Usage:
Arvonia Formation (VA*)
Arvonia Slate (VA*)
Also called Buckingham slate (informal) by the stone industry.
Subunits:
Bremo Quartzite Member (VA).
Geologic age:
Late Ordovician (Cincinnatian)*
Type section, locality, area and/or origin of name:
[Named from] exposures at Arvonia, Buckingham Co., James River region, central VA (Jonas, 1927b).
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 ([ ]).