Deep Gulch Conglomerate Member of Jack Creek Quartzite of Phantom Lake Metamorphic Suite (WY*)
Late Archean*
Type section: in NE/4 sec. 12, T. 15 N., R. 88 W., Carbon Co., southeastern WY. Named from Deep Gulch in the Sierra Madre (Houston and others, 1992).
Northern Rocky Mountain region*
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 ([ ]).