Geologic Unit: Cheshire
Cheshire Quartzite (MA*,CT*,VT*)
Exposures at or near Cheshire, Berkshire Co., western MA (Emerson, 1917).
Unit Name History:
First use (Emerson, 1898).
Named (Emerson, 1917).
Overview (Herz, 1958).
Areal limits (Knopf, 1962).
Extended into CT (Ratcliffe and Harwood, 1975).
MA State Geol. Map usage (Zen and others, 1983).
Areal limits (Thompson, 1990).
Thickness revised (Condon, 1993).
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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