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National Geologic Map Database

Geologic Unit: Marlboro

Usage:

Marlboro Formation (MA*,RI*)


Subunits:

Sandy Pond Amphibolite Member (MA*)


Geologic age:

Precambrian*
Proterozoic, Late*
Cambrian*
Ordovician*


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

Exposures along Main St, Marlboro, eastern MA (Emerson and Perry, 1907).


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 ([ ]).