|Geologic age||Middle Ordovician|
Tectonite > Melange (Melange)chaotic mixture of Early Cambrian thru Middle Ordovician pebble to block-size angular to rounded clasts in a pelitic matrix of Middle Ordovician (Barneveld) age.
|Comments||part of Lorraine, Trenton, and Black River Groups up to 4500 ft. (1400 m).|
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.
|Counties||Albany - Columbia - Dutchess - Greene - Rensselaer - Saratoga - Washington|