Prunus rw 7 13.02.221 13.02.221 151 layer +++ Ulex/Cytisus rw, Alnus/Corylus rw, Salix/Populus v clean charcoal, mixed B 13.02.272 13.02.212 152 fill of .196 ++ ++ Ulex/Cytisus rw, Quercus not a bad size C 13.02.272 13.02.209 154 SFB build up +++ +++ Ulex/Cytisus rw, Quercus, Salix/Populus, Maloideae rw 13.02.228 13.02.229 159 pit fill ++++ +++ Mostly diffuse; massive Ulex/Cytisus rw, Alnus/Corylus rw, Fraxinus rw, frags, lots r-w, good A Maloideae pres 13.02.222 13.02.223 160 pit fill +++ Ulex/Cytisus rw, Prunus rw 13.02.272 13.02.202 161 fill of .196 +++ ++++ Ulex/Cytisus, Quercus rw, Betula type, Alnus/Corylus Q mixed rw A/B 13.02.228 13.02.232 163 pit .228 fill ++++ ++++ Ulex/Cytisus rw, Prunus rw, Fraxinus rw Q mixed A/B 13.02.228 13.02.233 164 pit .228 fill ++++ ++++ Ulex/Cytisus rw, Prunus rw Predom Ulex/Cytisus, B but some mixed 7 13.02.228 13.02.234 165 pit fill ++++ Ulex/Cytisus rw, Prunus rw, Maloideae rw Q mixed, but small B 8 13.02.174 13.02.097 093 pit .174 fill +++ +++ Quercus rw, Ulex/Cytisus rw mostly Ulex/Cytisus C 8 13.02.244 13.02.246 285 ditch ++ ++ Alnus/Corylus rw 10 07.01.004 07.01.005 289 pit fill +++ Quercus predom oak, comm C 10 13.02.009 13.02.016 139 ditch fill ++++ Ulex/Cytisus rw, Prunus rw, Fraxinus rw, Maloideae q mixed A/B 10 12.10.006 12.10.007 284 pit fill ++++ Quercus hw predom oak, good size C 10 14.09.021 14.09.023 287 ditch fill ++ Alnus/Corylus rw Predom Alnus/Corylus C 7 7 SFB flot 7 7 7 7 7 SFB ++ 196 A Ulex/Cytisus C14 B C B mostly Prunus B C © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 14.3: Results of the charcoal assessment from FTC06 (showing only samples with potential) Period Generic/ fill of Context Sample Context type flot residue taxa notes 02.02.004 02.02.005 290 pit fill ++ +++ Alnus/Corylus, Quercus mostly Alnus/Corylus; C Corylus nutshell 02.02.006 02.02.008 291 pit fill +++ + Alnus/Corylus rw, Quercus 02.02.006 02.02.007 292 pit fill +++ ++ Alnus/Corylus Quercus hw 02.02.010 02.02.011 293 pit fill ++ +++ Alnus/Corylus rw, Quercus 2 02.02.018 02.02.019 296 fill + ++ Fraxinus, Alnus/Corylus rw 2 02.02.016 02.02.017 298 fill ++ ++ Alnus/Corylus, Quercus 2 18.12.032 18.12.033 304 pit fill +++ Quercus 18.12.018 18.12.020 301 pit fill ++++ ++++ Alnus/Corylus rw, Quercus 18.12.053 18.12.054 310 feature fill ++++ ++++ Alnus/Corylus Fraxinus 3 21.06.008 21.06.010 313 deposit ++++ Quercus, Alnus/Corylus 4 16.07.008 16.07.011 242 bowl furnace +++ Quercus (hw) 4 16.07.008 16.07.016 248 bowl furnace +++ Quercus, Alnus/Corylus Alnus glutinosa C14 C 4 16.07.019 16/07/20 251 pit fill ++ +++ Quercus, cf Maloideae rw mostly oak C 24.03.041 24.03.044 011 primary fill pit .041 ++ +++ Alnus/Corylus, Quercus hw predom Alnus/Corylus; q B small 5 24.03.89 24.03.090 017 pit .089 fill +++ Alnus/Corylus rw, Quercus rw 5 24.03.153 24.03.075 024 primary fill of ditch .074 +++ Quercus rw, Maloideae 24.03.153 24.03.076 025 secondary fill of ditch .074 +++ Quercus rw, Maloideae 5 24.03.153 24.03.020 027 ditch fill +++ Quercus rw, Alnus/Corylus 5 24.03.150 24.03.126 032 pit fill +++ Quercus hw, Alnus/Corylus rw 14.01.004 14.01.006 033 pit .004 fill +++ Alnus/Corylus Maloideae rw 2 2 2 2 2 2 5 5 5 + 197 B Maloideae, rw, Analysis Predom oak Predom (C14) oak; B Corylus B C v small C C rw, Quercus lots diffuse, Alnus/Corylus prob hw, A/B A/B Alnus glutinosa rw C14 B C rw, C not so much C C Prunus mostly <4mm C C rw, Mixed but q small B © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Period Generic/ fill of Context Sample Context type flot residue taxa 14.01.004 14.01.008 035 deposit + +++ Alnus/Corylus rw, Salix/Populus, A bit dusty Maloideae, Ulex/Cytisus A/B 14.01.107 14.01.046 037 primary fill of terrace +++ .012 ++++ Alnus/Corylus rw, Prunus Maloideae rw, Quercus rw Q mixed, good size A/B 14.01.034 14.01.035 038 hearth .034 fill +++ +++ Alnus/Corylus rw, Quercus rw q small C 14.01.036 14.01.037 039 posthole fill +++ +++ Alnus/Corylus Maloideae rw lots roundwood B 14.01.038 14.01.039 044 pit .038 fill +++ ++++ Alnus/Corylus rw, Maloideae Quercus rw, Prunus rw Mixed, good pres A 5 14.01.106 14.01.066 046 ditch .064 fill +++ Quercus rw, Alnus/Corylus v small C 5 14.01.106 14.01.070 050 ditch fill +++ Alnus/Corylus rw, Quercus 14.01.038 14.01.079 053 pit .038 fill +++ ++++ Alnus/Corylus Quercus rw 14.01.038 14.01.080 054 pit .038 fill +++ ++++ Alnus/Corylus Quercus rw 14.01.107 14.01.084 056 fill of terrace .083 ++ ++++ 14.01.081 14.01.082 057 fill of natural + depression .081 5 14.01.105 14.1.22 042 10 24.03.036 24.03.038 10 24.03.036 10 5 5 5 5 5 5 5 5 5 10 10 notes rw, Salix/Populus, rw, rw, C Maloideae rw, rw, Analysis Prunus rw, mostly oak, some massive B frags rw, predom oak B Quercus hw mostly oak C ++++ Alnus/Corylus rw, Quercus mostly oak C Ditch fill ++ Ulex/Cytisus, Alnus/Corylus 007 second fill pit .036 +++ Quercus rw, Prunus rw mostly <4mm C 24.03.037 008 primary fill pit .036 ++ Alnus/Corylus rw, Quercus rw mostly small C 24.03.036 24.03.040 009 fifth fill of pit .036 ++ Ulex/Cytisus rw, Quercus rw 24.03.036 24.03.078 013 same as 24.03.037 +++ Alnus/Corylus Ulex/Cytisus 24.03.036 24.03.081 016 same as 24.03.040 +++ Alnus/Corylus Ulex/Cytisus 14.01.090 058 charcoal layer ++++ Alnus/Corylus rw, Quercus q small C 10 rw, rw, C C Quercus, Quercus predom oak rw, C C 10 12.05.013 12.05.014 225 pit .013 +++ +++ Alnus/Corylus rw, Fraxinus predom Alnus/Corylus A 10 12.05.013 12.05.016 226 pit.013 +++ ++++ Alnus/Corylus predom Alnus/Corylus A 10 12.05.009 12.05.010 227 pit ++ Fraxinus 198 A © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Period Generic/ fill of Context Sample Context type flot residue taxa notes Analysis 10 12.05.011 12.05.012 228 Pit +++ +++ Alnus/Corylus, Quercus, Fraxinus Q mixed but q small A 12.05.009 12.05.015 229 Pit ++++ ++++ Fraxinus rw, Alnus/Corylus mostly ash A 12.05.019 12.05.022 231 Pit ++ Quercus, Maloideae Maloideae C14 B 12.05.004 12.05.005 233 pit ++ +++ Alnus/Corylus rw, Quercus predom Alnus/Corylus A 12.05.004 12.05.006 234 pit +++ +++ Alnus/Corylus Quercus a bit small A 10 12.05.004 12.05.007 235 pit +++ ++++ Alnus/Corylus rw, Quercus A 10 12.05.004 12.05.008 236 pit +++ ++++ Alnus/Corylus rw, Quercus A 16.07.017 16.07.018 250 pit fill, 16.07.017 ++++ ++++ Alnus/Corylus Fraxinus 10 16.07.040 16.07.041 263 fill +++ ++ Quercus hw predom oak C 10 16.07.040 16.07.042 264 fill +++ +++ Quercus hw predom oak C 10 16.07.056 16.07.057 274 feature fill +++ ++ Quercus hw, Fraxinus rw predom ash B 16.01.004 276 charcoal spread ++ ++++ Alnus/Corylus, Quercus 16.01.006 278 burnt natural ++ ++ Quercus, Maloideae, Alnus/Corylus 16.01.007 16.01.008 279 charocal fill ++++ >1000 Quercus, Maloideae 16.01.009 16.01.011 280 fill ++++ ++++ Quercus hw, Betula type predom oak A/B 16.01.009 16.01.010 281 charcoal spread +++ ++++ Quercus rw, Alnus/Corylus, Betula predom oak type A/B 16.08.020 16.08.021 299 pit fill +++ ++++ Alnus/Corylus rw, Maloideae, Quercus B/C 10 18.12.015 18.12.017 303 fill ++++ ++++ Alnus/Corylus rw, Quercus rw 10 18.13.004 18.13.006 305 fill ++ ++ Alnus/Corylus rw predom Alnus/Corylus C 10 18.13.004 18.13.007 306 feature fill ++++ +++ Alnus/Corylus rw, Quercus predom Alnus/Corylus B 10 10 10 10 10 10 10 hw, Quercus, Fraxinus, Prunus, Maloideae, rw, Maloideae, lots diffuse, Alnus/Corylus rw, Maloideae 10 10 199 rw, B rw, mostly oak, but diffuse as B well 10 10 prob C mostly oak, massive residue charcoal, good B pres Alnus/Corylus, Fraxinus rw, Q mixed but infused B © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Period Generic/ fill of Context Sample Context type flot residue taxa notes Analysis 10 18.12.043 18.12.044 307 pit fill +++ +++ Quercus hw predom oak C 10 18.13.011 18.13.012 308 feature fill ++ ++ Alnus/Corylus rw, Quercus ? 19.08.004 19.08.005 311 pit fill +++ +++ Ulex/Cytisus rw, Prunus rw mostly Ulex/Cytisus A/B 10 19.07.004 19.07.005 312 pit fill ++++ +++ Ulex/Cytisus rw, Quercus rw mostly Ulex/Cytisus A 10 33.01.006 33.01.007 316 pit +++ ++++ Alnus/Corylus rw, Quercus A 10 33.01.006 33.01.008 317 pit ++++ +++ Alnus/Corylus rw, Quercus hw A 10 12.05.019 12.05.020 237 Pit fill ++++ Fraxinus rw, hw, Quercus predom ash but q mixed A 10 12.05.019 12.05.021 238 pit +++ Alnus/Corylus, Maloideae, Quercus q small A 10 16.07.028 16.07.030 253 metalworking +++ Quercus small B/C 10 16.07.043 16.07.046 267 fill +++ Quercus hw, Alnus/Corylus predom oak C 10 16.07.043 16.07.047 268 fill +++ Quercus hw, rw predom oak C 10 Site 24.02 trench 1 deposit 01.05 04 001 ditch .04 fill ++++ Quercus predom oak; covered with C sediment ++ ++++ 200 C © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 14.4 Charcoal with potential for further analysis and identification for radiocarbon Period Site Sample Context Feature 10 10 10 10 10 2 10 7 2 10 10 10 10 10 3 10 3 4 7 7 7 7 7 7 7 7 3 3 3 3 3 3 10 10 10 2 2 2 2 2 10 10 10 10 10 10 10 10 10 10 10 10 10 OTA 4.01 OTA 4.01 OTA 3.04 OTA 3.04 OTA 3.04 OTA 3.04 OTA 3.04 OTA 05.01 OTA 02.03 OTA 5.01 OTA 5.01 OTA 5.01 OTA 5.01 OTA 4.10 OTA 4.10 OTA 4.10 ATK 13.02 ATK 13.02 ATK 13.02 ATK 13.02 ATK 13.02 ATK 13.02 ATK 13.02 ATK 13.02 ATK 13.02 ATK 13.02 ATK 14.09 ATK 14.09 ATK 14.09 ATK 14.09 ATK 14.09 ATK 14.09 ATK 12.10 ATK 14.09 ATK 15.02 FTC 02.02 FTC 02.02 FTC 02.02 FTC 02.02 FTC 02.02 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05 FTC 12.05w FTC 13.03 FTC 13.03 FTC 13.03 FTC 13.03 FTC 13.03 FTC 14.01 FTC 14.01 FTC 14.01 063 064 068 069 070 073 078 170 174 175 179 182 183 212 213 214 110 143 152 154 159 160 161 163 164 165 202 203 204 205 207 209 284 287 288 290 291 292 293 294 225 226 227 228 229 231 233 234 235 236 237 238 239 205.012 205.005 3.04.032 03.04.039 03.04.037 03.04.092 03.04.020 05.01.023 02.03.005 05.01.050 05.01.059 05.01.043 05.01.034 04.10.005 04.10.017 04.10.021 13.02.176 13.02.124 13.02.212 13.02.209 13.02.229 13.02.223 13.02.202 13.02.232 13.02.233 13.02.234 14.09.008 14.09.009 14.09.010 14.09.011 14.09.006 14.09.020 12.10.007 14.09.023 15.02.005 02.02.005 02.02.008 02.02.007 02.02.011 02.02.014 12.05.014 12.05.016 12.05.010 12.05.012 12.05.015 12.05.022 12.05.005 12.05.006 12.05.007 12.05.008 12.05.020 12.05.021 12.05w.007 Crem 205.004 Crem 205.004 Pit 03.04.031 Pit 03.04.038 Pit 03.04.036 Pit 03.04.096 02.04.004 05.01.049 02.03.004 Ditch 05.01.020 Ditch 05.01.020 Ditch 05.01.020 Ditch 05.01.020 Pit 04.10.004 Pit 04.10.016 Ditch 04.10.018 Ditch 13.02.175 Ditch 13.02.123 13.02.272 13.02.272 Pit 13.02.228 Pit 13.02.222 SFB 13.02.272 Pit 13.02.228 Pit 13.02.228 Pit 13.02.228 Pit 14.09.016 Pit 14.09.016 Pit 14.09.016 Pit 14.09.016 Pit 14.09.003 Pit 14.09.018 Pit 12.10.006 Ditch 14.09.021 Ditch 15.02.018 Pit 02.02.004 Pit 02.02.006 Pit 02.02.006 Pit 02.02.010 Pit 02.02.013 Pit 12.05.013 Pit 12.03.013 Pit 12.05.009 Pit 12.05.011 Pit 12.05.009 Pit 12.05.019 Pit 12.05.004 Pit 12.05.004 Pit 12.05.004 Pit 12.05.004 Pit 12.05.019 Pit 12.05.019 Furnace 12.05w.004 Soil to process? N N N N Y Y N Y Y Y Y Y Y N N Y N N Y Y N N Y N N N N N N N N N N Y Y Y N Y Y Y Y Y N N Y Y Y Y Y Y N Y Y 003 185 191 192 193 33 35 37 10.09 13.03.030 13.03.057 13.03.051 13.03.045 14.01.006 14.01.008 14.01.046 Ditch 13.03.011 Ditch 13.03.011 Ditch 13.03.004 Ditch 13.03.004 Ditch 13.03.004 Pit 14.01.004 Pit 14.01.004 Terrace 14.01.107 Y Y Y Y Y N N Y 4/5 4/5 4 4 4 5 5 5 201 Potential sample? Y Y Y C14 Y Y Y Y Y Y Y Y Y Y Y Y Y Y (one date already) Y Y Y Y Y Y Y Y (one date already) Y Y Y Y Y Y Y Y Y Y Y Y Y © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Period Site Sample Context Feature 5 5 5 5 5 5 5 5 5 10 10 10 10 10 10 4 4 4 4 4 4 10 10 10 10 10 10 10 10 10 10 10 2 10 2 10 2 10 10 10 10 10 3 10 10 10 5 10 10 10 5 5 5 5 10 10 FTC 14.01 FTC 14.01 FTC 14.01 FTC 14.01 FTC 14.01 FTC 14.01 FTC 14.01 FTC 14.01 FTC 14.01 FTC 14.01 FTC 16.01 FTC 16.01 FTC 16.01 FTC 16.01 FTC 16.01 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.07 FTC 16.08 FTC 18.12 FTC 18.12 FTC 18.12 FTC 18.12 FTC 18.12 FTC 18.13 FTC 18.13 FTC 18.13 FTC 19.07 FTC 19.08 FTC 21.06 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 24.03 FTC 33.01 FTC 33.01 38 39 42 44 46 50 53 54 57 58 276 278 279 280 281 241 242 245 246 247 248 250 253 256 258 259 262 263 267 268 274 299 301 303 304 307 310 305 306 308 312 311 313 7 8 9 11 13 16 17 24 25 27 32 316 317 14.01.035 14.01.037 14.01.022 14.01.039 14.01.066 14.01.070 14.01.079 14.01.080 14.01.082 14.01.090 16.01.004 16.01.006 16.01.008 16.01.011 16.01.010 16.07.012 16.07.011 16.07.013 16.07.014 16.07.015 16.07.016 16.07.018 16.07.030 16.07.026 16.07.023 16.07.022 16.07.039 16.07.041 16.07.046 16.07.047 16.07.057 16.08.021 18.12.020 18.12.017 18.12.033 18.12.044 18.12.054 18.13.006 18.13.007 18.13.012 19.07.005 19.08.005 21.06.010 24.03.038 24.03.037 24.03.040 24.03.044 24.03.078 24.03.081 24.03.090 24.03.075 24.03.076 24.03.020 24.03.126 33.01.007 33.01.008 Hearth 14.01.034 PH 14.01.036 Ditch 14.01.105 Pit 14.01.038 Ditch 14.01.106 Ditch 14.01.106 Pit 14.01.038 Pit 14.01.038 Pit 14.01.081 Layer 14.01.090 Layer 16.01.004 Layer 16.01.006 Pit 16.01.007 Pit 16.01.009 Pit 16.01.009 Furnace 16.07.008 16.07.008 16.07.008 16.07.008 16.07.008 16.07.008 Pit 16.07.017 Furnace 16.07.077 Furnace 16.07.024 Furnace 16.07.021 16.07.021 Pit 16.07.037 Furnace 16.07.040 16.07.077 16.07.077 Furnace 16.07.055 Pit 16.08.020 Pit 18.12.018 Pit 18.12.015 Pit 18.12.032 Pit 18.12.043 Pit 18.12.053 Pit 18.13.004 Pit 18.13.004 Pit 18.13.011 Pit 19.07.004 19.08.004 SFB 21.06.008 Pit 24.03.036 Pit 24.03.036 Pit 24.03.036 Pit 24.03.041 Pit 24.03.036 Pit 24.03.036 Pit 24.03.089 Ditch 24.03.153 Ditch 24.03.153 Ditch 24.03.153 Pit 24.03.150 33.01.006 33.01.006 202 Soil to process? Y N Y Y N N Y Y N Y N N Y N N Y N Y N N N Y N Y Y Y N N N N Y Y Y N N N Y Y Y Y N N Y N N N Y N Y N Y Y Y N Y N Potential sample? C14 Y Y Y Y Y Y Y Y (one date already) Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y (one date already) Y Y Y SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 15: THE CHARRED PLANT REMAINS BY WENDY CARRUTHERS Methodology The flots were gently dry-sieved to make rapid scanning of the charred plant remains easier and in order to remove large charcoal (sieve meshes = 3mm, 1.3mm and 0.25mm). The term ‘Charred plant remains’ in this report includes fruits and seeds, plus a few other identifiable items such as tubers. For an assessment of charcoal (see Challinor, this volume). Identifiable-sized large charcoal was retained in the large meshed sieve (sieve mesh 3 mm). It was roughly quantified (see Table 15.1: approximate volume in ml.), checked through for large nutshell fragments and fruit stones etc., and then sent to the charcoal specialist for assessment. The remaining fractions were rapidly scanned under an Olympus SZX7 stereoscopic microscope at x10 magnification (increasing up to x50 where necessary). Charred plant remains were noted and were sometimes placed in glass tubes for protection, but the tubes were left in their sample bags. Full quantifications and identifications were not carried out, however, since assessment of the state of preservation, rough characterisation of the assemblages, and assessment of the overall potential and were the main objectives of this report. The potential of each sample has been coded as follows; A and A* = very high potential on archaeobotanical grounds alone. Material may be very well preserved, frequent, unusual, or present in an important archaeological context or period. B = good potential. Identifiable remains are present in reasonable quantities. Value is usually increased if several ‘B’ samples are examined from a structure or period. B/C = good remains but not very frequent. The sample can be upgraded to B if more soil is available for processing. Value is also increased if several samples can be examined together as a group. C = remains may be scarce or poorly preserved but some information can be recovered, particularly if more soil is available for processing. D = no further potential. No remains, or unidentifiable remains, or remains already fully sorted and identified. The author recommends that A*, A, B and B/C samples are fully analysed in the post-excavation program, and that, where possible, the remaining soil is processed. For a few samples, where charred remains are abundant, processing of all of the remaining soil may not be necessary, but this information is given in Tables 1-3. Samples graded ‘C’ can be selected for analysis by Project Managers if the context is particularly important, or specific questions need answering, if more soil is available for processing. The results of the assessment have been discussed in three sections below. To save repetition, recommendations are given in each section. However, a final table summarises the list of samples recommended for further analysis (Table 15.4). SECTION I: OTTERY ST MARY TO AYLESBEARE (OTA 06) Forty-nine environmental soil samples were taken from this section of the pipeline and out of these, ten flots were assessed by the author. The results are presented in Table 14.1. Where charred plant macrofossils were observed, the samples are briefly described site by site below and recommendations for further work are given. 