Usage:
Fourmile Branch Formation (SC)
Geologic age:
Tertiary
Eocene, early
Type section, locality, area and/or origin of name:
Type section (subsurface): depth-interval 256 ft to 278 ft, Savannah River site well MWD-3A, northwestern Barnwell Co., SC, near the Aiken Co. line, southeast of Tinker Creek and west of Mill Creek. [UTM] 75,756 E., 69,839 N., or approx. Lat. 33 deg. 18 min. 09 sec. N., Long. 81 deg. 36 min. 23 sec. W. Named from Fourmile Branch where wells penetrate the unit (Fallaw and Price, 1992; 1995).
AAPG geologic 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 ([ ]).