Usage:
Cochran Formation of Chilhowee Group (AL*,GA*,NC*,TN*)
Geologic age:
Neoproterozoic to Early Cambrian (Vendian to Placentian)*
Type section, locality, area and/or origin of name:
Type locality: Cochran Creek, on south side of Chilhowee Mountain, [Tallassee 7.5-min quadrangle], Blount Co., eastern TN; makes crest of mountain northwest of lower course of creek (Keith, 1895; Rodgers, 1953).
AAPG geologic province:
Appalachian basin*
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 ([ ]).