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Gatuna Formation

Gatuna Formation
State Texas
Name Gatuna Formation
Geologic age Phanerozoic | Cenozoic | Quaternary | Pleistocene-Middle(?)
Comments Reference section of 50-100 ft of sandstone and conglomerate described in Gatuna Canyon, southeastern NM by Bachman (1976). On Pecos Sheet (1976) south of Pecos River in Reeves Co., TX unit is mostly fine friable sand, yellowish to reddish orange, red; some conglomerate, gypsum (laminated to massive, gray and red), limestone (locally with chalcedony), and siltstone, gray purplish red and shale, greenish; upper few ft calichified; 400 ft in thickness, in many places only a few ft thick.
Primary rock type sand
Secondary rock type conglomerate
Other rock types evaporite; limestone; siltstone; shale
Lithologic constituents
Major
Unconsolidated > Coarse-detrital (Bed)
Minor
Unconsolidated > Fine-detrital (Bed)
Incidental
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Chemical > Evaporite > Gypsum (Bed)gypsum
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
Bachman, G.O., 1976, Cenozoic deposits of southeastern New Mexico and an outline of the history of evaporite dissolution: U.S. Geological Survey, Journal of Research v. 4, no. 2, p. 135-149.
Izett, G.A., and Wilcox, R.E., 1982, Map showing localities and inferred distributions of the Huckleberry Ridge, Mesa Falls, and Lava Creek ash beds . . .in the western United States and southern Cananda: U.S. Geological Survey Miscellaneous Investigatio
Bureau of Economic Geology, 1976, Hobbs Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000.
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, 1976, Pecos Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000.
Counties Crane - Crockett - Loving - Pecos - Reeves - Ward