Ironbound Mountain Formation, Basaltic to andesitic member

Ironbound Mountain Formation, Basaltic to andesitic member.
State New Hampshire
Name Ironbound Mountain Formation, Basaltic to andesitic member
Geologic age Lower Devonian
Lithologic constituents
Major
Igneous > Volcanic > Mafic-volcanic > Basalt
Igneous > Volcanic > Mafic-volcanic > Andesite
Comments Part of the Grenville Terrane (Connecticut Valley Trough).
References
NGMDB product
Counties Coos