Usage:
Coosawhatchie Formation (SC*)
Coosawhatchie Formation of Hawthorn Group (FL*,GA*,SC*)
Geologic age:
late Tertiary (middle Miocene; early Serravallian)*
Type section, locality, area and/or origin of name:
Named from exposures in Atlantic Coast Line RR cut south of Coosawhatchie, Jasper Co., eastern SC. Also exposed at Dawsons Landing on Coosawhatchie River (Heron and others, 1965).
Reference section (subsurface): depth-interval +11 to -23 m, Harris No. 1 core W-13769, in SW/4 SE/4 sec. 78, T. 6 S., R. 25 E., Clay Co., FL (Scott, 1988).
AAPG geologic province:
Atlantic Coast basin*
South Georgia sedimentary province*
Florida platform*
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 ([ ]).