Usage:
Tibbstown Formation of Culpeper Group (VA*)
Subunits:
Mountain Run Member (VA*), Haudricks Mountain Member (VA*)
Geologic age:
Triassic, Late*
Norian*
Type section, locality, area and/or origin of name:
Type section: outcrops in Tibbstown at the southern foothills of Haudricks Mountain, less than 1 km (1.6 mi) northeast of Barboursville, Orange Co., VA (Lee and Froelich, 1989).
AAPG geologic province:
Piedmont-Blue Ridge province*
Culpeper basin*
Barboursville 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 ([ ]).