Whitehorse Group, undivided (TXPwh;0)

State	Texas
Name	Whitehorse Group, undivided
Geologic age	Phanerozoic \| Paleozoic \| Permian [Guadalupe]
Original map label	Pwh
Comments	Sandstone, sand, shale, gypsum, selenite, and dolomite, interbedded Sandst and sand fine-grain quartz, silty, locally gypsiferous, thin bedded -massive, shades of red mottled green. Shale sandy, massive, red. gypsum thin bedded - massive, white, pink. Dolomite, thin discont. beds assoc. with gypsum, gray. maximum thickness 650 ft on Big Spring Sheet, 350-700 ft thick on Plainview Sheet.
Primary rock type	sandstone
Secondary rock type	shale
Other rock types	evaporite
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale (Bed) Sedimentary > Clastic > Sandstone (Bed) Minor Sedimentary > Chemical > Evaporite > Gypsum (Bed) Incidental Sedimentary > Carbonate > Dolostone (Bed)
Map references	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
Unit references	Bureau of Economic Geology, 1968, Plainview Sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000. Bureau of Economic Geology, 1974, Big Spring Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000.
Geographic coverage	Armstrong - Briscoe - Childress - Coke - Collingsworth - Cottle - Dickens - Donley - Fisher - Hall - Irion - Kent - King - Mitchell - Motley - Nolan - Scurry - Stonewall - Tom Green