Blaine Formation

Blaine Formation
State Texas
Name Blaine Formation
Geologic age Permian; Guadalupe Series
Lithologic constituents
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Carbonate > Dolostone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Chemical > Evaporite > Gypsum (Bed)
Comments Mudstone, gypsum, dolomite, and sandstone. laterally persistent dolomite beds Guthrie, Acme, and Mangam Dolomite units are 2-8 ft thick and are white, tan, yellow, clayey, fine to coarse grained, thin to med. bedded, molds of pelecypods and large ammonoids and nautiloids locally abdt in coarse-grained beds. Mudst (and shale)-- silty, in part calcar., indistinct bedding, var. shades red and gray, brownish-red green, thin lenses and discordant seams of satin spar and selenite gypsum and thin beds and nodules of alabaster gypsum common. gypsum in units 1-10 ft thick and in laminated dolomitic beds. Minor channel fill sandst mostly near base. thickness 150-175 ft in San Angelo area, 250-400 ft in Wichita Falls-Lawton area.
Stratigraphic units Pease River Group, Guthrie Dolomite, Acme Dolomite, Mangum Dolomite

Bureau of Economic Geology, 1974, San Angelo Sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000.

Bureau of Economic Geology, 1987, Wichita Falls-Lawton Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, 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.

NGMDB product
Counties Childress - Coke - Collingsworth - Cottle - Fisher - Foard - Hall - Hardeman - Jones - King - Knox - Nolan - Stonewall - Taylor - Tom Green - Wheeler