203 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Site 1.03 Period 7 (C12th – C14th AD) Deposit 01.03.005, the fill of pit 01.03.004 produced a useful assemblage of oat (Avena sp.) and rye (Secale cereale) grains in a reasonable state of preservation. A few weed seeds were present (corn marigold (Chrysanthemum segetum) and wild radish (Raphanus raphanistrum)), and these indicated that the cereals had been grown on acidic, sandy soils. The assemblage appears to represent processed grain either from two crops or from a mixed rye/oat maslin. Rye and oats are the most suitable crops for sandy, acidic soils and they were commonly grown in south-west England and Wales in the medieval period. Recommendation - If the remaining 10L soil is processed from this sample, further information about crop husbandry will probably be recovered. Site 2.03 Period 2 (Middle .Neolithic) Pit 02.03.004 yielded Peterborough Ware dating it to the Middle Neolithic period. The charred grain assemblage, however, was more characteristic of a later prehistoric date (at least MBA because of the presence of spelt chaff). Fill 02.03.005, contained frequent large charcoal and a reasonably well preserved assemblage of emmer/spelt grain (Triticum dicoccum/spelta), with a number of weed contaminants and some spelt chaff. Breadtype wheat (T. aestivum-type) and possible oats (Avena sp.) were also observed. The weeds noted during the assessment were common weeds of cultivated ground such as black bindweed (Fallopia convolvulus), but weeds with more specific habitat requirements may be recovered if the remaining soil is processed and the flot is fully sorted. The assemblage appears to represent burnt processed grain mixed with other domestic waste, since hazelnut shell ((HNS) Corylus avellana) was also present. Recommendation – Because of the ambiguous nature of the evidence it is important to double float (if clayey) the remaining 10L and date a well-preserved cereal grain. Site 3.04 Four samples from this site produced charred plant remains, but the quantities and state of preservation were poor, with erosion and silt encrustation causing identification problems. This is probably due to the silty, alluvial soils in this area. In addition, two samples were incomplete (the coarse flots – where most cereal grains would be found - were missing from samples 72 and 73). As described below, further soil processing and the examination of residues is likely to be worthwhile. Period 2 (E.Neo) The fill of pit 03.04.096, context 03.02.092, produced only two eroded cf. emmer/spelt wheat grains recovered from the residue. However, the coarse flot was not present, so processing the remaining 20L of soil may produce a useful assemblage. Since early Neolithic pottery was present in this context, radiocarbon dating is a priority (Andy Mudd, pers.comm.). Recommendation – It would be worth processing the remaining soil from this sample as it is the earliest sample to produce cereals from the three pipeline sites. If clayey, the sample should be double-floated and the residue should be carefully checked by the author for encrusted chaff fragments. Any identifiable grain should radiocarbon dated. 204 be SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Period 5 (Romano-British) The fill of ditch 03.04.045, context 03.04.088, produced only a very poorly preserved cf. hazelnut shell fragment from the residue (Sample 72). However, as the coarse flot was not seen, additional material may have been missed. Roman pottery was found in this context. Samples from two ditch fills were assessed (Ditches 03.04.064 and 03.04.095). The small flots produced no remains but single emmer/spelt wheat grains were obtained from each of the residues. Information about the Romano-British arable economy appears to be much more readily available from the Site FTC 06 samples. Recommendation – Most material from this period comes from FTC 24.03 so further information from this site would add to the picture. If the remaining 10L of soil from sample 72 were processed and the residue checked for encrusted chaff fragments, useful information about Romano-British arable agriculture may be obtained. SECTION II: AYLESBEARE TO KENN (ATK 06) Ninety-three environmental soil samples were taken from this section. Twenty flots were assessed by the author. These came from two sites – medieval to post medieval features in Site 13.02 and Middle Bronze Age to Iron Age features in Site 14.09. Site 13.02 Period 7 (Medieval) Four samples from ditches (ditches 13.02.069, 13.02.113, 13.02.103 and 13.02.244) produced sparse, poorly preserved, eroded and fragmented grains indicating that the burnt waste had probably been lying around the site before being washed into the ditches, rather than being deposited as waste. These remains may represent domestic waste and midden material that had been spread on the fields as fertiliser. Indeterminate wheat, oats and rye were noted, though most of the grains were too poor to be identified. Recommendation - It is probably not worth looking at more material from these features due to the damage done during redeposition, unless particular questions need to be answered. Two hearths were assessed; 13.02.132 and 13.02.204. Preservation was poor, probably because material had been repeatedly cleaned out and re-burnt – it was notable that no large charcoal was present. However, identification was possible for some remains and more soil is available for both samples (103 and 166). If these were both domestic hearths it would be worth examining the remaining samples in detail, since in this way it can be possible to differentiate between cereals that were being used for human food and cereals being grown primarily for fodder. Comparisons can then be made with other burnt waste from around the site. Bread-type wheat, rye and oats were identified from the two small subsamples. Crop processing waste can also be found in hearths, since contaminants picked by hand during cooking were often thrown into the fire. Recommendation – process the remaining 20 litres. 205 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Layer 13.02.193 produced a small assemblage of rye, oats and weeds of acidic soils (corn marigold, corn spurrey (Spergula arvensis)). Since this layer represents the former floor surface of the long house, its importance is similar to that of the hearths. Recommendation - Although material on floor surfaces can be poorly preserved, a large amount of soil was taken (40 litres in total). It would be worth processing the remaining 30 litres of soil to recover information about food processing and, possibly, floor coverings. Five samples from the SFB were assessed, including a floor layer (context 13.02.203), three fills (contexts 13.02.212, 13.02.213 and 13.02.202) and a build up layer (context 13.02.209). Frequent oats and rye grains were present in most samples and a range of weed seeds and some rye chaff was present. Cultivated vetch was tentatively identified in one sample, providing possible evidence of an additional fodder crop. It is likely that this structure had been used to house livestock or store crops, since cereal remains were much more frequent than in other samples. Recommendation – although cereal grains were frequent in some of the samples it would be worth processing the remaining soil in most cases in order to recovered scarce evidence of crop weeds and chaff. Charred chaff is rare on medieval sites because of the free-threshing nature of most of the crops. However, cereals such as cultivated and bristle oats, or rivet wheat and bread wheat can only be positively identified where chaff is present. The recovery of more arable weed seeds will help to provide information about crop husbandry. Definite evidence for cultivated vetch, and evidence for leguminous crops such as peas and beans, or flax, fruits and nuts may also be found. This is an interesting feature that requires full investigation. Two samples from pit 13.02.228 (samples 163 and 164) produced well preserved, abundant evidence of rye, with some oats, barley, bread-type wheat and a possible large legume such as Celtic bean (Vicia faba var. minor). Charcoal from this pit was frequent and consisted of roundwood twigs. This may be gorse, since a gorse (Ulex sp.) seed was present. A few arable weed seeds were present as contaminants. Recommendation – this is an interesting feature with well-preserved charred material, i.e. differential preservation will be less of a problem in these samples so the results will be less biased. Period 8 (Post-Medieval) Sample 093 from an early Post-Medieval pit 13.02.174 contained some large charcoal and several poor, eroded cereal grains. These included rye and the arable weed, corn marigold, showing that the local acidic soils were being cultivated and routine liming was not yet occurring. A post-medieval ditch fill, context 13.02.110, (ditch 13.02.109 – sample 111) contained a similar poor, eroded sparse assemblage to the Period 7 ditch samples, including an oat grain. Recommendation – if economic information about this period is required to complete the sequence of ‘changes through time’ (or ‘lack of changes’ in this case), the remaining soil (30 litres) from sample 093 should be processed. A C16th-C18th pit fill, context 13.02.152 (pit 13.02.268, part of a ditch alignment), produced a small flot with a few fragments of possible walnut shell (cf. Juglans regia) in the residue. The flot only contained gorse spine fragments and a corn marigold seed. 206 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Recommendation – The walnut identification will be checked as it is of interest. If confirmed, it suggests a fairly high status occupant. Site 14.09 Period 3 (MBA) Two samples from pit 14.09.016 were examined (contexts 14.09.009 and 14.09.011). MBA pottery has been recovered from these contexts (Andy Mudd, pers.comm.) and a radiocarbon date of 1627-1504 cal BC was obtained on hazel charcoal from context 14.09.009. Only small amounts of soil were available from these deposits (4 litres each), so the fact that a few cereal grains were recovered is significant. The grain was poorly preserved and difficult to identify, but deposit 14.09.011 produced bread-type wheat and barley grains. Recommendation –It would be worth double-floating the residues from samples 203 and 205 to see whether the sparse remains represent ritual deposition. The poorly preserved, eroded state of the grains could suggest the material had been left exposed for some time or was damaged during redeposition. Undated (Period 10) Sample 287 from a ring-ditch fill, context 14.09.052, produced an interesting assemblage of crop processing waste. As a spelt glume base (Triticum spelta) was present the assemblage appears to be prehistoric in date. Although the cereal grains were vacuolated and poorly preserved (a sign of high-temperature charring), in contrast stem bases (culm bases) were present and weed seeds such as black bindweed were frequent. These remains would be destroyed in high temperatures, so mixed waste must be present. Culm bases suggest uprooting of crops rather than cutting with sickles. This type of harvesting was recently found in Late Bronze Age ditch deposits at Heathrow (Carruthers, 2006). Recommendation – it is recommended that the remaining soil 10L left is gently processed to recover the maximum information concerning crop husbandry and harvesting methods. N.B. delicate remains may survive in this sample. The author would like to check the residue from this sample and see if a second floatation is required. A C14 date is highly recommended. SECTION III: FISHACRE TO CHOAKFORD (FTC 06) One hundred and forty-one samples were taken from this section of the pipeline, all of which were assessed for this report. Site 02.02 Period 2 (Neolithic) Samples from four pit fills (contexts 02.02.005, 02.02.007, 02.02.008, 02.02.011) contained frequent to abundant fragments of hazelnut shell, almost all of which was extracted from the sample residues. Large charcoal fragments were common. The only other object was a possible tuber fragment. It is interesting that no cereal remains have yet been recovered, since many Neolithic sites produce evidence of both arable agriculture and a strong reliance on gathered foods. This could suggest a very early date, or temporary, perhaps seasonal nature of the occupation. It could also indicate very small scale arable cultivation which would produce very low levels of burnt waste. The presence of probable Late Neolithic pottery contradicts the first explanation, although an early 207 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology date of 3339-3095 cal BC was obtained from a fragment of HNS. Perhaps this feature was used for ritual deposition over a period of time. More dates will be needed to resolve this anomaly. Recommendation – process the remaining soil 80L in total to see whether scarce cereal remains can be found, to clarify the nature of the economy and resolve the dating problem. Residues must be sorted carefully for small cereal grains and weed seeds amongst the large HNS fragments. Period 10 (undated) Two samples (294 and 295) from fills of pit 02.02.013 were assessed. Although only small numbers of poor grain fragments and small HNS fragments