Usage:
John Muir Intrusive Suite (CA*)
Subunits:
(alphabetical) --all in CA*: Evolution Basin Alaskite, Lake Edison Granodiorite, Lamarck Granodiorite, Mono Creek Granite, Mount Givens Granodiorite, Round Valley Peak Granodiorite.
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
Type area is along John Muir Trail, between Mount Morrison roof pendant and Wheeler Crest, and Pine Creek septa on east and Potter Pass septum on west, Sierra Nevada, CA (Bateman, 1992).
AAPG geologic province:
Sierra Nevada 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 ([ ]).