Schenectady Formation

Graywacke, sandstone, siltstone, shale.
State New York
Name Schenectady Formation
Geologic age Upper Ordovician
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Sandstone > Graywacke
Minor
Sedimentary > Clastic > Mudstone > Shale
Comments part of Lorraine, Trenton, and Black River Groups up to 4500 ft. (1400 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 Albany - Greene - Montgomery - Saratoga - Schenectady - Schoharie