Doughnut Shale
Usage of Geologic Unit Name:
Doughnut Shale (CO*,UT)
Doughnut Formation (UT*)
Age:
Mississippian, Late*
Geologic Province:
Wasatch uplift*
Green River basin*
Uinta basin*
Uinta uplift*
Areal Extent:
CO(nw)*
UT(nc)*

Type Locality:
In cliffs east and northeast of Doughnut Falls, NE/4 sec. 19, T. 2 S., R. 3 E., Salt Lake Co., UT (Baker and Crittenden, 1961).

Unit Name History:
Named, provisionally (Granger and others, 1952). Formally named (Baker and Crittenden, 1961). Redescribed; Areal limits (Hansen, 1977). Areal limits (Hansen and others, 1981).

References

Granger, A.E., Calkins, F.C., Crittenden, M.D., Jr. and Sharp, B.J., 1952, Geology of the Wasatch Mountains east of Salt Lake City, IN Marcel, R.E., ed., Geology of the central Wasatch Mountains, Utah: Utah Geological Society, Guidebook to the geology of Utah, no. 8, p. 1-37.

Baker, A.A. and Crittenden, M.D., Jr., 1961, Geology of the Timpanogos Cave quadrangle, Utah: U.S. Geological Survey Geologic Quadrangle Map, GQ-132, 1 sheet, scale 1:24,000.

Hansen, W.R., 1977, Geologic map of the Canyon of the Lodore South quadrangle, Moffat County, Colorado: U.S. Geological Survey Geologic Quadrangle Map, GQ-1403, 1 sheet, scale 1:24,000.

Hansen, W.R., Carrara, P.E. and Rowley, P.D., 1981, Geologic map of the Crouse Reservoir quadrangle, Uintah and Daggett Counties, Utah: U.S. Geological Survey Geologic Quadrangle Map, GQ-1554, 1 sheet, scale 1:24,000.
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* show accepted USGS usage.
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.
The URL is: https://gotbooks.miracosta.edu/gonp/coloradoplateau/lexicon/doughnut.htm
Last modified: 1/7/2011