Garnet-biotite-quartz-feldspar gneiss

Quartzite, quartz-feldspar gneiss, calcsilicate rock.
State New York
Name Garnet-biotite-quartz-feldspar gneiss
Geologic age Middle Proterozoic
Lithologic constituents
Major
Metamorphic > Gneiss > Biotite-gneissgarnet-biotite-quartz-feldspar gneiss, quartz-feldspar gneiss
Minor
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Metamorphic > Metasedimentary > Calc-silicate-rock
References

Fisher, D.W., Isachsen, Y.W., and Rickard, L.V., 1970, Geologic Map of New York State, consisting of 5 sheets: Niagara, Finger Lakes, Hudson-Mohawk, Adirondack, and Lower Hudson, New York State Museum and Science Service, Map and Chart Series No. 15, scale 1:250,000.

NGMDB product
Counties Dutchess - Orange - Putnam - Rockland - Westchester