Usage:
Dean Formation of Great Smoky Group of Ocoee Supergroup (GA*,NC*,TN*)
Geologic age:
Neoproterozoic*
Type section, locality, area and/or origin of name:
Crops out in a 0.5 mi-wide belt on each limb of Murphy syncline; western belt extends along west side of Dean Ridge, through Windy Ridge, and along upper course of Sugar Creek; eastern belt lies to west of Lake Toccoa, Mineral Bluff quadrangle, Fannin Co., central northern GA. Named from Dean Ridge (Hurst, 1955).
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 ([ ]).