Ironbound Mountain Formation, Metarhyolite and microgranite intrusions

Ironbound Mountain Formation, Metarhyolite and microgranite intrusions.
State New Hampshire
Name Ironbound Mountain Formation, Metarhyolite and microgranite intrusions
Geologic age Lower Devonian
Lithologic constituents
Major
Metamorphic > Metaigneous > Metavolcanic > Metarhyolite
Minor
Igneous > Plutonic > Granitic > Granitemicrogranite intrusions
Comments Part of the Grenville Terrane (Connecticut Valley Trough).
References
NGMDB product
Counties Coos