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...rst4=Ryan J. |date=December 11, 2019 |title=Geochronology of the Oliverian Plutonic Suite and the Ammonoosuc Volcanics in the Bronson Hill arc: Western New Ham ...10-108}}</ref> Petrochemical analysis of the unit concluded that the mafic rocks in the area showed island-arc tholeiite and backarc basin signals, which wo ...