Union City Granite (GA*)
Carboniferous(?)*
Exposures around Shannon Shopping Mall at intersection of GA Highway 138 and U.S. Interstate Highway I-85, Union City, Fairburn 7.5-min quadrangle, Fulton Co., GA (Higgins and Atkins, 1981).
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 ([ ]).