Gulfian rocks, undivided

Gulfian rocks, undivided
State Texas
Name Gulfian rocks, undivided
Geologic age Late Cretaceous
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Carbonate > Marlstone (Bed)
Comments Marl, shale, and argillaceous limestone. Fossils indicate correlation with central Texas units--Taylor, Austin, upper part of Eagle Ford; thickness 300 +- ft.
References

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 Brewster - Culberson - Jeff Davis - Pecos - Reeves