Ottauquechee Formation - black quartzite member

Dark-bluish-gray to black, fine-grained vitreous quartzite. Beds are as thick as 30 m or are thin and interbedded with black phyllite. Rocks of the Rowe-Hawley Zone. Allochthonous cover sequence east of the Green Mountains: rift and drift stage metasedimentary and metavolcanic rocks and tectonic inclusions of ultramafic rocks.
State Vermont
Name Ottauquechee Formation - black quartzite member
Geologic age Cambrian
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > QuartziteDark-bluish-gray to black, fine-grained vitreous quartzite.
Minor
Metamorphic > Metasedimentary > Metaclastic > PhylliteInterbedded with black phyllite.
References
NGMDB product
Counties Addison - Rutland - Washington - Windsor