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Geologic Unit: Paxton

Paxton Group (CT*,MA*,ME*,NH*)
Paxton Formation (CT*,MA*,NH*)

Proterozoic, Late*

Geologic Province:
New England province*

Areal Extent:

Type Locality:
Type area: West of Worcester, in the western part of the Worcester North and Worcester South 7.5-min quadrangles Named from town of Paxton, Worcester Co., central MA (Perry and Emerson, 1903).
Reference section: type sections of Dudley and Southbridge Formations (Barosh and Moore, 1988).

Dudley (MA*,CT*) and Southbridge (MA*,CT*) Formations of Paxton Group; Bigelow Brook Member (MA*) of Paxton Formation.

Unit Name History:
Named Paxton Schist (Perry and Emerson, 1903).
Redefined Paxton Quartz Schist (Emerson, 1917).
Revised; Age modified (Goldsmith and others, 1982).
MA State Geol. Map usage (Zen and others, 1983).
Revised to Paxton Group (Barosh and Moore, 1988).
Age modified; Isotopic dating (Pease, 1989).
Overview; Regional correlations discussed (Robinson 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