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Ammonoosuc Volcanics, White quartz-kyanite rock and silicate iron-formation

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Ammonoosuc Volcanics, White quartz-kyanite rock and silicate iron-formation.
State New Hampshire
Name Ammonoosuc Volcanics, White quartz-kyanite rock and silicate iron-formation
Geologic age Middle - Upper Ordovician
Lithologic constituents
Major
Metamorphic > Schistwhite quartz-kyanite rock
Sedimentary > Chemical > Banded-iron-formationsilicate iron-formation
Comments Part of the Central Maine Composite Terrane (Central Maine Trough) - Variably metamorphosed sedimentary and volcanic rocks of greenschist to granulite facies, locally migmatized. Area includes structural belts between the Monroe fault on the west and the Campbell Hill fault on the east; that is, the Bronson Hill anticlinorium, Piedmont allochthon, Kearsarge-central Maine synclinorium, central New Hampshire anticlinorium, and Rochester-Lebanon (Maine) antiformal synclinorium.
References

Lyons, J.B., Bothner, W.A., Moench, R.H., and Thompson, J.B., Jr., 1997, Bedrock Geologic Map of New Hampshire: Reston, VA, U.S. Geological Survey Special Map, 2 sheets, scale 1:250,000.

https://ngmdb.usgs.gov/Prodesc/proddesc_37338.htm
NGMDB product
Counties Coos