State | Texas |
---|---|
Name | Unnamed Pennsylvanian rocks |
Geologic age | Pennsylvanian |
Lithologic constituents | Major
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)locally sandy and silty, some thin sandstone beds and impure limestone lentils
|
Comments | Shale locally sandy and silty; some thin sandstone beds and impure limestone lentils, gray to deep dull red; thickness exposed benearth Cretaceous overlap about 75 ft |
References | Bureau of Economic Geology, 1972, Dallas 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 | Hood - Parker |