Geologic Unit: Boxford
Boxford Member of Nashoba Formation (MA*)
Exposures in northwest half of town of Boxford, South Groveland quadrangle, Essex Co., northeastern MA (Castle, 1965).
Unit Name History:
Named Boxford Formation (1965).
Revised to member of Nashoba Formation (Skehan, 1975).
Age modified (Goldsmith, 1980).
MA State Geol. Map usage (Zen and others, 1983).
Overview (Goldsmith, 1991).
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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
Database project personnel
Last modified: 15-Jan-2013