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Rugg Brook Formation

Rugg Brook Formation - Sandy gray dolomite, dolomite conglomerate, and interbeds of gray-weathered sandstone, in St. Albans and Middlebury synclinoria.
StateVermont
NameRugg Brook Formation
Geologic ageCambrian
Original map labelCrb
CommentsPart of Champlain and Vermont Valleys
Primary rock typedolostone (dolomite)
Secondary rock typeconglomerate
Other rock typessandstone
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Bed)sandy gray dolomite, dolomite conglomerate
Minor
Sedimentary > Clastic > Sandstone (Bed)interbeds of gray-weathered sandstone
Sedimentary > Clastic > Conglomerate (Bed)dolomite 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 coverageChittenden - Franklin

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