Ammonoosuc Volcanics of Billings (1935) - metamorphosed aphyric rhyolite tuff

Metamorphosed aphyric rhyolite tuff. Stratified rocks of the Bronson Hill arch and Sawyer Mountain belt.
State Vermont
Name Ammonoosuc Volcanics of Billings (1935) - metamorphosed aphyric rhyolite tuff
Geologic age Upper and Middle Ordovician
Lithologic constituents
Major
Metamorphic > Metaigneous > Metavolcanic > MetarhyoliteMetamorphosed aphyric rhyolite tuff.
References
NGMDB product