|Name||Comanche Peak Limestone and Walnut Clay, undivided|
|Geologic age||Early Cretaceous|
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Mixed-clastic > Sandstone-mudstone (Bed)
|Comments||Comanche Peak Limestone--med-gray, poorly bedded ls. and clayey ls., argillaceous, thin shale interbeds, v. finely crystalline, in upper part clastic ls; v. fossilif., thickness 40-60 ft. Comanche Pk Ls overlies Walnut Clay and underlies Edwards Ls. Walnut Clay--interbedded shale, limestone, and sandstone. thickness 25+-ft.|
Bureau of Economic Geology, 1983, Lubbock Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, 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.
|Counties||Brown - Callahan - Comanche - Eastland|