USGS Visual Identifier
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Geologic Unit: Westwood

Westwood Granite (MA*)

Proterozoic, Late*
Geologic Province:
New England province*

Areal Extent:

Type Locality:
Named from exposures near Westwood-Norwood town line, Norwood quadrangle, Norfolk Co., eastern MA (Chute, 1966).

Unit Name History:
Named (Chute, 1966) [From GNC index card files; not synopsized].
Age modified (Chute, 1969) [From GNC index card files; not synopsized].
MA State Geol. Map usage (Zen and others, 1983).
Areal limits (Thompson and Hermes, 1990).
Overview; Isotopic dating (Wones and Goldsmith, 1991).

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