Black Dragon Member of Moenkopi Formation

Usage of Geologic Unit Name:
Black Dragon Member of Moenkopi Formation (UT*)
Triassic, Early*
Geologic Province:
Paradox basin*
Areal Extent:
Type Locality:
Type section: Black Dragon Canyon in northeast section of San Rafael Swell, T. 21 S., R. 13 E., Emery Co., UT (Blakey, 1974).
Unit Name History:
Named as lower member of Moenkopi Formation, replacing name "lower slope-forming member" in southeast UT (Blakey, 1974). Revised (Welsh and others, 1979). Revised, lower part interfingers with and is age-equivalent to Hoskinnini Member of Moenkopi.

Blakey, R.C., 1974, Stratigraphic and depositional analysis of the Moenkopi Formation, southeastern Utah: Utah Geological and Mineral Survey Bulletin, no. 104, 81 p.

Welsh, J.E., Stokes, W.L. and Wardlaw, B.R., 1979, Regional stratigraphic relationships of the Permian "Kaibab" or Black Box Dolomite of the Emery high, central Utah, IN Baars, D.L., ed., Permianland: Four Corners Geological Society Field Conference Guidebook, 9th Field Conference, Moab, UT, September 27-30, 1979, p. 143-149.

Huntoon, J.E., Dubiel, R.F. and Stanesco, J.A., in press, Tectonic influence on development of the Permian-Triassic unconformity and basal Triassic strata, Paradox basin, southeastern Utah [IN Mesozoic of the Western Interior volume]: Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section; Also, 1994, Geological Society of America Abstracts with Programs, v. 26, no. 6, p. 19.

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Last modified: 1/7/2011