USGS Visual Identifier
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Geologic Unit: Blowing Rock

Blowing Rock Gneiss of Elk Park Plutonic Suite (NC*)

Proterozoic, Middle*
Geologic Province:
Piedmont-Blue Ridge province*

Areal Extent:

Type Locality:
Blowing Rock, Cranberry quadrangle, Watauga Co., NC (Keith, 1903).

Unit Name History:
Named (Keith, 1903).
NC Geol. Survey usage (Stuckey and Conrad, 1958.)
Age refined; Revised (Rankin and others, 1972).
Isotopic dating (Fullagar, 1973).
Overview of NC Geol. Survey usage (Brown and others, 1985).
Isotopic dating (Rankin and others, 1993).

Note: If you need more information, please contact Nancy Stamm (
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
Database project personnel
Last modified: 15-Jan-2013