Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state > New York
|Name||Fordham Gneiss (A member)|
|Geologic age||Precambrian - Middle Proterozoic|
|Original map label||fa|
|Comments||Age change per USGS Lexicon website (ref. NY046). Unit is divided up into 6 units on printed map (f undivided, and fa - fe). Digital map also separates them out, but combines unit fd with unit fc due to unclear labeling on printed map? (hard to distinguish).|
|Primary rock type||gneiss|
|Secondary rock type||amphibolite|
|Other rock types||granulite|
Metamorphic > Gneiss > Biotite-gneissgarnet-biotite-quartz-plagioclase gneiss, biotite-hornblende-quartz-plagioclase gneiss
Metamorphic > Granulite
Metamorphic > Amphibolite
NYS Museum, NYS Geological Survey, NYS Museum Technology Center, 1999, 1:250,000 Bedrock geology of NYS, data is distributed in ARC/INFOr EXPORT format (with ".e00" extension) in 5 seperate files based on printed map sheets, http://www.nysm.nysed.gov/gis.html.
D. W. Fisher; Y. W. Isachsen, L. V. Rickard, 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 1:250000.
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