- Usage in publication:
-
- Longs Peak granite
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Granite
- AAPG geologic province:
-
- Southern Rocky Mountain region
Summary:
Pg. 51-63. Longs Peak granite. Coarse pinkish granite with well-defined tabular crystals of feldspar. Intrudes the Big Thompson schist and is intruded by Mount Olympus granite. Age is pre-Cambrian.
Named from the famous peak, Longs Peak, Larimer Co., central northern CO, a large part of whose bulk is made of this porphyritic granite.
Source: US geologic names lexicon (USGS Bull. 896, p. 1214).
- Usage in publication:
-
- Longs Peak granite
- Modifications:
-
- Not used
Summary:
Pg. 29. Longs Peak granite. Included in Silver Plume granite in the Front Range area, central northern Colorado.
Source: US geologic names lexicon (USGS Bull. 1200, p. 2227).
- Usage in publication:
-
- Longs Peak Granite
- Modifications:
-
- Not used
- AAPG geologic province:
-
- Southern Rocky Mountain region
Summary:
Pg. D7 (table 1). Longs Peak Granite of Fuller (1924). Inconsistent usage; in subsequent papers, Fuller (under name M.F. Boos) has variously used for same rock "Longs Peak Granite," " granite of Longs Peak batholith," and "Silver Plume Granite." Rocks included in granitic rocks and gabbro of approx. 1,400 Ma age group (Precambrian Y), northern Front Range, Colorado.
(See also Peterman and others, 1968, Jour. Geophys. Research, v. 73, no. 6, p. 2277-2296.).
Source: Publication.
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 ([ ]).