Carbonaceous phyllite and siltstone

Medium- to dark-gray carbonaceous phyllite, gray slate, and metasiltstone, locally containing light-gray, medium- to thick-bedded quartzite and dolomitic quartzite (CZbq). Unit resembles rocks of the Netop Formation but lacks the distinctive lenses and pods of bluish-gray dolostone of the Netop on Dorset Mountain, although lenses of whitish quartzite are present. Rocks of the Dorset Mountain slice (includes Dorset Mountain proper and Mount Equinox, southward to West Mountain near Bennington). Part of the Taconic Allochthon.
State Vermont
Name Carbonaceous phyllite and siltstone
Geologic age Lower Cambrian and Neoproterozoic
Lithologic constituents
Metamorphic > Metasedimentary > Metaclastic > Metasiltstone
Metamorphic > Metasedimentary > Metaclastic > PhylliteMedium- to dark-gray carbonaceous phyllite.
Metamorphic > Metasedimentary > Metaclastic > SlateGray slate.
NGMDB product
Counties Bennington