Pre-Brazos River rocks, undivided

Pre-Brazos River rocks, undivided
State Texas
Name Pre-Brazos River rocks, undivided
Geologic age Pennsylvanian; Des Moines Series
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)in Leon and Sabana River Valleys contains thin ss units with a few limestone lentils
Comments mostly mudstone with thin sandstone units and a few limestone lentils
References

Bureau of Economic Geology, 1972, Abilene 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 Comanche