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Units e and d [of Stockbridge Marble]

Units e and d [of Stockbridge Marble] - White to gray massive calcite marble, commonly mottled with dolomite and locally interlayered with dolomite marble and calcareous siltstone and sandstone.
State Connecticut
Name Units e and d [of Stockbridge Marble]
Geologic age Lower Ordovician
Comments Part of Western Uplands; Proto-North American (Continental) Terrane - Carbonate Shelf
Primary rock type marble
Secondary rock type dolostone (dolomite)
Other rock types siltstone; sandstone
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metacarbonate > MarbleWhite to gray massive calcite marble; locally interlayered with dolomite marble
Minor
Sedimentary > Carbonate > Dolostonecommonly mottled with dolomite
Sedimentary > Clastic > Siltstone (Calcareous)
Sedimentary > Clastic > Sandstone (Calcareous)
Map references
Connecticut Geological and Natural History Survey, DEP, in cooperation with the U.S. Geological Survey, 2000, Bedrock Geology of Connecticut, data format: shapefile, file name: bedrock, downloaded from: http://magic.lib.uconn.edu/cgi-bin/MAGIC_DBsearch2.pl?Geography=37800&Loc=0000 on 9/18/2003, scale 1:50,000.
Unit references
Rodgers, John, compiler, 1985, Bedrock Geological Map of Connecticut: Connecticut Geological and Natural History Survey, Hartford, Connecticut, 2 sheets, scale 125,000.
Counties Litchfield