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Geologic Unit: Prescott

Usage:
Prescott Complex (MA*)

Age:
Devonian*
Geologic Province:
New England province*
Areal Extent:
MA*

Type Locality:
Packard Mountain in Prescott, Hampshire Co., west-central MA (Emerson, 1917).
Town of Prescott was obliterated by establishment of Quabbin Reservoir, so all exposures are present on Prescott Peninsula of Quabbin Reservoir (Robinson and Luttrell, 1985).

Subunits:
Cooleyville Granitic Gneiss (MA*)

Unit Name History:
First used as Prescott Diorite (Emerson, 1898).
Named Prescott Diorite (Emerson, 1917).
Revised to Prescott Intrusive Complex; Age modified (Robinson, 1967).
Age modified; Isotopic dating (Thompson and others, 1968).
MA State Geol. Map usage (Zen and others, 1983).
Revised to Prescott Complex, incl. Cooleyville Granitic Gneiss; Age modified; Type locality clarified (Robinson and Luttrell, 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