|Geologic age||Permian; Guadalupe Series|
Sedimentary > Carbonate > Dolostone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
|Comments||GUADALUPE MTNS: reef limestone, in shelfward part dolomitic, massive, beds mostly 15 to 100 ft. thick, white, light gray, grayish yellow, brownish yellow; grades to Carsbad Group shelfward, to Bell Canyon Formation basinward (southeastward); marine fossils; thickness 1,000-2,000 ft. APACHE MTNS: reef limestone and dolomite, medium to coarse grained, indistinctly to thickly bedded, very light to dark gray; grades to Bell Canyon Formation basinward (northward), to Yates and Seven Rivers Formations shelfward (southward); marine megafossils; thickness up to 900 ft.|
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||Brewster - Culberson - Hudspeth - Pecos|