Usage:
Auburn Gneiss of Opelika Complex (AL*,GA*)
Auburn Formation of Opelika Group (AL,GA)
Geologic age:
Paleozoic, early*
Type section, locality, area and/or origin of name:
Named from exposures in and north of Auburn, Lee Co., east-central AL. (Bentley and Neathery, 1970).
Fresh exposures occur on U.S. Highway 280, 1 mi north of Pepperell, and below Opelika Dam, 2 mi northeast of Opelika, Lee Co. (Bentley and others, 1971).
AAPG geologic province:
Piedmont-Blue Ridge province*
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 ([ ]).