Quassaic Quartzite

Quartzite, sandstone, conglomerate.
State New York
Name Quassaic Quartzite
Geologic age Upper Ordovician
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Sedimentary > Clastic > Conglomerate
Comments part of Trenton Group and Metamorphic Equivalents up to 8000 ft. (2400 m).
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 Orange - Ulster