Usage:
Rapidan Member of Manassas Sandstone of Culpeper Group of Newark Supergroup (VA*)
Geologic age:
Late Triassic (late Carnian)*
Type section, locality, area and/or origin of name:
Type section: outcrops along the south bank of the Rapidan River, southeast corner of the Culpeper East quadrangle, 720 m (2,360 ft) north of spot elevation 103 m (339 ft) on VA State Road 681, Unionville quadrangle, near Raccoon Ford, Orange Co., VA (Lee, 1980).
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 ([ ]).