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fault. The metamorphic grade on the southeastern side of the fault is distinctly higher than the other side, so many of the volcanic textures and features that were present have been destroyed or are no longer present there. The Ammonoosuc Volcanics actually consist of four major subunits: the Lyman Member, the Mullikin Brook Member, the Smutty Hollow Member, and the West Bath Member. These subunits are defined by the U.S. Geological Survey, but no information is given on how to distinguish these

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