Usage:
North Columbus gneiss complex [informal] (AL,GA)
Considered informal until formally published. The rank or lithologic term should not be capitalized.
Subunits:
Standing Boy quartz diorite (AL,GA), Smith's Road Exit gneiss (GA), and Double Churches gneiss (GA) (All informal).
Geologic age:
Neoproterozoic and early Paleozoic
Type section, locality, area and/or origin of name:
Not designated. Named from city in west-central GA (Hanley, 1987).
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 ([ ]).