| State | Texas |
|---|---|
| Name | Benevides Formation and Finlay Limestone, undivided |
| Geologic age | Early Cretaceous; Comanchean Series |
| Lithologic constituents |
Major
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Incidental
Sedimentary > Clastic > Mudstone > Shale (Bed)
|
| Comments | Benevides Fm--quartz sandstone, fine grained, calcareous, somewhat argillaceous, friable, grayish pink to pale red; thickness 100 ft of less. Finlay Ls is cliff-forming limestone along Rio Grande, underlies Del Norte Fm. Nodular and massive limestone with thin shaly partings. in Finlay Mtns 200 +-ft; Devil Ridge 600 ft; Kent area sandst., sandy ls., and massive coarse-grained limest., thickness 15-40 ft. Thickness 426 ft. in Sierra de Juarez, Chihuahua, MX. |
| References | Bureau of Economic Geology, 1968, Van Horn-El Paso Sheet, Geologic Atlas of Texas: Bureau of Economic Geology, The 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 | Culberson - Hudspeth - Jeff Davis - Presidio - Reeves |