West Bridgewater Formation - dark-gray and green phyllite member

Interbedded dark-gray and grayish-green chlorite-muscovite-quartz-knotted albitic phyllite, containing pods of bluish-gray dolostone. (Correlation with West Bridgewater Formation uncertain.) Mapped only in the area west of Granville. Cover rocks north of the Lincoln Mountain massif.
State Vermont
Name West Bridgewater Formation - dark-gray and green phyllite member
Geologic age Middle Ordovician
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > PhylliteInterbedded dark-gray and grayish-green chlorite-muscovite-quartz-knotted albitic phyllite.
Minor
Sedimentary > Carbonate > Dolostone (Lens)Containing pods of bluish-gray dolostone.
References
NGMDB product
Counties Addison