Frontenac Formation, Mixed volcanic and sedimentary facies

Frontenac Formation, Mixed volcanic and sedimentary facies.
State New Hampshire
Name Frontenac Formation, Mixed volcanic and sedimentary facies
Geologic age Silurian?
Lithologic constituents
Major
Metamorphic > Metasedimentary
Metamorphic > Metaigneous > Metavolcanic
Comments Part of the Grenville Terrane (Connecticut Valley Trough). Felsic metatuff of Frontenac Formation = 432+/-10 U/Pb per J.N. Aleinkoff, oral commun., May 3, 1985.
References
NGMDB product
Counties Coos