Usage:
Dry Branch Formation of Barnwell Group (GA*,SC*)
Dry Branch Formation (SC)
Subunits:
Twiggs Clay Member (GA), Irwinton Sand Member (GA,SC), and Griffins Landing Sand Member (GA,SC); Tivola Limestone Member (GA)
Geologic age:
Tertiary*
Eocene, late*
Jacksonian
Type section, locality, area and/or origin of name:
Exposure along railroad cut at highway bridge where U.S. Highway 80 passes over Seaboard Coast Line, 3.7 km south of community of Dry Branch, Twiggs Co., GA (Huddlestun and Hetrick, 1979).
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 ([ ]).