Hornblende granite and granite gneiss

With subordinate leucogranite.
State New York
Name Hornblende granite and granite gneiss
Geologic age Middle Proterozoic
Lithologic constituents
Igneous > Plutonic > Granitic > Granitehornblende granite
Metamorphic > Gneissgranite gneiss
Igneous > Plutonic > Granitic > Leucocratic-graniticsubordinate leucogranite

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