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National Geologic Map Database

Geologic Unit: Cherry Brook

Usage:

Cherry Brook Formation (MA*)


Geologic age:

Late Proterozoic*


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

Type locality: approx. 1 mi (1.6 km) north of Natick quadrangle in adjoining Concord quadrangle, southeast of Merriam Street crossing of Cherry Brook, with felsic volcanic rocks about 0.6 mi (0.96 km) east of Merriam Street, along railroad in Natick quadrangle, Middlesex Co., eastern MA (Nelson, 1974).


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 ([ ]).