| State | Texas |
|---|---|
| Name | Undivided parts of Washita and Fredericksberg Groups |
| Geologic age | Early Cretaceous |
| Lithologic constituents |
Major
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Mudstone > Claystone (Bed)
Minor
Sedimentary > Carbonate > Marlstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
|
| Comments | calcareous clay, argillaceous limestone, marl, and shale about 100- 140 ft in Waco Sheet |
| References | Bureau of Economic Geology, 1970, Waco Sheet, Geologic Atlas of Texas, University of Texas, 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. |
| NGMDB product | |
| Counties | Bell - Coryell - Lampasas |