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Fitch Formation

Fitch Formation - Quartz-plagioclase-biotite granulite; actinolite-diopside granulite; impure limestone and dolomite; mica schist; the carbonate-rich beds are typically an inch or two thick and segmented so as to give the weathered outcrop a characteristic pitted appearance. (Southeastern Vermont).
StateVermont
NameFitch Formation
Geologic ageSilurian
Original map labelSf
CommentsPart of Eastern Vermont
Primary rock typegranulite
Secondary rock typelimestone
Other rock typesdolostone (dolomite); mica schist
Lithologic constituents
Major
Metamorphic > Granulitequartz-plagioclase-biotite granulite; actinolite-diopside granulite
Incidental
Sedimentary > Carbonate > Dolostone (Bed)impure limestone and dolomite; the carbonate-rich beds are typically an inch or two thick and segmented so as to give the weathered outcrop a characteristic pitted appearance
Sedimentary > Carbonate > Limestone (Bed)impure limestone and dolomite; the carbonate-rich beds are typically an inch or two thick and segmented so as to give the weathered outcrop a characteristic pitted appearance
Metamorphic > Schist > Mica-schistmica schist
Map references
Nicholson, S.W., Dicken, C.L., Horton, J.D., Foose, M.P., Mueller, J.A.L., and Hon, Rudi, 2006, Preliminary integrated geologic map databases for the United States: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island, and Vermont: U.S. Geological Survey Open-File Report 2006-1272.
Unit references
Doll, C.G., Cady, W.M., Thompson, J.B., Jr., and Billings, M.P., 1961, Centennial Geologic Map of Vermont: Vermont Geological Survey, Miscellaneous Map MISCMAP-01, scale 1:250,000.
Geographic coverageEssex - Windham - Windsor

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