Geologic Unit: Quinebaug
Quinebaug Formation (CT*)
Quinebaug Formation of Putnam Group (CT*, MA*)
Named from Quinebaug River, which in Plainfield and Danielson quadrangles, CT, flows only over rocks of formation (Dixon, 1964).
unnamed lower member, Black Hill Member (CT*), and unnamed upper member
Unit Name History:
Named (Dixon, 1964).
Age modified (Zartman and others, 1965; Goldsmith, 1980).
Extended into MA; Age modified (Goldsmith and others, 1982).
MA State Geol. Map usage (Zen, 1983).
Age modified (Goldsmith, 1985).
Areal limits; Overview (Wintsch and others, 1990).
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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