San Andres Formation (NMPsa;0)

State	New Mexico
Name	San Andres Formation
Geologic age	Phanerozoic \| Paleozoic \| Permian
Original map label	Psa
Comments	Limesone (dolomite in north), sandstone, gypsum/evaporites, redbeds.
Primary rock type	carbonate
Secondary rock type	fine-grained mixed clastic
Other rock types	evaporite
Lithologic constituents	Major Sedimentary > Carbonate (Calcareous)limestone and dolomite with minor shale Minor Sedimentary > Clastic > Mudstone > Shale (Bed)limestone and dolomite with minor shale Incidental Sedimentary > Chemical > Evaporite > Gypsum (Bed)limestone and dolomite with minor shale
Map references	Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52. [http://pubs.er.usgs.gov/publication/ofr9752]
Unit references	Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52. [http://pubs.er.usgs.gov/publication/ofr9752] USGS Geologic Names Lexicon (GEOLEX) [http://ngmdb.usgs.gov/Geolex/]
Geographic coverage	Chaves - Cibola - DeBaca - Dona Ana - Eddy - Guadalupe - Lincoln - McKinley - Otero - San Miguel - Santa Fe - Sierra - Socorro - Torrance - Valencia