were observed, the subsamples were small. As this feature was within a group of Late Neolithic (Grooved Ware) pits (Andy Mudd, pers. comm.) the remaining soil should be processed. Recommendation – process the remaining 20 litres of soil and sort the residues carefully, since alluvial soils often cause silt encrustation on seeds making them fail to float. Three samples from the fills of two other undated pits in this group, pits 02.02.016 (contexts 02.02.017) and 02.02.018 (02.02.019, 02.02.020), produced frequent HNS fragments from the residues, supporting a possible Neolithic date. Recommendation – The remaining 30 litres of soil should be processed to help in the search for cereal remains from Period 2 (assuming they date to this period). C14 dates should be obtained. If clayey, double floatation should be used. Site 12.05 Period 10 (undated) – Of the twelve samples from this site assessed by the author from pit fills, three produced food remains consisting of a small amount number of cereal grains, a fragment of sloe/plum (Prunus sp.) stone and a small HNS fragment. It is uncertain whether the pits are domestic or funerary features. If further soil were processed this question may be answered. Clearly, some material would need to be dated to make this information useful. Recommendation – process the remaining 20 litres of soil from samples 228, 229 and 235 and obtain dates for these features. Site 14.01 The samples were notable in producing possible evidence for the extraction of oil from flax seeds. Period 5 (Romano-British) The following features contained black melted slaggy fragments and some recognisable half-melted flax capsules with traces of seeds still inside; pit 14.01.034 and two fills in pit 14.01.038 (contexts 14.01.039 and 14.01.080). Pit 14.01.038 also contained a few cereal grains (emmer/spelt, oat) and a Celtic bean (Vicia faba var. minor). Recommendation – It would be worthwhile processing all of the remaining soil from these three samples total of 40L in order to investigate this very unusual and important information about an industrial process. Although known to have taken place, the extraction of oil from seeds has rarely been demonstrated in archaeological deposits. Flax processing waste (consisting of small capsule fragments and seeds) is fairly common in 208 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology waterlogged deposits. During processing, flax capsules are broken into fragments by a process called ‘rippling’. Because these capsules appear to have been burnt whole, oil extraction is much more likely. For this reason, full analysis of these deposits is highly recommended. Site 16.07 This site produced a number of bowl furnaces and areas of burning. Bowl furnace 16.07.008 has been C14 dated to 3rd-4th century BC (Period 4, IA), so the other furnaces are likely to be the same date (Andy Mudd, pers.comm.). Only one sample from the furnaces contained economic evidence (sample 247), and this was bowl furnace 16.07.008. A black bindweed seed and three possible poor emmer/spelt wheat grains were recovered from the sample. It may be worth processing more soil from the unproductive furnaces in the hope that more economic and dating evidence is found. Cereal processing waste was often used as tinder and fuel for furnaces and ovens. Recommendation – Process more soil from all furnaces (samples 241, 245, 250, 256, 258, 259, 274) and fully sort the flot from sample 247. Site 16.08 Period 10 (undated) Pit 16.08.020 produced a well-preserved assemblage of mixed oats and barley in roughly equal proportions. This appears to have been a mixed crop, dredge, which was fairly frequently grown from the Early Medieval period onwards, with documentary records increasing from the C13th (Beavan, 1947, p.49). It would be worth processing the remaining 20 litres to specifically examine weed/crop associations, so as to help determine why this crop was being grown on the local silty clay soils. Recommendation – process the remaining 20 litres of soil and date the assemblage. Site 18.12 Period 2 (Early Neolithic) The fills of two pits (18.12.018 and 18.12.032) were assessed (samples 301 & 304 respectively). The secondary fill of pit 18.12.018 contained frequent HNS in the residue, but no other charred remains were observed. Pit 18.12.053 contained frequent HNS fragments in fill 18.12.054 (sample 310). From the plant assemblage, this appears to be an early prehistoric feature (Neolithic or BA). Recommendation – It would be worth processing the remaining 20 litres of soil from sample 301, fill 18.12.020, in order to see whether cereals were being cultivated during this period. The remaining 30 litres of soil from sample 310 should be processed to look for cereal remains and a C14 date sought. Period 10 (undated) The primary fill of pit 18.12.015 (sample 303) produced a barley-rich assemblage, which is unusual for sites in Devon on acidic, sandy soils. A maslin with oats may have been grown (dredge or drage), although oats were much less frequent in this sample. A more convincing assemblage of dredge was observed in a pit in Site 16.08, but unfortunately this was also undated. Dredge was frequently grown in the Early and Later Medieval periods as a way of ‘hedging a farmer’s bets’. It was often used for fodder and for brewing. 209 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Recommendation – date some grains and analyse the deposit fully. Site 18.13 Period 10 (undated) Pit 18.13.004 produced HNS in the residues from two samples (305 and 306). A moderate number of small to medium sized fragments was present. Since features containing Late Neolithic pottery were located nearby at site 18.12 and very similar assemblages came from some of these features, it is likely that 18.13.004 was associated with this period of activity. Therefore, it would be worth looking for cereal remains in the remaining unprocessed soil, to see if the activities were of a transitory or more settled nature. Recommendations – process the remaining 20 litres soil to look for cereal remains and date the assemblage. Site 19.07 Period 10 (undated) Pit 19.07.004 contained an interesting assemblage of vacuolated but not eroded oats and rye, together with gorse spines, bracken fragments and some burnt twine. Was this a bundle of material that had been burnt, perhaps being brought to livestock for fodder? Recommendations – Is probably a medieval asembalge, but needs dating Site 21.06 Period 3 (Bronze Age) This deposit consisted of the fill of SFB 21.06.008. The sample was interesting in character in that it contained a poor barley grain, but also a wide range of weed seeds (general weeds of disturbed and cultivated soils such as black bindweed, cleavers). In addition, small charred pellets of dung were present (c. 8mm x 3mm cylinders). Being charred, these are unlikely to be modern rabbit droppings unless stubble burning had been taking place. They did not appear to be modern (i.e. half-charred) although more work needs to be done to try to identify them. They could represent sheep/goat droppings from livestock that had been housed in the SFB and fed on crop processing waste and weedy hedgerow clippings etc. An unexpectedly early date was obtained on the barley grain (1385-1194 cal BC), and in view of its poor state of preservation it is possible that this represents residual material. If the remaining soil is processed, more suitable cereal remains may be found to date (hopefully something characteristic of later assemblages, such as a well-preserved rye grain). Recommendation – If the provenance of this sample is considered secure and it is dateable, further work may help to reveal the function of the SFB. (Twenty litres of soil remains to be processed). Site 24.03 Period 5 (Roman) Of the nineteen samples from this phase and Site assessed, seven produced good assemblages of emmer/spelt grain and processing waste, with frequent chess caryopses being a very dominant contaminant or possible crop. All of these samples were from pit 24.03.036. These samples will provide useful information about crop husbandry during Period 5. Spelt wheat appears to have been the main cereal grown, with some oats and barley. Spelt is a demanding crop for poor soils, so it will be important to see whether there is evidence of soil impoverishment, manuring or the cultivation of leguminous crops to help maintain soil fertility. 210 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Recommendation – although nine samples (samples 007-010, 012-016) have been taken from this feature and plant remains are frequent, it would be worthwhile processing the remaining small amounts of soil (particularly from the primary fill) in order to maximise the crop husbandry information recovered from these well-preserved samples. This would not involve full analysis of all of the flots, but sub-sampling for chaff and cereals, then scanning for rarer weed seeds and legumes in order to recover weed ecology information. Quantification of chess may show whether it was grown as a crop or occurring as a pernicious weed. Site 33.01 Period 10 (undated) Samples 316 and 317 from the primary and secondary fills of possible cremation pit 33.01.006 produced frequent HNS fragments from the residues. Because these may be ritual in character it would be worth processing the remaining soil to be sure that no other types of foods were being burnt as offerings. Perhaps, rather than burning the hazelnuts whole as an offering, they were being consumed at a funerary feast, so only food waste would be found rather than whole cereal grains. This needs to be investigated further, particularly since similar deposits can be compared from other parts of the pipeline. Clearly, the feature would need to be dated for the information to be of any value. Recommendation – the primary fill has been fully processed, at least half of the 50 litres of secondary fill should be processed. The residues will need to be carefully and thoroughly sorted for cereal remains, particularly if the HNS is abundant. Subsamples of the residues should be sent to the author for checking. GENERAL DISCUSSION The main sources of information for the assessment of samples from this pipeline are presented in the tables and site-by-site descriptions, since the areas of human activity do not necessarily tie together in a coherent way at this stage in the investigations. However, a few general points of interest can be noted which may be of value in determining research priorities. 1. The Neolithic and Bronze Age samples (Periods 2 and 3) from several of the Devon Pipeline sites contained large quantities of hazelnut shell fragments (HNS) but very little evidence of arable cultivation in comparison with other areas of southern England. The acidic soils in the region are not ideal for arable cultivation, particularly where they are clayey in nature, so agriculture may have been predominantly pastoral until suitable ploughs were developed to cope with the heavy soils and cereals such as spelt were introduced in the Late Bronze Age/Early Iron Age (Jones, 1981). The scarcity of grain could also be because of the types of contexts being examined, as described by Campbell and Straker (2003) in their review of crop plants in southern England. Although cereals are generally scarce in Neolithic to Early Bronze Age deposits, a few Early Prehistoric houses with storage contexts have produced large quantities of cereal remains (Jones, 2000; Monk, 2000). Therefore, perhaps the lack of cereals in the Devon samples is due to the robust nature of HNS and fact that the preservation of cereals by charring is rare in contexts other than storage contexts, where grain is concentrated. For this to be demonstrated, sufficient soil must have been processed to be sure that small quantities of cereals are not being missed. In addition, double-floatation and residue sorting must be carried out where clay soils hamper floatation. An important advantage to this is that where sufficiently large soil samples have been examined in detail, it will be possible to use both negative and positive evidence in the discussion. As very few sites of this period have been investigated in Devon (Campbell & Straker, 2003), apart from the Honiton to Exeter section of the A30 (Clapham, 1999), it is important that as much information as 211 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology possible is retrieved from these samples. It is interesting to see that of the 7 Neolithic samples examined by Clapham (ibid.), only a few poor cereal fragments, one emmer spikelet fork (Castle Hill) and a large number of lesser celandine tubers (Long Range) were found. HNS fragments were not abundant at either site. It would be useful to compare dates from these sites with the Devon Pipeline samples, if they are available. 2. Radiocarbon dates have shown that activity dating to the MBA took place on sites in sections ATK and FTC, possibly associated with cremation in the former case. Although charred plant remains are rare in these samples, further soil processing may produce cereal grains and tubers that were burnt as offerings. 3. Of the Iron Age (Period 4) samples assessed, none contained cereal grains suggesting that the economy was predominantly pastoral at this time and occupation was probably short-lived. Only one poorly preserved hazelnut shell fragment was present (sample 072, ditch OTA 3.04.086). The Roman samples were more productive, perhaps because of improvements in crop husbandry techniques. Full analysis of large assemblages may provide sufficient weed seeds to demonstrate this using information from weed ecology. It will also be interesting to see whether leguminous crops were being grown to help improve soil fertility. The apparent cultivation of flax for oil during the Roman period is of great interest and should be fully investigated. 4. By the Medieval Period (Period 7) a range of crops were being grown in order to maximise yields on the poor acidic soils. Oats and rye appear to have been the main crops, but the small amounts of breadtype wheat may be a great under-estimation of the amount being consumed. Cultivated vetch had been introduced as a useful fodder crop that can help to maintain soil fertility. It would be interesting to date the two possible samples containing dredge, and other deposits such as SFB fill FTC 21.06.010, in order to see when and where these crops were grown. Full investigation of the Site ATK 13.02 samples may help to demonstrate which crops were being used for human consumption and which were being fed to livestock. They may also help to show how the different buildings were being used. Following full analysis, comparisons will be made with the A30 sites (Clapham, 1999), Membury (Neolithic & RB; Carruthers, unpublished) and Mothecombe (Dark Ages; Carruthers, unpublished assessment). 212 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 15.1 Charred plant remains from OTA section charcoal charred plant remains potential Vol. avail. 