|Name||Brushy Canyon Formation|
|Geologic age||Permian; Guadalupe Series|
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Chemical > Chert (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Conglomerate (Bed)
Sedimentary > Carbonate > Limestone (Bed)
|Comments||Mostly sandstone (discontinuous Pipeline Shale Member at base not separately mapped). Sandstone, in part medium grained, thick bedded, a few persistent massive units, brownish yellow, yellowish gray; in part fine grained, thin bedded, beds in part varvelike, brownish yellow to brownish gray; a few sandy, fossiliferous limestone lenses; a few thin beds of green siliceous shale and chert. Pipeline Shale Member--up to 150 ft. of shale, sandstone, limestone, and conglomerate; shale, siliceous, platy, black; sandstone, shaly; limestone, many thin beds, gray and black; conglomerate at base up to 25 ft. thick; marine megafossils. Thickness 1,000 ft.|
|Stratigraphic units||Pipeline Shale Member|
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.