Geologic Unit: Erving
Erving Formation (MA*,CT*)
Erving Member of Littleton Formation (MA)
Erving, Millers Falls quadrangle, central MA (Emerson, 1917).
Unit Name History:
Named Erving hornblende schist (Emerson, 1917).
Overview; Age modified (Willard, 1951).
Not used (Balk, 1956).
Redescribed as Erving Formation; Age modified (Thompson, 1968).
Overview (Leo and others, 1977).
MA State Geol. Map usage (Zen and others, 1983).
Extended into CT (Rodgers, 1985).
Overview (Hatch and others, 1988).
Note: If you need more information, please contact Nancy Stamm (firstname.lastname@example.org).
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