Usage:
Mouat quartz monzonite [informal] (MT)
Considered informal. The rank or lithologic term should not be capitalized.
Geologic age:
Late Archean
Type section, locality, area and/or origin of name:
Not designated. Mapped just southeast of the Mouat Mine (chromite mine) in northeastern part of Cathedral Peak area, Stillwater Co., MT. Origin of name not stated by author, but probably named from mine (Butler, 1966).
AAPG geologic province:
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 ([ ]).