Usage:
No current usage.
(Rocks of †Arch Formation or †Arch Marble, both of †Evington Group (VA*), reallocated to †Archer Creek Formation of †Evington Group [now Alligator Back Formation of Lynchburg Group]. See Alligator Back.)
Geologic age:
early Paleozoic
Type section, locality, area and/or origin of name:
Type locality: vicinity of The Arch on Norfolk and Western RR, 1 mi east of Six Mile Station, Campbell Co., south-central VA (Brown, 1953).
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 ([ ]).