Winooski Dolostone

Well-bedded dolostone weathering beige, cream, and buff, with green, red, or gray phyllite, siliceous partings, and thin beds of blue-quartz-pebble conglomerate and quartzite. Vermont Valley sequence and Middlebury synclinorium (above the Orwell and Champlain thrusts).
State Vermont
Name Winooski Dolostone
Geologic age Middle Cambrian
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > PhylliteGreen, red, or gray phyllite.
Sedimentary > Carbonate > Dolostone (Bed)Well-bedded dolostone weathering beige, cream. and buff.
Minor
Sedimentary > Clastic > Conglomerate (Bed)Thin beds of blue-quartz-pebble conglomerate.
Metamorphic > Metasedimentary > Metaclastic > Quartzite
References
NGMDB product
Counties Addison - Bennington - Chittenden - Rutland