Basal marble member [of Walloomsac Schist]

Dark-gray to white, massive to layered schistose or phyllitic calcite-phlogopite marble.
State Connecticut
Name Basal marble member [of Walloomsac Schist]
Geologic age Middle Ordovician
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metacarbonate > MarbleDark-gray to white, massive to layered schistose or phyllitic calcite-phlogopite marble.
Comments Part of Western Uplands; Proto-North American (Continental) Terrane - Carbonate Shelf
References

Rodgers, John, compiler, 1985, Bedrock Geological Map of Connecticut: Connecticut Geological and Natural History Survey, Hartford, Connecticut, 2 sheets, scale 1:125,000.

NGMDB product
Counties Fairfield - Litchfield