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National Geologic Map Database

Geologic Unit: Yadkin

Usage:

Yadkin Formation (NC)
Yadkin Formation of Albemarle Group (NC*)
Yadkin Graywacke of Albemarle Group (NC)


Geologic age:

Late Proterozoic to Early(?) Cambrian*


Type section, locality, area and/or origin of name:

Roadcut on west side of NC Highway 8 about 100 ft south of where Riles Creek crosses the road, 1 mi north of intersection with U.S. Highway 52, Stanly Co., central NC (Conley and Bain, 1965).


AAPG geologic province:

Piedmont-Blue Ridge province*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 ([ ]).