U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Colbert

Usage:

Colbert Porphyry of Carlton Group (OK-recognized locally in western Murray Co.)
Colbert Rhyolite (OK)


Geologic age:

Middle Cambrian


Type section, locality, area and/or origin of name:

Origin of name not stated. Occurs in Arbuckle Mountains, central southern OK (US geologic names lexicons, USGS Bull. 896, 1200).


AAPG geologic province:

South Oklahoma folded belt


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).