![]() 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).]
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 |
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