Geologic Unit: Pelham
Pelham Quartzite Member of Dry Hill Gneiss (MA*)
A low ledge, partially buried by sand and gravel, in front yard of Town Hall in Pelham, Hampshire Co., western-central MA (Robinson and Luttrell, 1985).
Unit Name History:
First used (Emerson, 1898).
Named (Emerson, 1917).
Abandoned (Balk, 1956).
[A few reports of limited distribution continued to use the name, Pelham Gneiss, for three more decades.]
MA State Geol. Map usage (Zen and others, 1983).
Formally revised to Pelham Quartzite Member; Age modified; Type locality stated (Robinson and Luttrell, 1985).
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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
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Last modified: 15-Jan-2013