Geologic Unit: West Rock
West Rock Diabase (CT*)
West Rock Dolerite (CT*)
Type area: West Rock, New Haven quadrangle, New Haven Co., CT (Fritts, 1962).
Unit Name History:
Named West Rock Diabase (Fritts, 1962). Redefined West Rock Dolerite (Rodgers, 1985).
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Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.
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U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
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Last modified: 15-Jan-2013