USGS Visual Identifier
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Geologic Unit: Carmel

Carmel Formation of San Rafael Group (AZ*,CO*,NM*,UT*,WY*)

Jurassic, Middle*
Bajocian, late*
Callovian, early*

Geologic Province:
Black Mesa basin*
Great Basin province*
Green River basin*
Paradox basin*
Plateau sedimentary province*
San Juan basin
Uinta basin*
Uinta uplift*
Areal Extent:

Type Locality:
Not designated. Derivation of name not stated (Gilluly and Reeside, 1928).
Composite of measured partial sections at type locality: (1) between Virgin River bridge and a point 2 mi west of Carmel village; (2) about 2 mi west of Meskin Bar, Colorado River; (3) about 2 mi east of Escalante; (4) Halls Valley near Burr trail; (5) head of Parunuweap Canyon; (6) Dry Canyon, about 2 mi above junction with Paria River. Named from Mount Carmel, in sec. 8, T. 41 N., R. 7 W., Kane Co., UT (Gregory and Moore, 1931).
Reference sections: (1) in N/2 SW/4 SW/4 sec. 29, E/2 SE/4 SE/4 sec. 30, T. 34 S., R. 3 E., Garfield Co., UT, and; (2) in SW/4 SW/4 sec. 1, SE/4 SE/4 sec. 2, T. 41 N., R. 8 E., Coconino Co., AZ (Peterson and Pipiringos, 1979).

(alphabetical): Co-op Creek Limestone Member (UT), Crystal Creek Member (UT*), Homestake Limestone Member (UT*), Judd Hollow Member (AZ*,UT*) or Judd Hollow Tongue (AZ*,UT*), /Kolob Limestone Member (UT), Paria River Member (UT*), Wiggler Wash Member (UT*), Winsor Member (UT*).

Unit Name History:
First used as basal formation in the San Rafael Group (new) in San Rafael Swell, Emery Co., UT (Gilluly and Reeside, 1928).
Overview, type locality and source of name stated (Gregory and Moore, 1931).
Revised to include Homestake Limestone Member (Mackin, 1954).
Overview (Harshbarger and others, 1957).
Eastern areal limits described (Wright and others, 1962).
Western areal limits; Overview (Schultz and Wright, 1963).
Revised to include Judd Hollow Tongue (new) (Phoenix, 1963).
Isotopic dating (Marvin and others, 1965).
Revised to include Kolob, Crystal Creek, Paria River, Winsor, and Wiggler Wash members (Thompson and Stokes, 1970).
Areal limits (O'Sullivan and Craig, 1973).
Mapped 1:24k in southwest Moffat Co., CO (Rowley and Hansen, 1979).
Reference; Revised (Peterson and Pipiringos, 1979).
Areal limits (Blakey and others, 1983).
Overview (Chapman, 1989).
Isotopic dating; Overview (Hintze and others, 1994).

Note: If you need more information, please contact Nancy Stamm (
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
Database project personnel
Last modified: 15-Jan-2013