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National Geologic Map Database

Geologic Unit: Powers Ferry

Usage:

Powers Ferry Member of Stonewall Gneiss (GA*)


Geologic age:

Late Proterozoic to Middle Ordovician(?)


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

Type area: Powers Ferry Landing, where Powers Ferry once crossed the Chattahoochee River, and exposed in cuts in Powers Ferry Landing shopping center, Fulton Co., GA (Higgins and McConnell, 1978).


AAPG geologic province:

Piedmont-Blue Ridge province*


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 ([ ]).