25ml flot, mainly silt, small charcoal 10ml lge char sent to Dana 0 D 0 B 0 10 20 10 Context Sample Tot Vol. Vol. processed Context type 205.004 205.012 063 20 20 cremation 205.004 208.004 209.004 01.03.004 205.005 208.005 209.005 01.03.005 064 004 005 173 10 20 30 20 10 10 10 10 cremation ditch fill ditch fill pit fill 10 10 10 7 / C12C14th 02.03.004 02.03.005 174 40 40 pit fill 2/M.Neo 03.04.004 03.04.004 03.04.006 03.04.013 074 075 10 10 10 10 primary ditch fill 5 ditch 03.04.012 primary fill 0 0 03.04.004 03.04.010 076 10 10 5 0 03.04.004 03.04.018 077 10 10 5 0 03.04.004 03.04.020 078 5 10 5 0 03.04.004 03.04.034 079 10 10 5 0 03.04.004 03.04.061 080 10 10 5/MBA? 0 03.04.004 03.04.065 081 10 10 03.04.004 03.04.069 082 10 10 03.04.004 03.04.094 083 10 10 basal fill of ditch 03.04.009 primary fill of ditch 03.04.017 third fill of ditch 03.04.017 basal fill of ditch 03.04.033 basal fill of ditch 03.04.061 ditch 03.04.064 fill basal fill of 03.04.068 fill of ditch 03.04.095 03.04.026 03.04.031 03.04.036 03.04.038 03.04.045 03.04.028 03.04.032 03.04.037 03.04.039 03.04.088 066 068 070 069 072 10 10 14 10 20 10 10 6 10 10 secondary pit fill pit fill pit fill pit fill secondary fill of ditch 03.04.086 period / spot date 10 flot description Generic/ fill of 5 75ml freq silt, 0 175ml flot, freq char & silt, freq black blobby slag 50ml char 5ml flot, small char silt, 0 lge oats +++; rye +++; Raphanus raphanistrum +; Chrysanthemum segetum+ emmer/spelt grain +++; oats +; Fallopia +; spelt glume base +; Persicaria sp.+ ;8 medium frags HNS 1 spelt-type grain A - C14 date C 5 5 10 3 10 10 5 0 0 0 5ml coarse flot only, occ lge char not extracted 0 SORTED REMAINS ONLY 0 SORTED REMAINS & FINE FLOT ONLY 213 1 emmer/spelt wheat grain; poor Rumex sp.+ MODERN 1 very poor, encrusted ridged ?nutshell frag, ID not confirmed C 0 B/C 0 0 8 0 10 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot Vol. Vol. processed Context type period / spot date 03.04.054 03.04.096 03.04.055 03.04.092 071 073 10 30 10 10 pit fill pit 03.04.090 fill 04.10.004 04.10.016 04.10.018 04.12.004 04.12.004 04.12.004 04.12.004 05.01.015 05.01.017 04.10.005 04.10.017 04.10.021 04.12.005 04.12.018 04.12.019 04.12.005 05.01.016 05.01.019 212 213 214 215 221 222 223 169 168 10 10 40 40 20 20 10 10 10 10 10 10 1 10 10 1 10 10 10 3 5 10 10 10 10 10 10 05.01.020 05.01.050 175 20 10 pit fill pit fill third fill of ditch primary ditch fill 13th ditch fill 14th ditch fill primary ditch fill pit fill secondary posthole fill primary fill of ditch 049 05.01.020 05.01.022 176 20 20 10 0 05.01.020 05.01.032 177 20 20 10 0 05.01.020 05.01.020 05.01.039 05.01.059 178 179 20 20 20 10 6th fill of ditch 05.01.021 primary fill of ditch 05.01.031ditch fill cut? primary fill of ditch 05.01.058 05.01.020 05.01.043 182 20 10 ditch fill 10 05.01.020 05.01.034 183 20 10 10 10 05.01.047 05.01.049 05.01.048 05.01.023 181 170 5 40 5 10 10 10 0 30 05.01.025 05.01.026 05.01.038 171 172 180 40 30 20 10 10 10 third fill of ditch 05.01.031 pit/posthole fill charcoal dump within ditch mound material mound material mound material 10 10 10 30 20 10 2/E.Neo 10 10 10 flot description charred plant remains potential SORTED REMAINS ONLY 0 SORTED REMAINS & FINE FLOT ONLY MODERN 2 poor eroded cf. emmer/spelt wheat grains B/C 0; C14 date SORTED REMAINS ONLY MODERN 5ml flot, small char 0 silt, 50ml silty flot, trace small char only 25ml silty flot, trace small char only 214 charcoal 2 small frags sent to Dana 2 small frags sent to Dana 0 Vol. avail. 0 20 0 0 30 39 10 10 9 0 0 D 0 0 D 0 10 0 D 10 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 15.2 Charred plant remains from ATK section Generic/ fill of Context Sample Tot vol Vol processed Context type period / spot date flot description 07.01.004 12.10.006 13.02.009 13.02.009 07.01.005 12.10.007 13.02.008 13.02.005 289 284 138 137 10 10 10 10 10 10 10 10 pit fill pit fill fill of ditch 13.02.007 fill of ditch 13.02.004 10 10 10 10 SORTED REMAINS ONLY MODERN SORTED REMAINS ONLY MODERN 13.02.009 13.02.016 139 10 10 fill of ditch 13.02.015 10 13.02.009 13.02.081 144 10 10 fill of ditch 13.02.080 10 SORTED REMAINS ONLY MODERN 13.02.010 13.02.110 111 10 10 Fill of ditch 13.02.109 8 / P.Med 10ml silt & small char 1 oat; 1 poor NFI cereal frag 13.02.010 13.02.014 113 10 10 fiil of ditch 13.02.113 7/C12-14 0 13.02.010 13.02.020 114 10 10 third fill 13.02.117 8/C16-18 0 13.02.045 13.02.067 13.02.073 13.02.046 13.02.072 13.02.070 088 092 090 30 20 20 10 10 10 posthole fill ditch fill fill of ditch 13.02.069 7 7 7/C12-C14 20 10 10 13.02.073 13.02.073 13.02.062 13.02.183 091 127 20 10 10 10 ditch fill fill of ditch 13.02.182 7 7 10 0 13.02.121 13.02.123 13.02.125 13.02.122 13.02.124 13.02.058 095 143 119 10 10 10 10 10 10 posthole fill ditch fill fill of ditch 13.02.057 7 4/M-LIA 8 0 0 0 13.02.125 13.02.056 120 10 10 fill of ditch 13.02.055 8 0 13.02.125 13.02.066 121 10 10 fill of ditch 13.02.055 8 0 13.02.125 13.02.075 122 10 10 fill of ditch 13.02.075 8 0 13.02.125 13.02.147 123 10 10 fill of ditch terminus 13.02.146 8 0 13.02.126 13.02.127 13.02.128 13.02.089 124 140 10 10 10 10 ditch fill fill of ditch 13.02.088 10 10 0 0 of ditch charcoal charred plant remains potential Vol avail 0 0 0 0 0 215 10ml silt & small charcoal 0 0 SORTED REMAINS ONLY poor vacuolated grain frags + MODERN 0 C C 0 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol Vol processed Context type period / spot date flot description 13.02.127 13.02.050 141 10 10 fill of ditch 13.02.049 10 SORTED REMAINS ONLY 13.02.127 13.02.079 142 10 10 fill of ditch 13.02.078 10 0 13.02.127 13.02.149 145 10 10 fill of ditch 13.02.148 10 0 13.02.132 13.02.132 13.02.132 13.02.132 13.02.133 13.02.134 13.02.135 13.02.136 097 098 099 100 10 110 30 10 10 10 10 10 hearth hearth deposit hearth deposit 7 7/C13-14 7/C13-15 7 13.02.132 13.02.158 101 40 10 layer within hearth 7 13.02.132 13.02.134 103 20 10 hearth 13.02.132 13.02.132 13.02.132 13.02.132 13.02.132 13.02.165 13.02.168 13.02.169 13.02.184 13.02.185 104 107 108 128 129 20 20 10 10 90 10 10 10 10 10 layer hearth rim hearth fill of hearth hearth surface 7 / m C1314 7/C13-14 7/C13-14 7 7 7/C12-14 13.02.132 13.02.132 13.02.186 13.02.187 130 131 40 10 10 10 deposit hearth deposit 7 7 30 0 13.02.132 13.02.188 132 30 10 clay surface 7 20 13.02.132 13.02.189 133 30 10 hearth layer 7/ C13-14 13.02.132 13.02.132 13.02.159 13.02.190 13.02.191 13.02.006 134 135 105 30 20 10 10 10 10 7/C12-14 7 8 13.02.159 13.02.163 13.02.174 13.02.160 13.02.192 13.02.097 106 136 093 10 40 40 10 10 10 hearth rim hearth shell dump ditch ditch fill pit fill pit fill 13.02.175 13.02.195 13.02.176 13.02.194 110 147 10 240 10 10 ditch fill make up ground 4 7 13.02.195 13.02.194 149 20 10 layer 7/C13-14 within charcoal charred plant remains potential MODERN SORTED REMAINS ONLY MODERN SORTED REMAINS ONLY MODERN Vol avail 0 0 100 20 0 30 8/C18 7/C12-14 8 / e P.Med 20ml freq silt, occ small char 0 SORTED REMAINS ONLY SORTED REMAINS ONLY B/C 10 10 10 0 0 80 MODERN MODERN 20 20 10 0 SORTED REMAINS ONLY MODERN 25ml silt charcoal rye +; very poor eroded grain frags +; alder seed +; Chrysanthemum segetum + & 10ml lge char SORTED REMAINS ONLY 216 poor eroded grain frag; 1 breadtype wheat; 3 rye; 2 oats MODERN C- 0 30 30 0 230 10 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol Vol processed Context type period / spot date flot description 13.02.210 13.02.222 13.02.228 13.02.228 13.02.211 13.02.223 13.02.229 13.02.232 148 160 159 163 5 10 10 5 5 10 10 5 postpad fill pit fill pit fill pit fill 7 7 7 7 13.02.228 13.02.233 164 10 10 pit fill 7 13.02.228 13.02.244 13.02.234 13.02.246 165 285 5 20 5 10 pit fill secondary fill of ditch 7 7 13.02.251 13.02.248 286 40 10 fill of ditch 13.02.247 7 13.02.267 13.02.140 115 10 10 Fill of pit 13.02.139 8/C16-18 13.02.267 13.02.268 13.02.268 13.02.120 13.02.033 13.02.152 116 117 118 10 10 10 10 10 10 pit fill pit fill pit fill 8/C16-18 8/C16-18 8 / C1618th SORTED REMAINS ONLY MODERN 5ml flot, occ sm char 13.02.269 13.02.114 094 10 10 fill of ditch 13.02.113l 7 / C12C14th 10ml silt & small char sev small frags cf. walnut shell; Chrysanthemum segetum +; gorse spine+ poor vacuolated frags cf. wheat +; poor oat/chess ++ 13.02.269 13.02.181 126 10 10 fill of ditch 13.02.178 7 13.02.270 13.02.012 112 10 10 fill of ditch 13.02.011 8/pmed 13.02.270 13.02.271 13.02.271 13.02.179 13.02.138 13.02.104 125 096 109 10 10 10 10 10 10 ditch fill ditch fill fill of ditch 13.02.103 7 7 7/C13-C14 SORTED REMAINS ONLY MODERN SORTED REMAINS ONLY very poor frag cf. cereal + C 0 0 0 13.02.272 13.02.212 152 20 10 fill of SFB 13.02.196 7 / C12C14th 10ml small & lge char 1 cf. Agrostemma githago frag; 1 poor cereal frag.; rye, oats, rye rachis ++ B/C 10 70ml char & silt 300ml flot with frequent twiggy charcoal 10ml flot, occ sm char charcoal 30ml mainly roundwo od 200ml mainly roundwo od 0 SORTED REMAINS ONLY 217 charred plant remains potential Vol avail rye +++; barley ++; bread-type wheat ++; Scleranthus anuus +. Good preservation A 0 0 0 0 Good preservation- rye +++; bread-type wheat +; rye/wheat +; oat ++; barley ++; cf. large legume +; weeds +++ (Chrysanthemum segetum); gorse + A 0 occ poor grain rye & oat C 0 10 MODERN 30 0 0 occasion al medium char not extracted SORTED REMAINS ONLY C 0 0 0 C 0 MODERN 0 0 10ml lge char © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol Vol processed Context type period / spot date flot description charcoal charred plant remains 13.02.272 13.02.213 153 10 10 fill of SFB 13.02.196 7 10ml charcoal, mostly small poor rye ++; oat Chrysanthemum segetum 13.02.272 13.02.209 154 20 10 SFB13.02.196 up 7 18ml flot, char freq occ lge char not extracted 8ml lge char 13.02.272 13.02.218 155 10 10 fill of SFB 13.02.196 7 0 13.02.272 13.02.200 156 20 10 fill of SFB 13.02.196 7 10 13.02.272 13.02.203 157 20 10 hearth within 13.02.196 7 10ml flot, occ sm char occ lge char not extracted 13.02.272 13.02.202 161 50 10 fill of SFB 13.02.196 7 / C12C14th 40ml sm & lge char 8ml char 13.02.273 13.02.207 166 20 10 hearth 13.02.204 fill 7 15ml silt & small char 0 13.02.273 13.02.206 167 10 10 fill of hearth 13.02.204 7 SORTED REMAINS ONLY MODERN 13.02.193 146 50 10 floor layer 7 10ml flot, occ sm char poor frags cereal ++; rye, oat, Chrysanthemum segetum +; Spergula arvensis + 13.02.220 13.02.221 13.02.227 150 151 158 15 20 20 5 5 10 layer dump make up layer 7 7 7 14.09.003 14.09.006 207 10 10 pit 3 10ml silt & small char 0 0 Gorse/broom charcoal returned a date of 367-201 cal BC D 0 14.09.016 14.09.008 202 5 5 pit 3 5ml rooty small char a few medium frags sent to Dana 0 D 0 build SFB lge lge 0 ++; poor vacuolated cereal frags ++; oats +++; Chrysanthemum segetum ++ rye+; oats +++; Chrysanthemum segetum +++; rye rachis+; 2 halves of 2-3mm Vicia/Lathyrus sp. oats +++; rye +++; bread wheat +; barley; Chrysanthemum segetum +++; chess +; Raphanus raphanistrum+; cf. Vicia sativa +; 1 HNS a few poor oats ++; rye rachis + potential Vol avail B/C 0 B 10 B 10 A 40 B/C 10 10 B/C 10 10 15 10 218 flot, © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol Vol processed Context type period / spot date flot description charcoal charred plant remains potential Vol avail 14.09.016 14.09.009 203 5 5 pit 3/MBA 15ml flot, silty, rootlets, 0 14.09.010 204 5 5 pit 3 10ml silty flot, occ medium char 1 Galium aparine ; possible poor cereal frags +. C14 on hazel charcoal = 1627-1504 cal BC 0 B 14.09.016 D 0 14.09.016 14.09.011 205 5 5 pit 3/MBA 5ml med char sent to Dana 4 medium frags sent to Dana 0 0 14.09.013 14.09.015 14.09.019 14.09.020 200 201 208 209 20 40 5 5 10 10 5 5 tree throw tree throw pit pit 3/MBA 3/MBA 3/MBA 3 1 poor eroded bread-type wheat grain; 2 poor barley [1 sent for C14] MODERN B/C 14.09.017 14.09.017 14.09.018 14.09.018 10ml silty flot, moss, several small char SORTED REMAINS ONLY 0 D 14.09.021 14.09.052 287 20 10 ring ditch fill 10 10ml silty flot, occ small char 20ml silt & small char 10 30 0 0 crop processing waste including culm bases, weed seeds +++; occ grain A* C14 date 15.02.018 15.02.005 288 40 10 fill of ditch 15.02.004 10 0 5ml char lge 10 30 Table 15.3 Charred plant remains from FTC section Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. 01.04 (site 24.02) 01.05 001 30 10 ditch fill 10 50ml salmon orange silt, coating charcoal. 0 D 20 02.02.004 02.02.005 290 50 10 pit fill 2/LNEO? 50ml silt, char & HNS 40 02.02.007 292 20 10 2/Lneo 70ml silt, char & HNS abundant (25ml) HNS, 1 poss tuber frag. 30ml lge HNS B 02.02.006 B 10 02.02.006 02.02.008 291 10 10 third pit fill 2/LNEO 85ml silt, char & HNS 25ml HNS B 0 02.02.010 02.02.011 293 40 10 second pit fill 2/NEO 40ml silt & char & HNS 25ml HNS, some > C14 [3339-3095cal BC] B 30 02.02.013 02.02.014 294 20 10 primary pit fill 2 10ml silt, rootlets, freq char 20ml large charcoal, flat, encrusted 5ml lge char 10ml lge char 10ml lge char a few med frags extracted a few med char extracted 1 grain frag; HNS +++ B/C 10 second pit fill 219 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. 02.02.013 02.02.015 295 20 10 second pit fill 2 10ml silt, rootlets, sm char 1 cf. cereal frag; small HNS frags + B/C 10 02.02.016 02.02.017 298 20 10 pit fill 2 30ml silt & char 10ml HNS; 1/2 Vicia/Lathyrus sp. B/C 10 02.02.018 02.02.019 296 20 10 primary pit fill 2 10ml silt, char, shillet, HNS ++ B/C 10 02.02.018 02.02.020 297 20 10 second pit fill 2 10ml roots, silt, char 5ml HNS B/C 10 09.04 09.05 002 40 10 ditch fill 4 0 D 30 12.05.004 12.05.005 233 30 10 pit fill 10 15ml pale yellow silt & shillet 15ml char & brown silt sev med frags extracted occ med char extracted 2 lge char frags occ lge char extracted occ medium char only 5ml lge char 4 Fallopia convolvulus; 1 Persicaria sp. C 20 12.05.004 12.05.006 234 40 10 pit fill 10 25ml silt & char 30 12.05.007 235 20 10 pit fill 10 20ml silt, moss, lge char lge Galium aparine 2 from residue 1 HNS; 1 cf grain frag C 12.05.004 B 10 12.05.004 12.05.008 236 20 10 pit fill 10 25ml charcoal & silt lge 0 D 10 12.05.009 12.05.010 227 10 10 pit fill 10 0 D 0 12.05.009 12.05.015 229 25 10 pit fill 10 228 10 10 pit fill 10 B 0 12.05.013 12.05.014 225 45 10 pit fill 10 70ml pale brown silt & char 2 barley; 1 cf. emmer/spelt grain 1 barley; 1 rye;1 small frag cf. Prunus sp. stone 0 15 12.05.012 D 35 12.05.013 12.05.016 226 45 10 pit fill 10 40ml brown silt & charcoal onion couch tuber 1 C 35 12.05.017 12.05.018 230 20 10 pit fill 10 0 D 10 12.05.019 12.05.021 238 20 10 pit fill 10 0 0 D 10 12.05.019 12.05.022 231 20 10 pit fill 10 10ml silt & shillet, occ small char 15ml moss, shillet, small char 10ml silt & sm char 100ml lge char 10ml lge char 20ml lge char chunks 10ml lge char 0 B 12.05.011 40ml pale brown silt, several small & lge char not extracted 150ml freq char & brown silt 50ml freq char, brown silt 5ml char 10ml char 8ml char 0 0 D 10 12.05w.0 04 12.05w.007 239 20 5 pit/bowl furnace fill 10 15ml moss, silt, med char, slaggy & mineralised blobs 0 D 15 13.03.004 13.03.045 193 20 10 primary fill of ditch 13.03.044 4 10ml shillet & silt small char > C14 a few lge char extracted small char sent to Dana for 0 D 10 220 lge 3mm © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. dating 13.03.004 13.03.051 192 20 10 primary fill of ditch 13.03.050 primary fill of ditch 13.03.056 ditch fill 4 8ml shillet & silt trace char 0 D 10 13.03.004 13.03.057 191 20 10 4 25ml shillet & pale silt trace