No current usage.
(†Buckland Formation of Culpeper Group (VA) replaced with the Mount Zion Church Basalt, Midland Formation, Hickory Grove Basalt, Turkey Run Formation, and Sander Basalt of the Culpeper Group. See Mount Zion Church, Midland, Hickory Grove, Turkey Run, Sander.)
Jurassic, Early
Fifteen localities are designated in an area from the Rappahannock River north to a point 3.2 mi (5.1 km) south of Leesburg, Loudoun Co., VA. Named from outcrops on U.S. Highway 29-211 near Buckland, Prince William Co., VA. (Lindholm, 1979).
Culpeper basin
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 ([ ]).