|Name||Gypsum of Rustler, Salado, and Castile Formations, undivided|
|Geologic age||Permian; Ochoa Series|
Sedimentary > Chemical > Evaporite > Gypsum (Bed)
|Comments||Gypsum in collapse structures, white, banded with thin layers of brown calcite; brecciated as much as 30 ft below the surface, mostly fr. uppermost part of Rustler Formation; may include gypsum and limestone residual from Salado Formation. in Permian basin.|
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.
|Counties||Culberson - Reeves|