| State | New York |
|---|---|
| Name | Amphibolite |
| Geologic age | Middle Proterozoic |
| Lithologic constituents |
Major
Metamorphic > Amphiboliteamphibolite, pyroxenic amphibolite
Minor
Metamorphic > Gneiss > Hornblende-gneisshornblende gneiss, commonly biotitic, garnetiferous
Incidental
Metamorphic > Metasedimentary > Calc-silicate-rocksubordinate calcsilicate 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 |