USGS Visual Identifier
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Geologic Unit: Dighton

Usage:
Dighton Conglomerate (RI*,MA*)
Dighton Conglomerate of /Rhode Island Group (RI,MA)
[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).]

Age:
Pennsylvanian, Late*

Geologic Province:
New England province*

Areal Extent:
MA*
RI*

Type Locality:
Named from occurrence in Dighton, Bristol Co., southeastern MA (Woodworth, 1899).

Unit Name History:
Named (Woodworth, 1899).
Overview (Emerson, 1917).
Age modified (Chute, 1950; Quinn and Oliver, 1962).
Age modified (Lyons and Darrah, 1978; Murray and Skehan, 1979).
MA State Geol. Map usage (Zen and others, 1983).
Assigned to Rhode Island Group (Skehan and Rast, 1990).
Overview (Goldsmith, 1991).

Note: If you need more information, please contact Nancy Stamm (nstamm@usgs.gov).
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
URL http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html
Database project personnel
Last modified: 7-Jan-2007