char 0 D 10 10.08 10.09 003 40 10 5 5 1 cf. hawthorn stone frag.; 1/2 vetch/tare 0 30 primary fill of ditch 13.03.012 D 10 20 10 ditch 5 10 20 10 ditch 5 D 10 14.01.006 033 5 5 pit fill 5 14.01.004 14.01.007 034 5 5 pit fill 5 25ml flot, frequent pale yellow silt & shillet 25ml flot, uncharred wood frags frequent, uncharred seeds 25ml silt & shillet; bready slag 5ml silt C 189 fill of 13.03.029 fill of 13.03.037 occ medium char only 10ml medium char trace char C 10 25ml pale yellow silt & shillet 10ml shillet & silt 13.03.011 13.03.013 190 20 13.03.011 13.03.030 185 13.03.011 13.03.038 14.01.004 14.01.004 14.01.008 035 10 10 pit fill 5 25ml silt 14.01.004 14.01.009 036 10 10 pit fill 5 15ml orange silt & shillet 14.01.034 14.01.035 038 20 10 hearth fill 5/RB LC2-C4 15ml small char & rootlets 14.01.036 14.01.037 039 10 10 posthole fill 5 40ml silt, shillet, small char 14.01.038 14.01.039 044 40 10 secondary fill of pit 5/RB LC2-C4 100ml blobby slag & small char 14.01.038 14.01.079 053 30 10 primary pit fill 5 14.01.038 14.01.080 054 20 10 secondary pit fill 5 100ml lge blobby slag & char 150ml blobby slag & char 14.01.081 14.01.082 057 10 10 5/RB 40ml ashy silt, blobby slag, char 14.01.105 14.01.022 042 40 10 5 5ml shillet 14.01.105 14.01.024 040 40 10 fill of natural depression 14.01.081 fill of ditch 14.01.020 fill of ditch 80ml char 50ml char 5ml char 5 20ml shillet 221 1 very small nutshell frag cf. Prunus sp. uncharred Fallopia, Polygonum aviculare; waterlogged or modern? oat+; barley rachis+; HNS+; 0 C 0 D 0 cf. oat +; 1/2 barley; HNS + C 0 0 D 0 2 concretions with melted flax seeds B 10 0 D 0 A* - 30 B 20 A* - 10 C 0 trace char flax seeds fused in capsule position, some loose, 1 emmer/spelt grain; 1 extracted Vicia faba var minor v. poor e/s grain; flax seeds++; oat+ flax+++; poor e/s grain, flax fused in capsule; oat+ occ poor cereal; e/s grain+; oat+; cf. bread-type wheat+ 0 D 30 1 lge char, 0 D 30 occ char small 8ml lge char freq small char occ lge char few small char some med/lge char 10ml lge char 8ml lge char lge lge lge © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal 14.01.023 14.01.105 14.01.032 041 40 10 14.01.106 14.01.044 060 40 10 14.01.106 14.01.065 045 10 10 14.01.106 14.01.066 046 10 10 14.01.106 14.01.067 047 10 10 14.01.106 14.01.068 048 10 10 14.01.106 14.01.069 049 10 10 14.01.106 14.01.070 050 10 10 14.01.106 14.01.071 051 10 10 14.01.106 14.07.072 052 10 10 14.01.107 14.01.046 037 40 10 14.01.107 14.01.046 059 40 10 14.01.107 14.01.077 043 10 10 14.01.107 14.01.084 056 40 10 14.01.090 058 15 16.01.007 16.01.008 279 16.01.009 16.01.010 16.01.009 16.07.004 fill of ditch 14.01.030l fill of ditch 14.01.041 fill of ditch 14.01.064 fill of ditch 14.01.064 fill of ditch 14.01.064 fill of ditch 14.01.064 fill of ditch 14.01.064 ditch fillfill of ditch 14.01.064 fill of ditch 14.01.064 fill of ditch 14.01.064 primary fill of terrace 14.01.012 primary fill of terrace 14.01.012 (see <037>) Fill of terrace 14.01.076 Charred plant remains Potential Vol. Avail. rest small 5 10ml shillet rare char 0 D 30 5 trace char 1 oat frag. C 30 5 10ml shillet & silt, occ small char 5ml shillet 0 D 0 5 30ml silt & shillet 1 poor grain C 0 5 25ml silt & shillet 3 poor frags grain C 0 5 15ml silt & shillet 0 D 0 5 10ml silt & shillet 0 D 0 5 10ml silt & shillet 0 D 0 5 5ml silt & shillet rare small char sev small char occ small char occ small char occ small char occ small char trace char 0 D 0 5 10ml silt & shillet trace char 0 D 0 5/RB LC3-C4 15ml silt & small char, blobby slag 8ml char 3 HNS from residue C 30 5 / RB LC3-4 40ml blobby slag & med char med only oat+; culm node+; polygonum aviculare +; cf. charred insect+ B/C 30 25ml silt, small char 4 lge frags 1 poor barley frag; 1 culm base C 0 C 30 0 D 5 20 10 charocal fill of pit 10 130ml freq char all sizes 0 D 10 281 10 10 10 D sorted 0 280 10 10 10 80ml char, all sizes, spherules 490ml abundant char 1 gorse seed (Ulex sp.) 16.01.011 charcoal spread in pit pit fill occ bracken frond frag. C 0 16.07.005 240 10 5 pit fill 10 10ml lge char freq small char 30ml lge char 30ml lge char 240ml lge char 0 1 e/s glume base 10 fill of terrace 14.01.083 charcoal layer 5 / C1C2 +LC3-C4 5/RB LC2-C4 10 0 D 5 blobby slag, 100ml silt & char 30ml silt & shillet 10ml orange silt & shillet, some sm char 222 lge © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. 16.07.006 16.07.007 244 10 10 ditch fill 10 0 0 D 0 16.07.008 16.07.008 16.07.010 16.07.011 243 242 10 10 5 5 bowl furnace . bowl furnace 0 small char > C14 0 0 D D 5 5 16.07.008 16.07.012 241 20 5 bowl furnace 15ml silt & sm char small char > C14 0 D 15 16.07.008 16.07.013 245 20 10 fill of furnace 4 C14 3rd4th century BC period 4 C14 3rd4th century BC period 4 4 20ml orange silt, rootlets, freq sm char 5ml freq sm char, silt 15ml silt & sm char 0 0 D 10 16.07.008 16.07.014 246 10 10 bowl 4 0 0 16.07.015 247 10 10 4 60ml freq sm char B/C 0 16.07.008 16.07.016 248 10 10 bowl 4 25ml pale silt, occ sm char D 0 16.07.017 16.07.018 250 20 10 fill of furnace pit fill 1 charred Rubus sp. > C14? 1 Fallopia convolvulus; 3 wheat cf. emmer/spelt 0 D 16.07.008 fill of furnace furnace fill 10ml orange silt & occ sm char 15ml fine silt & sm char 10 100ml freq char lge 0 D 10 16.07.019 16.07.020 251 20 10 pit fill 10 15ml silt & flaky char lge 0 D 10 16.07.021 16.07.022 259 20 10 bowl 10 D 10 16.07.023 258 20 10 bowl 10 0 0 D 10 16.07.024 16.07.025 257 20 10 bowl 10 25ml orange silt, rootlets, shillet, occ sm char 20ml pale brown silt, occ sm char 5ml silt, shillet, trace char 1 small Poaceae grass 16.07.021 0 0 D 10 16.07.024 16.07.026 256 10 10 bowl 10 20ml freq silt, occ sm char 0 0 D 0 16.07.024 16.07.027 255 10 10 bowl 10 <5ml silt, roots, trace char 0 0 D 0 16.07.037 16.07.038 261 5 5 fill of furnace fill of furnace fill of furnace fill of furnace fill of furnace pit fill 10 0 0 D 0 16.07.037 16.07.039 262 10 10 pit fill 10 C 0 16.07.041 263 10 10 bowl furnace fill 10 0 D 0 16.07.040 16.07.042 264 10 10 bowl furnace fill 10 35ml freq lge char & silt 5ml med char 20ml chunky char 10ml lge char 1 cf. wheat, poor encrusted 16.07.040 10ml silt, rootlets, trace char 40ml rootlets, silt, freq med char 40ml freq lge char, silt 0 D 0 223 occ medium char only 0 30ml char 8ml char 0 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. 16.07.077 16.07.029 254 10 10 10 0 D 0 16.07.030 253 10 10 10ml silt, shillet, occ sm char 50ml freq silt, sev sm char 0 16.07.077 0 0 D 0 16.07.077 16.07.032 252 10 10 Fill of furnace/pit 16.07.028 Fill of furnace/pit 16.07.028 Fill of furnace/pit 16.07.028 10 15ml silt & sm char, occ lge char not extracted 0 D 0 16.07.077 16.07.045 266 5 5 10 15ml pale silt & sm char 0 D 0 16.07.077 16.07.046 267 10 10 10 25ml moss, silt, freq sm char 5ml char lge 0 D 0 16.07.077 16.07.047 268 10 10 10 50ml freq lge char & silt 10ml char lge 1 oat grain C 0 16.07.049 16.07.050 269 10 10 Fill of bowl furnace 16.07. 43 Fill of bowl furnace 16.07. 43 Fill of bowl furnace 16.07. 43 bowl furnace fill occ lge char not extracted 0 10 15ml shillet, silt, char 0 D 0 16.07.049 16.07.051 270 10 10 bowl furnace fill 10 10ml silt, roots, shillet, sm char 0 D 0 16.07.052 16.07.053 271 5 5 bowl furnace fill 10 0 D 0 16.07.052 16.07.054 272 10 10 bowl furnace fill 10 0 0 D 0 16.07.055 16.07.056 273 10 10 furnace fill 10 15ml orange silt & shillet, rare sm char 10ml orange silt, trace sm char 40ml freq lge char & silt 5ml flaky char occ med char not extracted 0 0 D 0 16.07.055 16.07.057 274 30 10 furnace fill 10 30ml silt & freq sm char 0 D 20 16.07.055 16.07.058 275 10 10 furnace fill 10 25ml silt & sm char, roots, moss 1 small Poaceae grass C 0 16.08.020 16.08.021 299 30 10 pit fill 10 300ml freq silt & silt lumps, some lge char 8ml encrusted lge char 5ml lge char sm & med char only, not extracted 5ml lge char hulled barley +++; oats +++; HNS+ A - worth dating? 20 16.01.004 276 10 10 10 50ml freq char & silt lge 0 D 0 16.01.005 277 10 10 charcoal spread in pit 16.01.004 burnt natural in pit 16.01.005 10 10ml silt rootlets char 0 D 0 10 224 & sm char, 5ml char sm only © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. 16.01.006 278 10 10 10 50ml freq char & silt C 0 16.07.034 260 5 5 10 0 D 0 18.12.015 18.12.017 303 10 10 primary pit fill 10 10ml silt, sm char, sev modern seeds 75ml silt & char 8ml char 0 1 gorse seed (Ulex sp.) 16.07.033 burnt natural in pit 16.01.006 Post hole fill 0 18.12.020 301 30 10 secondary pit fill 2/L.Neo 250ml silt & char poor encrusted barley +++ & oats + HNS +++ B 18.12.018 B 20 18.12.032 18.12.033 304 10 10 pit fill 2/ E.Neo 50ml silt & sm/med char 0 D 0 18.12.043 18.12.044 307 10 10 pit fill 10 120ml silt & lge char 15ml lge char 100ml lge char med char > C14 5ml flaky char, encrusted HNS + 0 18.12.053 18.12.054 310 40 10 fill of pit 2 110ml silt & lge char HNS +++, some lge 30 18.13.004 18.13.006 305 20 10 primary fill of pit 10 15ml flot, freq sm char 24 sm/med frags HNS B/C 10 18.13.004 18.13.007 306 20 10 third fill of pit 10 18 sm/med HNS B/C 10 18.13.011 18.13.012 308 30 10 pit fill 10 160ml freq char, blobby slag, silt 100ml freq silt, some shillet occ sm HNS; cf. tuber+ C 20 19.08.004 19.08.005 311 5 5 pit fill 10 50ml freq sm char, v. encrusted 0 D 0 19.07.004 19.07.005 312 10 10 pit fill 10 265ml freq sm char 60ml lge char 5ml lge char 50ml lge char 5ml lge char 25ml freq roundwood, encrusted 40ml freq roundwood C probably more HNS, difficult to see B A* Date? 21.06.008 21.06.010 313 30 10 fill of SFB 3 200ml freq silt, sm char 30ml lge char, some >C14 24.03.004 24.03.016 006 40 10 primary pit fill 10 25ml orange silt, moss 24.03.036 24.03.037 008 10 10 primary fill of pit 5 / RB+ 10ml orange silt occ medium char only occ medium char only freq oats & rye, vacuolated but not eroded; gorse spine tips +++; bracken +; burnt string barley +; Range of weeds Galium aparine+; Plantago lanceolata +;Fallopia+;Vicia/Lathyrus +; Small pellet-like droppings. C14 date on barley grain = 13851194cal BC 1 possible small chess frag. chess ++; glume bases ++; HNS + 225 lge - 0 A - More work needed on 'dropping s'. 20 C 30 B 0 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. 24.03.036 24.03.038 007 10 10 secondary fill of pit 5 20ml orange v. silty, roots, moss occ medium char only A 0 24.03.036 24.03.039 010 10 10 fourth fill of pit 5 10ml orange silt D 0 24.03.036 24.03.040 009 10 10 fifth fill of pit 5/RB 10ml orange silt sev small char occ medium char only chess +++; spelt glume base +; emmer/spelt grain; oat ++; Tripleurospermum inodorum +; HNS +; cf. gorse (Ulex sp.) 0 B 0 24.03.036 24.03.078 013 10 10 same 24.03.037 as 5 25ml orange silt, moss occ medium char only B 0 24.03.036 24.03.079 014 10 10 as 5 10ml silt, moss 0 24.03.080 015 10 10 as 5 20ml orange silt occ medium char only small char only B 24.03.036 same 24.03.038. same 24.03.039 B 0 24.03.036 24.03.081 016 10 10 5/RB 25ml orange silt B 0 24.03.041 24.03.044 011 30 10 same as 24.03.040 primary fill of pit chess ++; spelt glume base; emmer/spelt graiin +; HNS+ chess ++; good emmer/spelt grain +++; chaff ++; spelt glume base+ oat +; barley +; spelt glume base +, HNS + oat ++; emmer/spelt grain ++; chess ++; spelt glume base +; HNS ++ chess ++;spelt gl base + 5 30ml orange silt 0 D 20 24.03.060 24.03.060 24.03.089 24.03.063 24.03.146 24.03.090 012 030 017 5 40 10 5 10 10 third fill of pit secondary pit fill pit fill 3 / ?EBA 3 10 5ml silt, moss 10ml orange silt 8ml silt 0 0 0 D D D 0 30 0 24.03.149 24.03.108 018 10 10 5 5ml orange silt tuber + C 0 24.03.149 24.03.110 019 10 10 5 20ml orange silt tuber + C 0 24.03.149 24.03.112 020 10 10 5 20ml orange silt 1 cf. pignut tuber C 0 24.03.150 24.03.122 031 5 5 5 15ml orange silt 0 D 0 24.03.150 24.03.126 032 10 10 5 10ml orange silt 0 D 0 24.03.153 24.03.020 027 20 10 5/RB 10ml orange silt 24.03.153 24.03.021 028 20 10 5 24.03.153 24.03.022 029 20 10 fill of gully 24.03.107 fill of gully 24.03.109 fill of gully 24.03.111 fill of posthole 24.03.121 fill of posthole 24.03.125 third fill of ditch 24.03.019 second fill of ditch 24.03.019 primary fill of ditch 24.03.019 5 small char only 5ml lge flaky char trace char trace char small char only small char only rare char 0 D 10 10ml silt 1 lge char, rest small a few med char sev small char small char only trace char 0 D 10 10ml orange silt trace char 0 D 10 226 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Generic/ fill of Context Sample Tot vol. Vol. processed type period / spot date Flot description Charcoal Charred plant remains Potential Vol. Avail. 24.03.153 24.03.075 024 20 10 C 10 025 20 10 10 24.03.077 026 20 10 5 5ml orange silt 1 poor eroded cf. breadtype wheat 0 C 24.03.153 D 10 24.03.153 24.03.086 023 20 10 5 trace chess frag C 10 24.03.153 24.03.087 022 20 10 5 25ml silt, moss, modern seeds 15ml orange silt 1 poor cf. barley grain C 10 24.03.153 24.03.088 021 20 10 5 50ml silt, moss 1 small Poaceae grass C 10 33.01.006 33.01.007 316 60 10 10 165ml silt, sm char 50 33.01.008 317 5 5 pit fill 10 105ml large char & silt freq HNS +++; 1 Galium aparine freq HNS+++ B 33.01.006 B 0 33.02.006 318 5 5 fired clay deposit 4 / pre 0 D 0 33.02.007 319 10 10 fired clay deposit 4 10ml silty flot, occ med char not extracted 30ml silt, rare sm char 1 lge char, rest small rare small char small char only rare small char small char only rare small char 25ml lge char 25ml lge char 0 HNS+; 1 cf. chess 24.03.076 5 / m C3C4th 5 50ml orange silt 24.03.153 primary fill of ditch 24.03.74 secondary fill of ditch 24.03.74 third fill of ditch 24.03.74 primary fill of ditch 24.03.082 secondary fill of ditch24.03.082 third fill of ditch 24.03.082 pit fill 1 frag Raphanus raphanistrum capsule C 0 25ml orange silt 0 Key A and A* = very high potential on archaeobotanical grounds alone. Material may be very well preserved, frequent, unusual, or present in an important archaeological context or period. B = good potential. Identifiable remains are present in reasonable quantities. Value is usually increased if several ‘B’ samples are examined from a structure or period. B/C = good remains but not very frequent. The sample can be upgraded to B if more soil is available for processing. Value is also increased if several samples can be examined together as a group. C = remains may be scarce or poorly preserved but some information can be recovered, particularly if more soil is available for processing. D = no further potential. No remains, or unidentifiable remains, or remains already fully sorted and identified. The author recommends that A*, A, B and B/C samples are fully analysed in the post-excavation program, and that, where possible, the remaining soil is processed. Samples graded ‘C’ can be selected for analysis if the context is particularly important, or specific questions need answering, if more soil is available for processing. 