| State | Texas |
|---|---|
| Name | Devils River Limestone |
| Geologic age | Early Cretaceous; Comanchean Series |
| Lithologic constituents |
Major
Sedimentary > Carbonate > Limestone (Bed)
Minor
Sedimentary > Carbonate > Dolostone (Bed)
Incidental
Sedimentary > Chemical > Chert (Bed)
|
| Comments | Limestone, dolostone; hard, miliolid, pellet, rudistid, shell fragment biosparite and lime mudstone; locally dolomitized and brecciated, and chert-bearing; rudistid mounds more common in upper part; nodular ls. in basal part; thickness about 700 ft in Uvalda and Medina Counties (San Antonio Sheet, 1974). |
| References | Bureau of Economic Geology, 1974, San Antonio 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 | Bandera - Edwards - Kinney - Medina - Real - Uvalde - Val Verde |