Usage:
Archer Creek Formation of Evington Group (VA*)
(†Archer Creek Formation of †Evington Group not used by the VA Geol. Survey; rocks included in Alligator Back Formation of Lynchburg Group. See also Alligator Back.)
Geologic age:
Early Cambrian*
Type section, locality, area and/or origin of name:
Named from exposures along Archer Creek about 1.5 mi above its confluence with James River. Exposed extensively along James River valley to southwest of Allen Creek, in neighborhood of Jack Mountain and Chestnut Mountain, and southeast of Evington, [Campbell Co.], south-central VA (Espenshade, 1954).
AAPG geologic province:
Piedmont-Blue Ridge province*
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 ([ ]).