227 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Table 15.4: summary of samples recommended for further analysis Period Site Sample Context 2 FTC 06 290 02.02.005 2 FTC 06 291 02.02.008 2 FTC 06 292 02.02.007 2 FTC 06 293 02.02.011 2 OTA 06 174 02.03.005 2 OTA 06 73 03.04.092 2 FTC 06 301 18.12.020 2 FTC 06 294 02.02.014 2 FTC 06 295 02.02.015 2 FTC 06 296 02.02.019 2 FTC 06 297 02.02.020 3 FTC 06 313 21.06.010 3 ATK 06 203 14.09.009 3 ATK 06 205 14.09.011 4 FTC 06 247 16.07.015 5 OTA 06 72 03.04.088 5 FTC 06 7 24.03.038 5 FTC 06 8 24.03.037 5 FTC 06 9 24.03.040 5 FTC 06 13 24.03.078 5 FTC 06 14 24.03.079 5 FTC 06 15 24.03.080 5 FTC 06 16 24.03.081 5 FTC 06 38 14.01.035 5 FTC 06 44 14.01.039 5 FTC 06 53 14.01.079 5 FTC 06 54 14.01.080 7 OTA 06 173 01.03.005 7 ATK 06 103 13.02.134 7 ATK 06 146 13.02.193 7 ATK 06 152 13.02.212 7 ATK 06 153 13.02.213 7 ATK 06 154 13.02.209 7 ATK 06 157 13.02.203 7 ATK 06 161 13.02.202 7 ATK 06 163 13.02.232 7 ATK 06 164 13.02.233 7 ATK 06 166 13.02.207 8 ATK 06 093 13.02.097 10 ATK 06 287 14.09.052 10 FTC 06 298 02.02.017 10 FTC 06 228 12.05.012 10 FTC 06 229 12.05.015 10 FTC 06 235 12.05.007 10 FTC 06 299 16.08.021 10 FTC 06 303 18.12.017 10 FTC 06 305 18.13.006 10 FTC 06 306 18.13.007 10 FTC 06 310 18.12.054 10 FTC 06 312 19.07.005 10 FTC 06 316 33.01.007 10 FTC 06 317 33.01.008 TOTAL NUMBER OF SAMPLES = 52 Feature Pit 02.02.004 Pit .02.02006 Pit 02.02.006 Pit 02.02.010 Pit 02.03.004 Pit 03.04.090 Pit 18.12..018 Pit 02.02.013 Pit 02.02.013 Pit 02.02.018 Pit 02.02.018 SFB 21.06.008 fill Cremation pit 14.09.016 Cremation pit 14.09.016 Furnace 16.07.008 Ditch 03.04.086 Pit 24.03.036 Pit 24.03.036 Pit 24.03.036 Same as sample.8 Same as sample.7 Same as sample. 10 Same as sample.9 Hearth .14.01.034 Pit 14.01.038 Pit 14.01.038 Pit 14.01.038 Pit 01.03.004 Hearth 13.02.132 Floor layer SFB 13.02.196 fill SFB 13.02.196 fill SFB 13.02.196 build up SFB 13.02.196 floor SFB 13.02.196 fill Pit 13.02.228 Pit 13.02.228 Hearth 13.02.204 Pit 13.02.174 Ring Ditch 14.09.021 Pit 02.02.016 Pit 12.05.011 Pit 12.05.009 Pit 12.05.004 Pit 16.08.020 Pit 18.12.015 Pit 18.13..004 Pit 18.13..004 Ditch 18.12.053 Ditch 19.07.004 pit 33.01.007 pit 33.01.007 228 Process more soil Y or N check residue = R, *= c14 date suggested Y/R N/ R Y/R Y/R Y* Y / R* Y/R Y / R* Y / R* Y* Y* Y N N N Y/R N N N N N N N Y Y Y Y Y Y Y/R Y N Y Y Y N N Y Y Y care! * Y* N Y Y Y* N* Y Y Y N Y/R N/R SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 16: MOLLUSCA BY VICTORIA TAYLOR Methodology Shell was hand-collected from five deposits, one from FTC06 Site 18.12 and four from ATK06 sites 13.02 and 12.01. Mollusca were also recovered from the processed samples. The material picked out of the residues was examined under low power microscope to X40 magnification. Results Hand–collected Shell (Table 1) Hand–collected material totaled 12 fragments weighing 19g. Species identifiable include common oyster (Ostrea edulis), mussel (Mytilus edulis) and periwinkle (Littorina Littorea). Shell Recovered from processed samples (Table 2) Shell fragments were recovered from the residues of six of the processed bulk samples from ATK06 sites 13.02 and 14.09 (Table 2). The large majority of shells recovered were identifiable as cockle (Cerastoderma edule). In addition to this a small amount of oyster shell and one land snail, unidentifiable to species, were also recovered. Discussion All the shell recovered appears to represent food waste excepting the land snail from deposit 13.02.188. Oyster, cockle, periwinkle and mussel are all commonly occurring edible shoreline species. A large amount of cockles were recovered from the ATK06 Site 13.02 suggesting that this species was either more readily available at the time or was preferentially selected over other species. It is likely the land snail from hearth 13.02.132 was brought to the site from elsewhere unintentionally, possibly with fuel for the hearth collected from the surrounding area. Recommendations Most deposits yielded only small quantities of marine mollusc both hand-collected and from processed samples. This material has limited potential for further analysis and therefore no further work is recommended. The large quantity of cockle shell recovered from the midden fill 13.02.006 has greater potential. The contribution of this species to diet at the site during the period in which the cob material from the long house was being reused (post–medieval period) should be investigated further. The single unidentified land snail from hearth 13.02.204 has no palaeoenvironmental potential and therefore full identification is not recommended as it would not contribute to the interpretation of the feature. 229 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 16.1 Hand-collected Shell by RDX Pipeline Section FTC06 Site Context no 18.12 18.12.033 ATK06 13.02 13.02.033 ATK06 315 315.005 ATK06 315 315.009 ATK06 327 327.002 Table 16.2 Spot Date EPRE C16C18 PMED Prov Period Description 2 Fill of pit 18.12.032 Secondary fill of ditch 8 13.02.031 Collapsed cob wall 315.005 10 part of 12.01.001 Natural disuse spread 8 within structure 12.01.001 Levelling/bedding layer for 8 327.001 Count 1 Weight Comments (g) 1 Oyster 1 2 Oyster 2 3 Oyster 1 3 Periwinkle 7 10 Mussel Mollusca from the residues of processed samples Pipeline Section Site Sample no Context no ATK06 13.02 105 13.02.006 ATK06 13.02 106 13.02.160 ATK06 13.02 132 13.02.188 7 ATK06 13.02 166 13.02.207 ATK06 13.02 167 13.02.206 Spot Date Prov Period 8 C18 8 Description Shell midden 13.02.006 fill of 13.02.159 Fill of ditch 13.02.159 A Comments Mainly cockle, some oyster C Cockle E Unidentified land snail 7 Part of Hearth 13.02.132 Part of Hearth 13.02.204 D Cockle 7 Part of Hearth 13.02.204 C Cockle E Cockle Secondary fill of ATK06 14.09 287 14.09.023 10 ditch 14.09.021 Key to quantity codes E = 1-10, D =10-50, C = 50-100, B = 100-200, A = 200+ Table 16.3 Quantity Codes Mollusca from the flots of processed samples Pipeline Section Site Sample no Context no Prov Period ATK06 13.02 105 13.02.006 8 ATK06 13.02 106 13.02.160 8 Description Shell midden 13.02.006 fill of 13.02.159 Fill of ditch 13.02.159 230 Quantity Codes Comments E cockle E cockle SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 17: GEOARCHAEOLOGICAL AND PALYNOLOGICAL ASSESSMENT OF MONOLITH SAMPLES BY KEITH WILKINSON, C. ROBERT BATCHELOR AND DAN YOUNG Introduction Five monolith samples were taken from fills of negative feature 4.12.004 during excavations carried out by Cotswold Archaeology in advance of the construction of a pipeline at Ottery St Mary, Devon in May 2007. The 2m deep feature was interpreted as a palaeochannel rather than a humanly constructed ditch because of the absence of artefacts from its fills. This report outlines the stratigraphy recovered in the monoliths, assesses the palaeoenvironmental significance of the strata and reports upon the palynology of the sequence. The objectives of the sedimentological description were to characterise the deposits, determine their mode of genesis and assess the implications of the presence of the inferred depositional environments for past human populations. The overarching aim of the palynological assessment was to evaluate the potential of the pollen samples for reconstructing the environmental history of the site and its environs. In order to achieve this palynological aim, the investigation examined the preservation and concentration of pollen grains and spores (columns) to provide a preliminary reconstruction of the vegetation history, and to detect evidence for human activities e.g. woodland clearance and cultivation. The monoliths were collected by officers of Cotswold Archaeology from a single section. Four of the monoliths (<216>, <217>, <218> and <220>) overlapped so as to sample the whole sequence, while one further sample (<219>) duplicated stratigraphy sampled by <218> and <220> towards the edge of the feature. All monoliths measured 500x100x100mm and typically overlapped their overlying and underlying neighbours by 50-100mm. The monolith samples were transferred from Cotswold Archaeology to ARCA in May 2009 and descriptions were made in that organisation’s laboratories in June 2009. Palynological sub-samples were taken to Quest’s Reading laboratories in May 2009 and assessed in May and June 2009. Methodology The monolith samples were first cleaned by removing c. 1mm of weathered material from the sediment. The stratigraphy was photographed and then described (Table 1). Descriptions were made according to standard geological criteria and onto proforma ‘log sheets’ (Tucker 1982, Jones et al. 1999, Munsell Color 2000). Twentyfive sub-samples were taken from the monoliths at 40-150mm for palynological assessment. Pollen was extracted from the sub-samples at the University of Reading as follows: (1) sampling a standard volume of sediment (1ml); (2) deflocculation of the sample in 1% Sodium pyrophosphate; (3) sieving of the sample to remove coarse mineral and organic fractions (>125μm); (4) acetolysis; (5) removal of finer minerogenic 3 fraction using Sodium polytungstate (specific gravity of 2.0g/cm ); (6) mounting of the sample in glycerol jelly. Each stage of the procedure was preceded and followed by thorough sample cleaning in filtered distilled water. Quality control is maintained by periodic checking of residues, and assembling sample batches from various depths to test for systematic laboratory effects. Pollen grains and spores were identified using the Royal Holloway (University of London) pollen type collection and the following sources of keys and photographs: Moore et al (1991); Reille (1992). Plant nomenclature follows the Flora Europaea as summarised in Stace (1997). The 231 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology assessment procedure consisted of scanning the prepared slides, and recording the concentration and preservation of pollen grains and spores, and the principle taxa on four transects (10% of the slide) (Table 2). Results Stratigraphy The sequence sampled in the monolith tins rest on weathered mudstone of the Mercia Mudstone Group, and present in the basal 20mm of monolith <220>. The lowest fills of the negative feature (contexts (4.12.005, 4.12.006, 4.12.010) comprise c 0.30m of thinly bedded and laminated peats, organic muds and mineral silt/clays (Table 1). There is a trend in these strata for organic content to decrease upwards and for the mineral deposits to become increasingly dominant. Peat containing recognisable plant macro-remains is only a feature of the basal 0.10m of the sampled feature (context (4.12.005)). These basal thinly bedded and laminated strata collectively formed in a damp environment that has continued to be at least partially waterlogged from the time of first deposition to the present day. Organic units represent periods of relative stability when plant growth was possible associated with shallow water depths, whereas the mineral units indicate periods of sudden flooding when water depths were greater. It is notable that the mineral silts/clays are entirely derived from the Mercia Mudstone bedrock. The thinly bedded and laminated structure of these basal deposits suggests a regime of oscillating depositional environment, perhaps switching from relatively long-lived periods of stability in which the organic strata developed, followed by shorter episodes of intense flooding. Above 56.91m AOD, strata within the negative feature change significantly and are from this point onwards characterised only by mineral sediments (contexts (4.12.18, 4.12.011, 4.12.012, 4.12.014, 4.12.015, 4.12.017, 4.12.018)). There is an upwards trend for the sediments to become increasingly coarse and change from silt clays to fine sands. As previously noted for the underlying units, the source of all particles is the Mercia Mudstone bedrock. It is likely that the silts/clays towards the base of this sequence, i.e. from 56.91m to 58.02m AOD, accreted as a result of a series of flood events as suggested for the underlying mineral deposits. However, the absence of organic deposits suggest that shallow water was not constantly present within the feature either because it was permanently inundated or because there was insufficient time between flood events for significant plant growth. Iron stains noted within the fine-grained strata are indicative of fluctuating water tables following deposition and their presence may argue for the second hypothesis. The sands at the top of the sequence (context (4.12.020)) are mixed with grains of other size classes, are moderately or poorly sorted and probably therefore accumulated as a result colluvial processes. Thus there may be a temporal discontinuity at 58.02m AOD between the sands and the underlying alluvial silt/clays. Palynology The concentration and preservation of pollen varied throughout the contexts contained within negative feature [4.12.004]. In the three sub-samples from the basal peat (context 4.12.05) (monolith <220>), the pollen concentration was high and preservation moderate. The main taxa identified included Alnus (alder), Corylus type (e.g. hazel), Poaceae and mixed herbs such as Caryophyllaceae (daisy family). 232 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology In the six samples from overlying organic and mineral silt/clays (context 4.12.06) (monoliths <220> and <219>), pollen concentration was generally moderate to high (with the exception of sub-sample located at 56.76 to 56.75m OD), and preservation moderate. The main taxa identified included Alnus (alder), Corylus type (e.g. hazel), Poaceae (grass family), Plantago lanceolata (ribwort plantain) and Polypodium vulgare (polypody). Quercus (oak) and Fraxinus (ash) were also recorded in the sub-sample 56.80 to 56.79m OD, and mixed herbs such as Lactuceae (daisy family), Cyperaceae (sedge) and possibly Ranunculus type (e.g. creeping buttercup) were recorded in various samples. In the single sample from mineral silt/clay unit at the edge of the negative feature (4.12.10) (monolith <219>) the concentration of pollen is high, and the preservation low to moderate. The main taxa identified included Alnus (alder), Corylus type (e.g. hazel), Poaceae (grass family), Dryopteris type (buckler fern) and Polypodium vulgare (polypody). In the two samples from further organic and mineral silt/clays from the base of the feature (4.12.11) (monoliths <220> and <219>) the concentration of pollen is high, and preservation moderate to high. The main taxa identified included Alnus (alder), Fraxinus (ash), Corylus type (e.g. hazel), Poaceae (grass family), Apiaceae (carrot family), Plantago lanceolata (ribwort plantain), Cyperaceae (sedge family) and Sphagnum (moss). In the three samples from the first overlying mineral silt/clay unit (4.12.14) (monoliths <219> and <218>) pollen concentration and preservation was generally poor. The main taxa identified included Alnus (alder), Corylus type (e.g. hazel), Poaceae (grass family), and Polypodium vulgare (polypody). In the two samples from a further overlying mineral silt/clay (4.12.15) (monolith <218>) pollen concentration and preservation was generally poor. The main taxa identified included Caryophyllaceae (campion family) and Sphagnum (moss). In the one sample from context (4.12.16) (monolith <218>) pollen concentration and preservation was moderate to poor. The main taxa identified included Alnus (alder), Corylus type (e.g. hazel), Lactuceae (daisy family) and Poaceae (grass family). In the one sample from the humic silt context (4.12.17) (monolith <217>) pollen preservation and