Frontenac Formation, undivided

Interbedded thick feldspathic wackes, tan and green slates, and minor calcareous lenses.
State New Hampshire
Name Frontenac Formation, undivided
Geologic age Silurian?
Lithologic constituents
Metamorphic > Metasedimentary > Metaclastic > Metasandstone > Metagraywackeinterbedded thick feldspathic wackes
Metamorphic > Metasedimentary > Metaclastic > Slate
Comments Part of the Grenville Terrane (Connecticut Valley Trough).
NGMDB product
Counties Coos