Usage:
Routt Plutonic Suite (CO*)
Subunits:
(alphabetical) --all in CO*: Bakers Bridge Granite, Boulder Creek Granite or Boulder Creek Granodiorite, Cross Creek Quartz Monzonite, Denny Creek Granodiorite, Kroenke Granodiorite, Pitts Meadow Granodiorite, Powderhorn Granite, Tenmile Granite, Twin Spruce Quartz Monzonite.
Geologic age:
Paleoproterozoic*
Type section, locality, area and/or origin of name:
Type area: Rawah batholith in Park and northern Gore Ranges, CO, and Medicine Bow Mountains, WY. Named from Routt Co., CO (Tweto, 1987).
AAPG geologic province:
Southern 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 ([ ]).