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Seven Rivers Formation

Seven Rivers Formation; gypsum, anhydrite, salt, dolomite, and siltstone; Guadalupian
State New Mexico
Name Seven Rivers Formation
Geologic age Phanerozoic | Paleozoic | Permian
Comments Anhydrite with interbeds of shale, dolomite, siltstone, and sandstone.
Primary rock type evaporite
Secondary rock type fine-grained mixed clastic
Other rock types dolostone (dolomite)
Lithologic constituents
Major
Sedimentary > Chemical > Evaporite (Bed)gypsum, anhydrite, salt, dolmite, and siltstone
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.
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.
USGS Geologic Names Lexicon (GEOLEX)
Counties Chaves - DeBaca - Eddy - Otero