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National Geologic Map Database

Geologic Unit: Crystal Creek

Usage:

Crystal Creek Member of Carmel Formation of San Rafael Group (AZ,UT)


Geologic age:

Jurassic, Middle


Type section, locality, area and/or origin of name:

Type section: along divide between Deep Creek and Crystal Creek, near Cedar City, in T. 39 S., R. 10 W., either in Washington[?] Co. or in Iron[?] Co., UT. Named from Crystal Creek (Thompson and Stokes, 1970).
[Discrepancy in GNU records (USGS DDS-6) concerning whether type section occurs in Washington or Iron Co. --unresolved.]


AAPG geologic province:

Plateau sedimentary province
Great Basin province


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

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

Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).