Devils River Limestone

Devils River Limestone
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