Waits River Formation - slate and phyllite member

Predominantly dark- to light-gray, lustrous, carbonaceous chlorite-biotite-muscovite-quartz slate, phyllite, or schist; contains thin beds of quartzite and only sparse layers of punky-weathering limestone. Shown south of the Pomfret dome where rocks typical of the Gile Mountain Formation are absent, and near Randolph. Part of the Connecticut Valley Trough.
State Vermont
Name Waits River Formation - slate and phyllite member
Geologic age Lower Devonian and Upper Silurian
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > PhyllitePredominantly dark- to light-gray, lustrous, carbonaceous chlorite-biotite-muscovite-quartz slate, phyllite, or schist.
Metamorphic > Metasedimentary > Metaclastic > SlatePredominantly dark- to light-gray, lustrous, carbonaceous chlorite-biotite-muscovite-quartz slate, phyllite, or schist.
Metamorphic > Schist > Mica-schistPredominantly dark- to light-gray, lustrous, carbonaceous chlorite-biotite-muscovite-quartz slate, phyllite, or schist.
Minor
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Incidental
Sedimentary > Carbonate > LimestoneSparse layers of punky-weathering limestone.
References
NGMDB product
Counties Orange - Windham - Windsor