- Usage in publication:
-
- Long's Peak-St. Vrain granite
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Granite
- AAPG geologic province:
-
- Southern Rocky Mountain region
Wahlstrom, E.E., 1940, Ore deposits at Camp Albion, Boulder County, Colorado: Economic Geology, v. 35, no. 4, p. 477-500.
Summary:
Pg. 480. Long's Peak-St. Vrain granite. Idaho Springs gneisses and Boulder Creek granite gneiss are cut by a younger granite batholith locally called Long's Peak-St. Vrain granite. [Age is Precambrian.]
Notable exposures at Camp Albion, Boulder Co., central northern CO.
Source: US geologic names lexicon (USGS Bull. 1200, p. 2227).
- Usage in publication:
-
- Longs Peak-St. Vrain granite
- Modifications:
-
- Not used
- AAPG geologic province:
-
- Southern Rocky Mountain region
Summary:
Pg. D7 (table 1). Longs Peak-St. Vrain Granite of Wahlstrom (1940). Invalid. Incidental mention with no indication of intent to introduce formal name. 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 ([ ]).