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Geologic Unit: Pikes Peak
Map showing publication footprint
  • Usage in publication:
    • Pikes Peak Group
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Southern Rocky Mountain region
Publication:

Tweto, Ogden, 1977, Nomenclature of Precambrian rocks in Colorado, IN Contributions to stratigraphy: U.S. Geological Survey Bulletin, 1422-D, p. D1-D22.


Summary:

Invalid; name preoccupied; group consisted of Boulder Creek and Overland Mountain Granites; no relation to Pikes Peak Granite or batholith and 100 mi (160 km) distant from Pikes Peak. Listed with granitic rock units of more than one age group.

Source: GNU records (USGS DDS-6; Denver GNULEX).


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 ([ ]).

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