Wappinger Group (NYOCAw;3)

Wappinger Group - (including Fishkill limestone and dolostone): Copake Formation ?-limestone, dolostone; Rochdale Formation-limestone, dolostone; Halcyon Lake Dolostone-locally cherty; Briarcliff Dolostone; Pine Plains Formation-dolostone, shale, oolite; Stissing Formation-dolostone, shale.

State	New York
Name	Wappinger Group
Geologic age	Cambrian - Lower Ordovician
Original map label	OCw
Comments	part of Wappinger and Stockbridge Groups, Poughquag Quartzite, and Metamorphic Equivalents up to 4000 ft. (1200 m).
Primary rock type	limestone
Secondary rock type	dolostone (dolomite)
Other rock types	shale; chert
Lithologic constituents	Major Sedimentary > Carbonate > Dolostone Sedimentary > Carbonate > Limestone Minor Sedimentary > Clastic > Mudstone > ShalePine Plains Formation-dolostone, shale, oolite; Stissing Formation-dolostone, shale Incidental Sedimentary > Chemical > ChertHalcyon Lake Dolostone-locally cherty
Map references	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. [http://www.nysm.nysed.gov/gis.html.]
Unit references	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.
Geographic coverage	Dutchess - Orange - Ulster