| State | Texas |
|---|---|
| Name | Elm Creek Formation |
| Geologic age | Permian; Leonard Series |
| Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Minor
Sedimentary > Clastic > Mudstone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
|
| Comments | Shale, mudstone, limestone. Shale mostly in upper part, tan, gray, reddish-brn mudstone locally interbedded, increa. reddish northward, thick bedded. Limestone is nodular, intercalated with thin shale beds in zones 1-15 ft thick, beds thin northward, sparsely fossiliferous; basal beds make escarpment. Thickness of unit 130-150 ft. |
| Stratigraphic units | Albany Group (revised), Wichita Group (revised) |
| References | Bureau of Economic Geology, 1987, Wichita Falls-Lawton 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. |
| NGMDB product | |
| Counties | Baylor - Callahan - Coleman - Concho - McCulloch - Shackelford - Throckmorton |