Usage:
Ammons Formation of Great Smoky Group of Ocoee Supergroup (NC*)
Subunits:
Horse Branch Member.
Geologic age:
Neoproterozoic*
Type section, locality, area and/or origin of name:
Type section: both sides of Little Tennessee River from mouth of Nantahala River north to mouth of Grassy Branch, Swain Co., west-central NC. Named from Ammons Branch, which flows into Little Tennessee River west of Southern RR bridge (Mohr, 1973).
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 ([ ]).