Seven Rivers Formation

Seven Rivers Formation
State Texas
Name Seven Rivers Formation
Geologic age Permian; Guadalupe Series
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Bed)
Minor
Sedimentary > Carbonate > Limestone (Bed)
Comments Dolomite, some dolomitic limestone, fine grained, medium to thick bedded, light gray to very pale orange; grades to Capitan Limestone northward (reefward); marine microfossils; thickness 440 ft.
Stratigraphic units Carlsbad Group
References

Bureau of Economic Geology, 1968, Van Horn-El Paso Sheet, Geologic Atlas of Texas: Bureau of Economic Geology, The University of Texas at Austin, scale 1:250,000.

Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000.

NGMDB product
Counties Culberson - Jeff Davis