Tyson Formation - dolostone member

Largely massive, gray-, beige-, and pinkish-gray-weathering dolostone, beds of pebbly quartz dolostone, and pink- to orange-tan-weathering dolostone as lenses in phyllite. Contains beds of bluish-gray and whitish-gray vitreous quartzite. Similar to dolostone of the Forestdale Formation (CZfd). Eastern and western flank of the Green Mountain massif.
State Vermont
Name Tyson Formation - dolostone member
Geologic age Lower Cambrian and Neoproterozoic
Lithologic constituents
Major
Sedimentary > Carbonate > DolostoneLargely massive, gray-, beige-, and pinkish-gray-weathering dolostone, beds of pebbly quartz dolostone, and pink- to orange-tan-weathering dolostone as lenses in phyllite.
Minor
Metamorphic > Metasedimentary > Metaclastic > QuartziteContains beds of bluish-gray and whitish-gray vitreous quartzite.
References
NGMDB product
Counties Addison - Rutland - Windsor