Salt Wash Member of Morrison Formation |
| Usage of Geologic Unit Name: Salt Wash Member of Morrison Formation (AZ*,CO*,NM*,UT*) |
| Age: Jurassic, Late* |
| Geologic Province: Paradox basin* Piceance basin* San Juan basin* Black Mesa basin* Plateau sedimentary province* |
| Areal Extent: AZ(n)* CO(w)* NM(nw)* UT(e)* |
| Type Locality: Not designated. Named for exposures near Salt Wash, a tributary of the Green River, Grand Co., UT (Lupton, 1914). |
| Unit Name History: Named a member of McElmo Formation (Lupton, 1914). Revised, assigned as basal member of the Morrison Formation; Overview; Areal limits (Gilluly and Reeside, 1928). Isotopic dating (Marvin, Dobson, 1979). Lower contact revised (O'Sullivan, 1984). Isotopic dating (Kowallis and Heaton, 1987). Lower contact revised (Condon and Huffman, 1988; Peterson, 1988; O'Sullivan, 1992). Areal limits (Condon, 1992). |
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References Lupton, C.T., 1914, Oil and gas near Green River, Grand County, Utah, IN Contributions to economic geology, 1912; Part 2, Mineral fuels: U.S. Geological Survey Bulletin, 541-D, p. D115-D133. Gilluly, James and Reeside, J.B., Jr., 1928, Sedimentary rocks of the
San Rafael Swell and some adjacent areas in eastern Utah, IN Shorter contributions
to general geology, 1927: U.S. Marvin, R.F. and Dobson, S.W., 1979, Radiometric ages; compilation "B", U.S. Geological Survey: Isochron/West, no. 26, p. 3-32. O'Sullivan, R.B., 1984, The base of the Upper Jurassic Morrison Formation in east-central Utah: U.S. Geological Survey Bulletin, 1561, 17 p. Kowallis, B.J. and Heaton, J.S., 1987, Fission-track dating of bentonites and bentonitic mudstones from the Morrison Formation in central Utah: Geological Society of America, Geology, v. 15, no. 12, p. 1138-1142. Condon, S.M. and Huffman, A.C., Jr., 1988, Revisions in nomenclature
of Middle Jurassic Wanakah Formation, northwest New Mexico and northeast
Arizona, IN Revisions to stratigraphic nomenclature of Jurassic and Cretaceous
rocks of the Colorado Plateau: Peterson, Fred, 1988, Stratigraphy and nomenclature of Middle and Upper Jurassic rocks, western Colorado Plateau, Utah and Arizona, IN Revisions to stratigraphic nomenclature of Jurassic and Cretaceous rocks of the Colorado Plateau: U.S. Geological Survey Bulletin, 1633-B, p. B13-56. Condon, S.M., 1992, Geologic framework of pre-Cretaceous rocks in the Southern Ute Indian Reservation and adjacent areas, southwestern Colorado and northwestern New Mexico, IN Geology and mineral resources of the Southern Ute Indian Reservation: U.S. Geological Survey Professional Paper, 1505-A, p. A1-A56. O'Sullivan, R.B., 1992, Correlation of Middle Jurassic and related rocks
from Ouray to Black Canyon, western Colorado: U.S. Geological Survey Oil
and Gas Investigations Chart, Robinson, John W., McCabe, Peter J., 1998, Evolution of a braided river system., the Salt Wash Member of the Morrison Formation (Jurassic) in southern Utah: In, Relative role of eustasy, climate, and tectonism in continental rocks: Shanley, Keith W., and McCabe, Peter J., editors, SEPM (Society for Sedimentary Geology) Special Publication: v. 59, p. 93-107. Robinson, John W., and McCabe, Peter J., 1997, Sandstone-body and shale-body dimensions in a braided fluvial system., Salt Wash Sandstone Member (Morrison Formation), Garfield County, Utah: AAPG Bulletin, v. 81, no. 8, p. 1267-1291. |
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The URL is: https://gotbooks.miracosta.edu/gonp/coloradoplateau/lexicon/morrison_saltwash.htm Last modified: 1/7/2011 |