Usage:
Carbon Ridge Formation (NV*,UT*)
Geologic age:
early Permian*
Type section, locality, area and/or origin of name:
Type area: on Carbon Ridge, lying just north of mouth of Secret Canyon, vicinity of Eureka, [in secs. 30 and 31, T. 18 N., R. 54 E., approx. Lat. 39 deg. 23 min. 44 sec. N., Long. 115 deg. 56. 11 sec. W., Pinto Summit 7.5-min quadrangle], Eureka Co., central NV (Nolan and others, 1956).
AAPG geologic 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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).