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Dalton Formation

Dalton Formation - Schistose quartzite containing pebbles of feldspar and blue quartz; impure dolomite containing pebbles of quartz and feldspar occurs locally; conglomerate common near base. Occurs in southwestern Vertmont.
StateVermont
NameDalton Formation
Geologic ageCambrian
Original map labelCdt
CommentsPart of Champlain and Vermont Valleys
Primary rock typequartzite
Secondary rock typedolostone (dolomite)
Other rock typesconglomerate
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Quartziteschistose quartzite containing pebbles of feldspar and blue quartz
Minor
Sedimentary > Carbonate > Dolostoneimpure dolomite containing pebbles of quartz and feldspar occurs locally
Incidental
Sedimentary > Clastic > Conglomerate
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 coverageBennington - Rutland

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