Dalton Formation - lustrous quartz schist member

Dark-gray to silvery-gray, tourmaline-muscovite-biotite-quartz schist and feldspathic schist and quartzite. Occurs on eastern flank of the southern Green Mountain massif; similar in appearance to CZhs of the Hoosac Formation exposed to the east. Unit interfingers to the north with rocks of the Tyson Formation and to the east with rocks of the Hoosac Formation. Cover rocks of the Southern Green Mountains.
State Vermont
Name Dalton Formation - lustrous quartz schist member
Geologic age Lower Cambrian and Neoproterozoic
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Metamorphic > Schist > Quartz-feldspar-schistFeldspathic schist.
Metamorphic > Schist > Mica-schistDark-gray to silvery-gray, tourmaline-muscovite-biotite-quartz schist.
References
NGMDB product
Counties Bennington - Rutland - Windham