Church Rock Member of Chinle Formation
| Usage of Geologic Unit Name: Church Rock Member of Chinle Formation (AZ*,UT*) |
| Age: Triassic, Late* |
| Geologic Province: Black Mesa basin* Paradox basin* |
| Areal Extent: UT(se)* AZ(ne)* |
| Type Locality: Type section: about 4 mi north of Church Rock, for which unit probably named, on Comb Ridge and about 6.5 mi northeast of Kayenta, Navajo Co., AZ (Stewart and others, 1972). |
| Subunits: (alphabetical): Bowknot Bed (UT), Hite Bed (AZ*,UT*). |
| Unit Name History: First used as member of Chinle Formation (Stewart, 1957). Overview (Witkind and Thaden, 1963). Areal limits (Shawe and others, 1968). Not used (O'Sullivan, 1970). Overview; Revised (Stewart and others, 1972). Areal limits (O'Sullivan, 1977). Overview (Dubiel, 1987; 1989). |
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References Stewart, J.H., 1957, Proposed nomenclature of part of the Upper Triassic strata of southeastern Utah: American Association of Petroleum Geologists Bulletin, v. 41, no. 3, p. 441-465. Witkind, I.J. and Thaden, R.E., 1963, Geology and uranium-vanadium deposits of the Monument Valley area, Apache and Navajo Counties, Arizona: U.S. Geological Survey Bulletin, 1103, 171 p. Shawe, D.R., Simmons, G.C. and Archbold, N.L., 1968, Stratigraphy of Slick Rock district and vicinity, San Miguel and Dolores Counties, Colorado, IN Geologic investigations in the Slick Rock district, San Miguel and Dolores Counties, Colorado: U.S. Geological Survey Professional Paper, 576-A, p. A1-A108. O'Sullivan, R.B., 1970, The upper part of the Upper Triassic Chinle Formation and related rocks, southeastern Utah and adjacent areas, IN Shorter contributions to general geology, 1969: U.S. Geological Survey Professional Paper, 644-E, p. E1-E22. Stewart, J.H., Poole, F.G. and Wilson, R.F., 1972, Stratigraphy and origin of the Chinle Formation and related Upper Triassic strata in the Colorado Plateau region: U.S. Geological Survey Professional Paper, 690, 336 p. O'Sullivan, R.B., 1977, Triassic rocks in the San Juan basin of New Mexico and adjacent areas, IN Fassett, J.E., ed., San Juan basin III; northwestern New Mexico: New Mexico Geological Society Guidebook, no. 28, p. 139-146. Dubiel, R.F., 1987, Sedimentology and new fossil occurrences of the Upper Triassic Chinle Formation, southeastern Utah, IN Campbell, J.A., ed., Geology of Cataract Canyon and vicinity 1987; field symposium: Four Corners Geological Society Field Conference Guidebook, 10th Field Conference, Durango, CO, May 14-17, 1987, p. 99-107. Dubiel, R.F., 1989, Sedimentology and revised nomenclature of the Upper Triassic Chinle Formation and the Lower Jurassic Wingate Sandstone, northwestern New Mexico and northeastern Arizona, IN Anderson, O.J., and others, editors, Southeastern Colorado Plateau: New Mexico Geological Society Guidebook, no. 40, p. 213-223. |
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Note that data on this page contains information that has been partly revised from bibliographic resources available via the National Geologic Map Database GEOLEX:
http://ngmdb.usgs.gov/Geolex/geolex_qs.html.
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The URL is: https://gotbooks.miracosta.edu/gonp/coloradoplateau/lexicon/chinle_churchrock.htm Last modified: 1/7/2011 |