USGS Visual Identifier
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Geologic Unit: Grassy Branch

Usage:
Grassy Branch Formation of Great Smoky Group (NC)

Age:
Precambrian
Proterozoic, Late
Geologic Province:
Piedmont-Blue Ridge province

Areal Extent:
NC


Type Locality:
Not designated. Named from Grassy Branch, which flows into Alarka Creek, Swain Co.[?], NC (Mohr, 1973).

Unit Name History:
Named (Mohr, 1973).
NC State Geol. Map usage (Brown and others, 1985).

Note: If you need more information, please contact Nancy Stamm (nstamm@usgs.gov).
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
URL http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html
Database project personnel
Last modified: 15-Jan-2013