Bluff Mesa Formation

Bluff Mesa Formation; Western part of Trans-Pecos Texas.
State Texas
Name Bluff Mesa Formation
Geologic age Early Cretaceous
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Incidental
Sedimentary > Clastic > Sandstone (Bed, Lens)
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)
Comments Exposed in Quitman, Eagle, and Van Horn Mtns, Presidio Co., on Marfa Sheet (1979). Limestone, sandstone, and sandy shale. Mostly limestone, v. fine grained, sandy, oolitic near middle, thin to thick lenticular beds; lenses of quartz sandstone; some interbeds of sandy shale; abdt marine megafossils and foraminifers; thickness 1,100-1,470 ft.
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, 1979, Marfa Sheet, Geologic Atlas of Texas: Bureau of Economic Geology and 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 - Hudspeth - Jeff Davis - Presidio