| State | Texas |
|---|---|
| Name | Buda Limestone and San Martine Member of Borache Limestone, undivided |
| Geologic age | Late Cretaceous |
| Lithologic constituents |
Major
Sedimentary > Carbonate > Limestone (Bed)
Minor
Sedimentary > Carbonate > Marlstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
|
| Comments | Mapped in collapse areas. Buda Ls--upper part-- thin to thick beds, resistant, few chert nodules; middle--interbedded gray ls, marl, and calc shale, limonite nodules; lower--fossilif., aphanitic ls, thin to thick beds; formation is 200-350 ft thick. San Martine Limestone Member thin to thick beds of argillaceous ls, thin interbeds of calcar. shale, 230 ft. West Reeves Co., TX |
| References | Dietrich, J.W., 1966, Geology of Presidio area, Presidio County, Texas: Bureau of Economic Geology, The University of Texas, Austin, Texas, Geologic Quadrangle map no. 28.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 - Reeves |