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National Geologic Map Database

Geologic Unit: Arvonia

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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).