Usage:
Summit Granite (CO*-local)
Confined to a small area at the Summit and west slope of Pikes Peak in Southern Rocky Mountain region, El Paso Co.
Geologic age:
Precambrian*
Type section, locality, area and/or origin of name:
Not designated. Origin of named not stated by author, but probably named from Pikes Peak Summit. Confined to a small area at the Summit and west slope of Pikes Peak in Southern Rocky Mountain region, El Paso Co., CO (Matthews, 1900).
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 ([ ]).