Basal member of upper slice of Canaan Mountain Schist

Gray, generally rusty- or tan-weathering gneiss, composed of quartz, plagioclase, microcline, biotite, and muscovite, interlayered with feldspathic quartzite.
State Connecticut
Name Basal member of upper slice of Canaan Mountain Schist
Geologic age Cambrian?
Lithologic constituents
Major
Metamorphic > GneissGray, generally rusty- or tan-weathering gneiss, composed of quartz, plagioclase, microcline, biotite, and muscovite.
Minor
Metamorphic > Metasedimentary > Metaclastic > Quartziteinterlayered with feldspathic quartzite
Comments Part of Western Uplands; Proto-North American (Continental) Terrance - Displaced Iapetus Terrane
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 Litchfield