USGS Visual Identifier
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Geologic Unit: Wakefield

Usage:
Wakefield Marble (MD*,PA*)
Wakefield Marble Member of Sams Creek Formation (MD)

Age:
Precambrian, late
Paleozoic, early(?)*
Geologic Province:
Piedmont-Blue Ridge province*

Areal Extent:
MD*
PA*

Type Locality:
Wakefield, Carroll Co., MD (Jonas and Stose, 1938).

Unit Name History:
Named (Jonas and Stose, 1938).
Areal limits; Overview (Stose and Stose, 1944).
Overview (Stose and Stose, 1946).
Age modified (Gray and others, 1960).
Revised (Edwards, 1986).

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