concentration was moderate to high. The main taxa identified included Alnus (alder), Poaceae (grass family), Plantago lanceolata (ribwort plantain) and Dryopteris type (buckler fern). In the four samples from context (4.12.18) (monolith <217>) pollen concentration and preservation was moderate to poor. The main taxa identified included Alnus (alder), Corylus type (e.g. hazel), Lactuceae (daisy family) and Poaceae (grass family). In the two samples from the fine sand contexts (4.12.19) (monolith <217>) no pollen was preserved. The results of the pollen assessment suggest that the assemblage throughout the entire sequence was relatively similar despite the variations in concentration and preservation. The results suggest a relatively open environment around the site most likely supporting mixed grassland. In addition, there is evidence for wetland woodland (e.g. alder) possibly growing alongside a nearby river or stream. The regular occurrence of hazel and occasional presence of oak and ash may indicate the growth of mixed deciduous woodland, coppiced woodland 233 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology and/or hedgerows. The lack of Tilia or Ulmus pollen taxa is suggestive of a late prehistoric sequence (i.e. post elm and lime decline). However, no definitive evidence of human activity was recorded during the pollen assessment Assessment The geoarchaeological and palynological assessments carried out on samples taken from cut [4.12.004] cast little further light on the genesis of the feature - it is still unclear whether the feature was a ditch or a palaeochannel. However, given the nature of the deposits filling the cut, the balance of probability is with the latter. All deposits infilling the feature – with the possible exception of the uppermost sands – are the result of natural, mostly alluvial, processes and there is very little indication from either the palynology or sediment morphology for human action (excepting occasional charcoal fragments at the interfaces of the sands and mineral silt/clays, and the mineral silt/clays and organic strata). The sands at the top of the sequence may have indirectly resulted from human action. They appear to have formed as a result of colluvial processes which may have been the result of cultivation on the surrounding slopes. The organic strata at the base of the sequence (56.57-56.91m AOD, contexts (4.12.005, 4.12.006, 4.12.010)) are suggestive of the fluctuation of depositional environments, alternating from stable shallow water facies to sediments indicative of flooding. Pollen preservation in these strata is good and the pollen assemblage reasonably diverse. Depending on the results of 14 C dating and therefore the age of the deposits, the organic sediments are assessed as having either a high or a moderate geoarchaeological and palaeoenvironmental potential. The overlying mineral silts/clays (contexts (4.12.18, 4.12.011, 4.12.012, 4.12.014, 4.12.015, 4.12.017, 4.12.018)) most probably formed as a result of a series of flood events resulting in reasonably deep water resting in negative feature [4.12.004]. It is unclear on the basis of the present morphological data whether this water was permanent or present on a periodic basis – although the latter seems more likely. Pollen preservation, except in one humic rich layer (context (4.12.018)) in monolith <217> was generally poor. The lack of organic material in these sediments means that they cannot easily be 14 C dated and therefore the chronology of these deposits is, and will remain uncertain. For all these reasons the mineral silt/clays are classified as having a low geoarchaeological and palaeoenvironmental potential. The uppermost moderately sorted sands (context (4.12.020)) are likely to have formed as a result of colluvial processes, and possibly much later than the underlying stratigraphy. There is no pollen preservation in these deposits and no prospect of direct dating by 14 C measurement. The sands are therefore also categorised as having low geoarchaeological and palaeoenvironmental potential. Recommendations The results of the pollen assessment indicate that there are a number of samples that have the potential for reconstructing the environmental history of the site and its environs. Therefore, and depending on the results of 14 C dating of the basal organic deposits and age similarity with surrounding archaeological sites, palynological analysis is recommended of these strata. Samples containing more than an estimated 150 grains per slide should be considered for analysis. While a limited range of main taxa was recorded during the assessment, analysis would allow quantification of the assemblage, and identification of the rarer types. In addition, analysis 234 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology will reveal any changes in pollen assemblage, and therefore vegetation history, during the duration of the infill of the pit. No further sedimentological work is recommended. Table17.1 Monolith stratigraphy of the fills of [4.12.004] OTA 06 <216> Context Description (4.12.019) Elevation (AOD) 58.45–58.05 (4.12.018) 58.05-57.95 7.5 YR 3/1 very dark grey silt/clay with fine sand and rare granular quartzite clasts in top 30mm. Becoming increasingly humic with depth. Rare subangular granule-sized charcoal fragments. Context Description (4.12.018) Elevation (AOD) 58.01-57.66 (4.12.017) 57.66-57.59 7.5 YR 5/2 brown silt/clay with fine sand trace and rare angular granule- and pebble-sized quartzite clasts. Grading into: 7.5 YR 4/3 brown fine sand with silt trace and occasional angular granule- to pebble-sized quartzite clasts. Homogeneous, but with occasional iron staining. Grading into: OTA 06 <217> 7.5 YR 4/2 brown silt/clay with fine sand trace with discrete patches of 10 YR 3/1 very dark grey silt with clay and fine sand trace. The darker deposit humic becomes dominant in the lower half of unit and is progressively more humic. Rare subangular quartzite granulars throughout granules. Grading into: 235 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology (4.12.016) (4.12.015) 57.59-57.51 10 YR 5/2 greyish brown clay with occasional subrounded fine pebble-sized manganese and rare 10 YR 4/2 dark greyish brown clay in small pebblesized subangular pockets. Context Description (4.12.017) Elevation (AOD) 57.61-57.56 (4.12.016) 57.56-57.51 (4.12.015) 57.51-57.36 7.5 YR 5/3 brown clay, reddening to 5 YR 5/3 reddish brown. Rare course pebble-sized subangular mudstone clasts at 0.23m. Diffuse boundary to: (4.12.014) 57.36-57.11 7.5 YR 5/1 grey and 7.5 YR 5/2 brown clay in alternating bands (between ca 50 and 100 Mm wide), lightening towards base to 7.5 YR 6/1 grey. Rare pebble-sized angular mudstone clasts 0.40m. Context Elevation (AOD) 57.24-57.12 Description Table 17.1 continued OTA 06 <218> 10 YR 4/2 dark greyish brown silt/clay with fine sand trace. Rare medium to coarse sand and angular quartzite granules. Rare iron staining. Grading into: 10 YR 5/2 greyish brown clay with silt trace and occasional iron staining. Grading into: OTA 06 <219> (4.12.014) (4.12.013) (4.12.012) 57.12-57.10 (4.12.011) 57.10-57.04 (4.12.010) 57.04-57.01 (4.12.006) 57.01-56.77 7.5 YR 6/2 pinkish grey clay, darkening to 7.5 YR 6/3 light brown towards base of unit. Rare subangular fine pebble-sized mudstone clasts and rare subangular fine pebble-sized charcoal inclusions. Diffuse boundary to: 7.5 YR 2.5/1 black humic clay, wavy and mostly at ca 30 degree angle. Diffuse boundary to: 7.5 YR 6/2 pinkish grey clay with occasional 7.5 YR 2.5/1 black discontinuous, wavy, non-parallel and granule-sized humic clay specks. Diffuse boundary to: 7.5 YR 2.5/1 black humic clay band, wavy and mostly at ca 30 degree angle. Diffuse boundary to: 7.5 YR 4/1 dark grey clay with frequent indistinct 10 YR 3/1 very dark grey and 7.5 YR 2.5/1 black fine, wavy, non-parallel, discontinuous clay laminae throughout. Rare plant macrofossils at 0.30 and rare 7.5 YR 7/1 light grey clay laminae between 0.35 and 0.40 (fine, discontinuous, non-parallel, wavy). Sharp boundary to: 236 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology (4.12.005) 56.77-56.74 10 YR 2/1 black peat with moderate pebble and granular-sized wood macrofossils. Context Description (4.12.014) Elevation (AOD) 57.19-57.06 (4.12.012) 57.06-57.02 (4.12.011) 57.02-57.00 (4.12.010) 57.00-56.995 (4.12.006) (4.12.006) 56.995-56.98 56.98-56.87 (4.12.006) 56.87-56.85 (4.12.005) (4.12.005) 56.85-56.84 56.84-56.82 (4.12.005) 56.82-56.79 (4.12.005) 56.79-56.71 N/A 56.71-56.69 Table 17.1 continued OTA 06 <220> 10 YR 5/2 greyish brown clay with rare small pebble-sized plant macrofossils and occasional light grey/light brown and dark grey wavy clay laminae (fine and coarse, discontinuous, nonparallel). Rare granule-sized inclusions of underlying deposit. Diffuse (occasionally sharp) boundary to: 10 YR 3/1 very dark grey humic clay with silt, wavy. Diffuse boundary to: 10 YR 5/2 greyish brown clay (as at top of sample). Diffuse boundary to: 10 YR 3/1 very dark grey humic clay with silt, wavy. Diffuse boundary to: 10 YR 5/2 greyish brown clay. Sharp boundary to: 10 YR 4/2 dark greyish brown clay with wedgeshaped pocket of 10 YR 3/1 very dark grey clay at the top of the unit, demarcated along the base by a fine lamina of 10 YR 5/2 greyish brown clay (also occurring in occasional wavy laminae, fine, nonparallel and discontinuous); 10 YR 3/1 very dark humic grey clay also occurs in rare pebble-sized angular pockets and as laminae throughout unit (fine, wavy, discontinuous and continuous, parallel). Sharp boundary to: 10 YR 5/4 yellowish brown fine/medium sand with silt trace. Sharp boundary to: 10 YR 2/1 black peat. Sharp boundary to: 10 YR 4/2 dark greyish brown clay with indistinct 10 YR 3/1 dark grey humic laminae (as above). Sharp boundary to: 10 YR 4/2 dark greyish brown clay and 10 YR 2/1 black peat as alternating coarse and discontinuous, parallel laminae. Grading into: 10 YR 2/1 black peat with frequent pebble-size wood macrofossils. Sharp boundary to: 10 YR 4/2 dark greyish brown fine sand/clay. 237 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 17.2 Palynological assessment data for the fills of 04.12.004 Depth (mOD) Monolith sample Context Concentration Preservation Microscopic charcoal Main taxa Latin name Common name 58.36 58.35 <216> (4.12.019) 0 - Low - - 58.18 58.17 <216> (4.12.019) 0 - None - - 58.00 57.99 <216> (4.12.018) 1 2 Low 57.95 57.94 <217> (4.12.018) 2 3 Low 57.83 57.82 <217> (4.12.018) 1 (1 grain) 2 Low Alnus Corylus type Poaceae Alnus Corylus type Filipendula Lactuceae Lactuceae alder e.g. hazel grass family alder e.g. hazel meadowsweet daisy family daisy family 57.71 57.70 <217> (4.12.018) 2 1-2 Low 57.59 57.58 <217> (4.12.017) 3-4 4 Low 57.55 57.54 <218> (4.12.016) 1 3 Low 57.43 57.42 <218> (4.12.015) 1-2 3 Low alder e.g. hazel grass family alder grass family ribwort plantain buckler fern hazel sphagnum moss polypody campion family polypody sphagnum moss - 57.31 57.30 <218> (4.12.015) 0 - Low Alnus Corylus type Poaceae Alnus Poaceae Plantago lanceolata Dryopteris type Corylus type Sphagnum Polypodium vulgare Caryophyllaceae Unknown herb type Polypodium vulgare Sphagnum - 57.19 57.18 <218> (4.12.014) 1 (1 grain) 3 Low Unknown herb type - 57.17 57.16 <219> (4.12.014) 2-3 3 Low 57.05 57.04 <219> (4.12.011) 4 2-3 Moderate Alnus Corylus type Poaceae Polypodium vulgare Alnus Corylus type Poaceae Plantago lanceolata Cyperaceae Sphagnum alder e.g. hazel grass family polypody alder e.g. hazel grass family ribwort plantain sedge family sphagnum moss 238 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 17.2 continued Depth (mOD) Monolith sample Context Concentration Preservation Microscopic charcoal 57.00 56.99 <219> (4.12.010) 4-5 2 Moderate 56.90 56.89 <219> (4.12.006) 2-3 3 Low 56.80 56.79 <219> (4.12.006) 5 3 Low 56.76 56.75 <219> (4.12.006) 1 3-4 Low 57.13 57.12 <220> (4.12.014) 1 2 Low 57.05 57.04 <220> (4.12.011) 5 3-4 Moderate 56.97 57.96 <220> (4.12.006) 3-4 3 Low 239 Main taxa Latin name Common name Alnus Corylus type Poaceae Dryopteris type Polypodium vulgare Alnus Corylus type Poaceae Lactuceae Rumex undiff. Alnus Quercus cf Fraxinus Corylus type Poaceae Cyperaceae Polypodium vulgare Poaceae alder e.g. hazel grass family buckler fern polypody alder e.g. hazel grass family daisy family dock/sorrel alder oak ash e.g. hazel grass family sedge family polypody grass family Alnus Corylus type Poaceae cf Plantago lanceolata Alnus Fraxinus Corylus type Poaceae Apiaceae Plantago lanceolata Alnus Corylus type Poaceae Polypodium vulgare Sphagnum alder e.g. hazel grass family ribwort plantain alder ash e.g. hazel grass family carrot family ribwort plantain alder e.g. hazel grass family polypody sphagnum moss © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 17.2 continued Depth (mOD) Monolith sample Context Concentration Preservation Microscopic charcoal 56.89 56.88 <220> (4.12.006) 4 2-3 Low 56.82 56.81 <220> (4.12.006) 2-3 2-3 Moderate 56.78 56.77 <220> (4.12.005) 4-5 3 Low 56.74 56.73 <220> (4.12.005) 3-4 4 None 56.71 56.70 <220> (4.12.005) 3-4 3-4 Low Main taxa Latin name Common name Alnus Quercus Corylus type Poaceae Plantago lanceolata cf Cyperaceae cf Ranunculus type Alnus Corylus type Poaceae Plantago lanceolata Dryopteris type Alnus Poaceae Caryophyllaceae Plantago lanceolata Rumex undiff. Alnus Corylus type Poaceae Alnus Poaceae Obscured grains alder oak e.g. hazel grass family ribwort plantain sedge family e.g. creeping buttercup alder e.g. hazel grass family ribwort plantain buckler fern alder grass family daisy famly ribwort plantain dock/sorrel alder e.g. hazel grass family alder grass family - Key: 0 = 0 estimated grains per slide; 1 = 1 to 75; 2 = 76 to 150; 3 = 151 to 225; 4 = 226-300; 5 = 300+. Estimated number based on assessment of 10% of total number of slide transects (4 of 40 transects) 240 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology APPENDIX 18: RADIOCARBON DATING BY SYLVIA WARMAN Introduction The preservation and quantity of suitable dateable material (charcoal and charred plant remains) was variable. A small selection of key deposits were identified for an initial tranche of dating in order to aid the post-excavation assessment process. Charcoal and charred plant material were identified and assessed for suitability. This provided five samples for AMS dating. In order to maximise the number of features/ deposits dated single samples were submitted at this stage although additional material is available which will permit the ‘pairing up’ of these dates in the future. From the Fishacre to Choakford section samples were dated from three deposits, pit 2.02.010, a possible furnace 16.07.016 and sunken floored building 21.06.008. On the Alyesbeare to Kenn Section, two pits from site 14.09 were sampled (14.09.003 and 14.09.016). Contextual details and the materials submitted are given in table 18.1. Methodology The samples were processed during 2009 at the Rafter Radiocarbon Dating Laboratory, Lower Hutt, New Zealand. Details of the methods and equipment used can be found at (http://www.gns.cri.nz/nic/ rafterradiocarbon). Results and Calibration All the samples were successful and radiocarbon ages obtained. The results are conventional radiocarbon ages (Stuiver and Polach 1977) see Table 18.1. All have been calculated using the calibration curve of Reimer et al. (2004) and the computer program WINSCAL (awaiting further details on this from Rafter). Date ranges cited in the text are those at 95% confidence level unless otherwise specified. Ranges are derived from the probability method (Stuiver and Reimer 1993). Calibration plots are illustrated in figures 18.1–18.5. Discussion Pit 2.02.1010 from Site FTC 2.02 returned a radiocarbon date of 3339-3095 cal BC, which is earlier than the date indicated by the pottery from this feature, identified as Grooved Ware (Quinnell, Appendix 2). At least one more date for this deposit should be obtained in view of this discrepancy. The possible furnace 16.07.008 from Site FTC 16.07 has a radiocarbon date range of 391–210 cal BC (Middle Iron Age) which is consistent with the interpretation of the use feature as a bowl furnace. The sample from the potential sunken floored building from Site FTC 21.06 returned a date of 1385-1194 cal BC which is middle Bronze Age. A second date from the same deposit is recommended to confirm this as the charred plant assemblage is not typical of this period (Appendix 15).. Dates were obtained from two pits from Site ATK 14.09. Pit 14.09.003 has a date of 1627–1504 cal BC thus confirming the date suggested by the presence of partial Trevisker vessel of Early to Middle Bronze Age date. This feature was believed to be a cremation at the time of excavation; upon processing the sample did not yield any bone and it seems more likely that the feature is a pit. Pit 14.09.016 was spot-dated to the Late Bronze Age/Early Iron Age. The radiocarbon date obtained was 367- 201 cal BC. The dating of a second sample from the same deposit is recommended for clarification of this discrepancy. 