| State | Texas |
|---|---|
| Name | Boracho Limestone |
| Geologic age | Early Cretaceous |
| Lithologic constituents |
Major
Sedimentary > Carbonate > Limestone (Bed)
Minor
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)
Incidental
Sedimentary > Clastic > Sandstone (Bed)
|
| Comments | (Van Horn-El Paso Sheet, 1968) Apache Mtns in SE Culberson Co., San Martine Limestone Member (above) thin to thick beds of argill. ls, thin interbeds of calcar shale, 230 ft; lower part (Levinson Ls Mbr) limestone, marl, shale, and locally near base-sandstone; thickness of formation 150+- ft. In Eastern part of Trans-Pecos and High Plains- limestone, microgranular, hard, thick bedded, fossiliferous, pale yell-brn; lower part (Levinson Ls Mbr) marl; thickness of formation 180-330 ft. |
| Stratigraphic units | San Martine Limestone Member (above), Levinson Limestone Member (below) |
| 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, 1979, Marfa Sheet, Geologic Atlas of Texas: Bureau of Economic Geology and 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 - Reeves |