Usage:
Clinchfield Sand (GA*)
Clinchfield Formation of Barnwell Group (GA*,SC*)
Subunits:
Riggins Mill Member (GA,SC), Treadwell Member (GA), Albion Member (GA,SC), Utley Limestone Member (GA,SC)
Geologic age:
Tertiary*
Eocene, late*
Jacksonian
Eocene, middle
Claibornian
Type section, locality, area and/or origin of name:
Named from exposures along banks of Big Indian Creek along GA Highway 274, 2.4 mi northwest of Houston-Pulaski Co. line (Carver, 1966).
Type section (subsurface): Georgia Geologic Survey test hole 994, Penn-Dixie quarry (west) at Clinchfield, Houston Co., central GA (Herrick, 1972).
AAPG geologic province:
South Georgia sedimentary province*
Atlantic Coast basin*
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 ([ ]).