241 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology Objectives of further radiocarbon dating The project as a whole can be characterised as ‘artefact poor’ in comparison with others undertaken in southern England, and radiocarbon dating has an important role in filling this void, providing a chronological framework for the archaeology to be investigated. This is particularly the case with prehistoric remains, and in Devon it is acknowledged that settlements of the later Bronze and Iron Ages have been difficult to identify at all (Fitzpatrick 2008, 125-130). Scientific dating is needed in many cases simply to establish to what period the numerous undated pits and ditches belong. The principle of not relying on single radiocarbon dates should also be emphasised. Three of the five radiocarbon dates already undertaken have yielded unexpected or ambiguous results, and further dating from these, together with a range of other features, is needed to provide a solid basis for the analysis of these sites and their material remains. The range of sites includes isolated and undated features (some with charred remains suggestive of prehistoric activity), and one objective of the dating programme is to clarify the true extent and character of prehistoric occupation. One of the benefits of this type of project is its approximation to a random transect across the country enabling a truer picture of inhabitation to be developed, and an assessment made of ‘off-site’ activities in the landscape. One specific focus of dating is on the iron smelting sites FTC 16.07 and FTC 12.05w. At the former site, it is expected that two stratified sequences of features will be bracketed by paired dates, and the existing Iron Age date for an isolated furnace confirmed by another date. Little is known about the date or nature of Iron Age iron production in the county Recommendations The five dates obtained thus far would benefit from paired dates, as is recommended for small items of charcoal and charred plant material. A large number of other features are currently undated, or have spot-dating which would benefit from clarification from absolute dates. Details of these are given in Table 18.2 by pipeline section site and feature. A total of up to 66 dates have been selected. The suitability of the samples for dating is to be confirmed following any further soil processing, and further selection will be made in the light of this . As indicated in Table 18.2, a first tranche 42 samples will be dated as a priority, where the material is suitable. Other samples will be held in reserve, either as a replacement where suitable material is not available in the first tranche, or where there remain ambiguities to be resolved. Samples from features thought to be of Roman date will also be held in reserve in case there is material in the remaining unprocessed soils (artefactual or palaeoenvironmental) that provides a more precise indication of date than the radioncarbon sample would. All radiocarbon dates refer to the AMS method. Ottery St Mary to Alsebeare section. The heavily burnt bone from Site 4.01 has been confirmed as human and a date for the cremation is recommended. Rather than dating the associated charcoal the direct dating of the human bone is preferred. Suitable human bone should be selected by the osteologist from either sample 63 or sample 64. Pit 02.03.004 (sample 174) would benefit from dating as it contains Neolithic Peterborough Ware, but the charred plant assemblage is more characteristic of a later prehistoric date (Carruthers, Appendix 15). Pits from sites 3.04 and 4.10 would benefit from dating to clarify the absolute dating of the associated prehistoric pottery, or because they 242 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design © Cotswold Archaeology are undated. The possible ring-ditch at site 5.01 is assumed to be Bronze Age but is as yet undated, and paired dates from primary fills are recommended. The fragments of plant material extracted from the basal peat-rich fills of the monolith sequence at site 14.12 would potentiallly be datable by AMS; however the lack of suitable material from the upper sandy deposits means that the upper end of the pollen sequence cannot be tied in and the radiocarbon date would be of limited value. Alyesbeare to Kenn section From site 13.02 two parallel ditches one with Iron Age and the other with Bronze Age ceramic spot-dating should be dated by radiocarbon if possible. Site 14.09 included the pits which currently have single and divergent AMS dates – second AMS samples are recommended for each if these. These may be associated with a ring-ditch which lacks dating. Also dating for the potential Iron Age or Roman enclosure ditch at site 15.02 is desirable. Fishacre to Choakford section Pit 2.02.010 requires a second determination to confirm the Early Neolithic date. Other pits within the group have Neolithihc pottery or are undated. From Site 12.05 the group of potential cremation pits (without bone) require dating. Paired dates are recommended for the possible iron smelting furnace at site 12.05w. At site 13.03 features identified as potential enclosure ditches require dates as the Roman and Iron Age spot-dates are based on two single and unconfirmed potsherds. The undated pits from Site 16.01 may be further examples of earlier prehistoric features. One iron smelting furnace from Site 16.07 has a single AMS date, which indicates an Iron Age date. The furnaces include an intercutting group and a series of dates from these features has the potential to bracket the metalworking activity at this important site. A single pit at Site 16.08 should be dated as it has an important charred plant assemblage, the composition of which is suggestive of an early medieval date. A number of pits from Site 18.12 contain Grooved Ware and confirmation of their date is required. Other associated [pits which appear to be grouped with these should also be dated if possible. Two pits from Site 18.13 require dates to confirm suggestion that they are Neolithic based on the composition of the charred plant assemblage. Site 19.07 and 19.08 both include pits with well-preserved charred plant or charcoal and dates for these are recommended. A feature identified as an SFB at Site 21.06 has a single, unexpected Middle Bronze Age date, and a second date is required to confirm this. Pit 24.03.036 has a significant charred plant assemblage and its presumed Roman date requires confirmation. At Site 33.01 undated pit 33.01.006 yielded a charred plant assemblage and flintwork characteristic of the early Prehistoric period, thus dating for this feature is recommended. 243 SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Figure18.1 C14 date from Pit 02.02.101 244 © Cotswold Archaeology © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Figure 18.2 C14 date 21.06.0008 245 from SFB SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Figure 18.3 C14 date from pit 14.09,003 246 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Figure 18.4 C14 date from pit 14.09.016 247 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Figure 18.4 C14 date from Furnace 16.07.008 248 © Cotswold Archaeology © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Table 18.1 Radiocarbon Dates Section Site Feature Fill Sample Our ID Lab ID Date FTC06 2.02 Pit 2.02.010 2.02.011 293 FTC06202010293 R32207/1 Neo material charcoal Corylus (hazel) 16.07 Furnace 16.07.008 16.07.016 248 FTC061607016248 R32207/2 NK Alnus (alder) 21.06 SFB 21.06.008 21.06.010 313 FTC062106010313 R32207/3 NK 14.09 Pit 14.09.003 14.09.006 207 ATK061409006207 R32207/5 14.09 Pit 14.09.016 14.09.009 203 ATK061409009203 R32207/4 E/MBA crem? LBA/EIA Hordeum sp. (barley) Ulex/cytisus (gorse/broom) Corylus (hazel) ATK06 Date 95% confidence 4495+/-25 BP 3339-3095 BC 2257+/-20 BP 391 BC to 350 BC 293 BC to 227 BC 219 BC to 210 BC 3021+/-25 BP 1385-1194 BC 3295+/-25 BP 1627-1504 BC 2212+/-25 BP 367-201 BC Table 18.2 Radiocarbon dating proposals Site Plot Feature Fill Sample no Date FTC06 2.02 Pit 2.02.010 2.02.011 293 Neo Priority low-high *, **, *** ** 2.02 Pit 2.02.004 2.02.005 290 Neo ** 2.02 2.02 12.05 12.05 12.05 12.05 Pit 2.02.006 Pit 2.02.013 Pit 12.05.019 Pit 12.05.011 Pit 12.05.009 Pit 12.05.004 2.02.007 2.02.014 12.05.022 12.05.012 12.05.015 12.05.005 12.05.006 12.05.007 292 294 231 228 229 233 234 235 Neo ?Neo NK NK NK NK NK NK ** * * *** * *** *** *** Rafter sample #1. Need paired date to confirm ENeo Assoc. with decorated pottery, and important CPR Another pit in this group Undated pit in this group Originally identified as a cremation One in group of ?cremations As pit 12.05.011 In group with pit 12.05.019 Date supporting above Date supporting above (reserve) 12.05w Furnace? 12.05w.004 12.05w.007 239 NK *** Iron smelting furnace? Need x2 dates 2 13.03 Ditch 13.03.004 ** Possible enclosure ditch. Need x2 dates from primary fills 2 Ditch 13.03.009 (=13.03.011) 193 191 192 003 IA 13.03 13.03.045 13.03.057 13.03.051 10.09 (ET) IA/RB ** Possible enclosure ditch (same as 13.03.004?) 1 249 Comment No. of dates per feature in first tranche (Reserve) 1 1 1 (R) (R) 1 (R) 2 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site Plot Feature Fill Sample no Date 13.03 Ditch 13.03.029 (= 13.03.011) Spread 16.01.006 Pit 16.01.007 Pit 16.01.009 Furnace 16.07.008 13.03.030 185 16.01.006 16.01.008 16.01.011 16.07.011 16.07.012 16.07.013 16.07.014 16.07.015 16.07.016 16.01 16.01 16.01 16.07 Comment IA/RB Priority low-high *, **, *** ** As above, supporting date No. of dates per feature in first tranche (Reserve) 1 278 279 280 242 241 245 246 247 248 NK NK NK IA * ** ** *** Burnt feature in group As above As above (R) 1 1 1 259 258 256 253 267 268 263 274 262 IA? *** Rafter sample #2. Need pair to confirm Iron Age Large furnace, earliest in stratified group IA? IA? IA? IA? IA? IA? IA? ** ** ** *** * *** *** Furnace in stratified group (above 16.07.021) Latest phase furnace in stratified group Ditto, middle fill Ditto, primary fill Furnace in stratified group Early phase furnace in stratified group Late phase pit in group of furnaces (above 16.07.055) Pit with exceptional CPR (?Medieval) Possible Grooved Ware pit Close to Neolithic group. Possibly medieval CPR Pit with Grooved Ware Pit ?pre-dating Neolithic gully Close to Neolithic group with HNS In pit group with possible Neolithic CPR Supporting above In pit group with pit 18.13.004 Isolated pit with important CPR. Medieval? Isolated pit with abundant charcoal Rafter sample #3. Need pair (R) 16.07 Furnace 16.07.021 16.07 16.07 Furnace 16.07.024 Furnace 16.07.077 16.07 16.07 16.07 Furnace 16.07.040 Furnace 16.07.055 Long pit 16.07.037 16.07.022 16.07.023 16.07.026 16.07.030 16.07.046 16.07.047 16.07.041 16.07.057 16.07.039 16.08 18.12 18.12 Pit 16.08.020 Pit 18.12.032 Pit 18.12.015 16.08.021 18.12.033 18.12.017 299 304 303 NK Neo NK ** *** ** 18.12 18.12 18.12 18.13 Pit 18.12.018 Pit 18.12.053 Pit 18.12.043 Pit 18.13.004 Pit 18.13.011 Pit 19.07.004 Pit 19.08.004 SFB 21.06.008 301 310 307 305 306 308 312 311 313 Neo Neo? NK NK 18.13 19.07 19.08 21.06 18.12.020 18.12.054 18.12.044 18.13.006 18.13.007 18.13.012 19.07.005 19.08.005 21.06.010 24.03 Pit 24.03.036 24.03.038 007 NK NK NK MBA C14 date Roman? *** *** ** *** *** * ** * ** 33.01 Pit 33.01.006 33.01.007 316 NK ** *** 250 Undated by pottery but assumed Roman by association. Important CPR ?Early prehistoric CPR in isolated pit (with flint) 2 2 (R) 2 2 1 1 1 1 1 1 2 (R) 1 (R) 1 (R) 2 © Cotswold Archaeology SWRP Devon Gas Pipelines: Post-Excavation Assessment and Updated Project Design Site Plot Feature OTA06 2.03 3.04 3.04 3.04 4.01 4.01 4.10 4.10 4.10 5.01 Pit 2.03.004 Pit 3.04.096 Pit 3.04.031 Pit 3.04.036 Cremation Pit 205.004 Cremation pit 205.004 Pit 4.10.004 Pit 4.10.016 Ditch 4.10.018 Ring Ditch 5.01.020 13.02 13.02 Ditch 13.02.123 Ditch 13.02.175 14.09 14.09 Pit 14.09.018 Pit 14.09.003 14.09 Pit 14.09.016 ATK06 14.09 15.02 Ring ditch? 14.09.021 Ditch 15.02.018 Fill Sample no Date 33.01.008 2.03.005 3.04.092 3.04.032 3.04.037 205.012 205.005 4.10.005 4.10.017 4.10.021 5.01.034 5.01.043 5.01.050 5.01.059 13.02.124 13.02.176 317 174 073 068 070 063 064 212 213 214 183 182 175 179 143 110 NK Neo Neo NK NK NK NK NK BA ?Roman NK / ?BA IA? MBA? Priority low-high *, **, *** *** *** *** * ** *** *** ** *** ** *** *** *** *** ** ** 14.09.020 14.09.004 14.09.006 14.09.008 14.09.009 14.09.010 14.09.011 14.09.023 15.02.005 209 ? 207 202 203 204 205 287 288 E/MBA E/MBA ** *** LBA/EIA *** Comment As above Need x3 dates? Due to ambivalent data Early Neolithic pottery Undated pit in Neolithic /Bronze Age group Undated pit in Neolithic /Bronze Age group Undated cremation Support for above In group with Bronze Age pit and ditch Containing probable Trevisker pottery Ditch not securely dated by single small sherd Assumed Bronze Age but undated Ditto Ditto, primary fill Ditto, primary fill Possible Iron Age ditch parallel to 13.02.175 Possible Bronze Age ditch parallel to 13.02.123 One of a group of pits with Bronze Age pottery No. of dates per feature in first tranche (Reserve) 3 1 (R) 1 2 1 1 (R) 2 1 1 1 1 Rafter sample #5, paired date needed 1 Rafter sample #4, paired date needed NK NK *** ** 251 Near Bronze Age pit group. Need x2 dates Curving ditch, may be Iron Age/Roman 2 (R)