Trans-International Boundary Aquifers in SW NM_WRRI_200003

Trans-International Boundary Aquifers in SW NM_WRRI_200003

Trans-International Boundary Aquifers in
Southwestern New Mexico, New Mexico
Water Resources Research Institute,
March 2000.
Source
Mimbres Basin
Hydrogeology
- Alluvial deposits
- Fluvial deposits
- Basin floor deposits
- Piedmont slope deposits
Hydrogeologic profile
San Francisco River Basin
Hydrostratigraphic Unit (HSU) Map
Map-Unit
Unit Definitions and Geomap-Unit
Geomap Unit
Correlations,
San Francisco River (SFR) Basin, New Mexico and Arizona
Compiled by John W. Hawley for NMWRRI and NMISC (May 2009)
hgeomatters@questoffice.net
Introduction: The Hydrostratigraphic-Unit (HSU) and Lithofacies-Assemblage (LFA)
classification system used in this study (Hawley and Kernodle 2000, Hawley et al. 2000) is
designed only for basin
basin-scale
scale characterization of hydrogeologic units in map and crosscross
section formats. Primary hydrogeologic-data sources include reports by Trauger (1972)
and Basabilvazo (1997). In addition, a large number of geologic field studies of a more
general geologic nature still provide much useful information for hydrogeologic-model
d l
development
(see
(
Ci d References).
Cited
f
) Recent workk in four
f
parts off the
h SFR
S
b
basin
is off
particular importance: 1) Reserve-graben subbasin (Crews 1994, Ratté 2001), 2) Almagraben subbasin (Houser 1987,1994; Ratté 2008), 3) northern Mangas trench to Alma
ggraben ((Mack 2004,, Mack and Stout 2004),
), and 4)) Clifton-Morenci,
f
, AZ area ((Ferguson
g
and Enders 2000, Ferguson et al. 2000).
Post-Gila Group HSUs (Valley-Fill and Piedmont-Slope Deposits, and Basaltic
V l i )
Volcanics)
RG—Channel, floodplain, and low-terrace deposits of major perennial/intermittent
streams of the San Francisco River basin ((includingg Blue and Tularosa Rivers);
) mostly
y
Lithofacies-Assemblage (LFA) a1-a2; with many small inclusions of unit VA (LFA
b); saturated thickness as much as 60 ft (18m); Holocene and uppermost Pleistocene.
Included in NM Statemap unit Qa. Notes: 1) Forms significant basin-fill aquifer
system component along with HSUs-UMG
HSUs UMG and GU; 2) Holocene + Pleistocene =
Quaternary (base age: 1.8-2.6 Ma)
VA—Valley-fill alluvium (undivided), deposits of larger ephemeral tributaries to major
perennial/intermittent streams (RG) and some fluvial-terrace fill; LFA b, with some
inclusions of unit RG (LFA a); as much as 60 ft (18m) thick; primarily in the vadose
zone, but basal parts may be seasonally saturated or contain “perched-groundwater”
bodies; Holocene and upper Pleistocene
Pleistocene. Included in NM Statemap unit Qa