Whitehorse Group and Blaine Formation, undivided

Whitehorse Group and Blaine Formation, undivided
State Texas
Name Whitehorse Group and Blaine Formation, undivided
Geologic age Permian; Guadalupe Series
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Incidental
Sedimentary > Chemical > Evaporite > Gypsum (Bed)
Sedimentary > Carbonate > Dolostone (Bed)
Sedimentary > Clastic > Conglomerate (Bed)
Comments Whitehorse Sandstone--sandstone, sand, shale, local conglomerate, gypsum, selenite, and dolomite interbedded. Thickness about 850-900 ft in San Angelo area. Blaine Formation--shale, sandstone, gypsum, selenite, and dolomite interbedded, thickness 150-175 ft
Stratigraphic units Pease River Group, Guthrie Dolomite, Acme Dolomite, Mangum Dolomite
References

Bureau of Economic Geology, 1974, San Angelo Sheet, Geologic Atlas of Texas, Bureau of Economic Geology, 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 Coke - Nolan