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National Geologic Map Database

NGMDB

Geologic Unit: Mount Toby

Usage:

Mount Toby Formation of Newark Supergroup (MA*)


Geologic age:

Jurassic, Early*
Sinemurian*
Pliensbachian*


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

Extensively developed in the main mass of Mount Toby and exposed in the bed of Roaring Brook on the east flank of Mount Toby, Mount Toby quadrangle, Franklin Co., MA (Emerson, 1898).


AAPG geologic province:

New England province*
Deerfield basin*
Hartford basin*


NGMDB

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 ([ ]).

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Page Last Modified: Tue Jun 3 16:20:44 2014