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National Geologic Map Database

Geologic Unit: Wamsutta

Usage:

Wamsutta Formation of Narragansett Bay Group (MA*,RI*)
Wamsutta Formation of /Rhode Island Group (MA,RI)

[An identical geographic name may not be applied to a unit [Rhode Island Group] and its parts [Rhode Island Formation] (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005).]


Geologic age:

Pennsylvanian, Early*
Pennsylvanian, Middle*


Type section, locality, area and/or origin of name:

Not designated. Wamsutta was proposed for name of Twp. but not adopted for North Attleboro, MA, where Wamsutta Mills are located (Woodworth, 1899).


AAPG geologic province:

New England province*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).