Usage:
Sander Basalt of Culpeper Group of Newark Supergroup (VA*)
Geologic age:
Early Jurassic*
Type section, locality, area and/or origin of name:
Type section: exposures in the northwest part of the Sander quarry, 7.2 km (4.4 mi) S. 35 deg. E. of Warrenton, on the northeast side of VA State Road 643, Catlett quadrangle, Fauquier Co., VA (Lee, 1979).
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 ([ ]).