Usage:
/Drayton Limestone Member of Harleyville Formation of Cooper Group (SC-local)
Drayton limestone beds (informal) in Cooper Group (SC*-local)
Recognized locally in subsurface.
For informal usage, the rank or lithologic term should not be capitalized. [Name not proposed in accordance with nomenclature guidelines (NACSN, 1983, 2005, 2021).]
Geologic age:
early Tertiary (late Eocene)
Type section, locality, area and/or origin of name:
Type section (subsurface) [=upper interval of informal Drayton limestone of Weems and others, 1987, USGS Open-file Rpt. 87-661, p. 84]: depth-interval 59 to 91 ft (land surface elevation 13 ft above sea level), USGS OS-1 core, [along Route 165 btw. Ravenel and Warren Crossroads, approx. Lat. 32 deg. 48 min. 30 sec. N., Long. 80 deg. 16 min. 08 sec. W., Osborn 7.5-min quadrangle, Charleston Co., southern SC] (Weems and others, 1987; Weems and Lemon, 1996; Weems and others, 2016).
[Origin of name not stated. Presumably named from Drayton Swamp just west of type section, Lat. 32 deg. 49 min. 40.63 sec. N., Long. 80 deg. 17 min. 43.36 sec. W., Osborn 7.5-min quadrangle (1980 ed.), Charleston Co., southern SC. But possibly named from Drayton Hall, along Ashley River a few mi northwest of Charleston, Johns Island 7.5-min quadrangle (1979 ed.), Charleston Co., southern SC.]
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 ([ ]).