Cobleskill Limestone (NYScc;5)

State	New York
Name	Cobleskill Limestone
Geologic age	Upper Silurian
Original map label	Scc
Comments	part of Akron Dolostone, Cobleskill Limestone, and Salina group 700-1000 ft. (210-300 m). Secondary unit description from USGS Lexicon website (ref. NY046) and reference NY030 and NY031: Bertie Group redefined. Author includes the Akron-Cobleskill interval and the newly named Moran Corner Waterlime in his revised Bertie Group. Term Rondout Formation is restricted to its type area in southeastern NY. In this report, Bertie Group in western NY subdivided into (ascending) Fort Hill Waterlime, Oatka Formation, Fiddlers Green Formation, Scajaquada Formation, Williamsville Formation, Cobleskill Formation-Akron Dolostone, and Moran Corner Waterlime. Fort Hill and Moran Corner Waterlimes absent in Ontario, CAN (Ciurca, 1990).
Primary rock type	dolostone (dolomite)
Secondary rock type	shale
Other rock types	limestone
Lithologic constituents
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. Ciurca, S.J., Jr., 1990, Eurypterid biofacies of the Silurian-Devonian evaporite sequence; Niagara Peninsula, Ontario, Canada, and New York, IN Lash, G.G., ed., Western New York and Ontario; field trip guidebook: New York State Geological Association Guidebook, no. 62, 62nd Annual Meeting, Fredonia, NY, p.Sat/Sun D1-D30. Heyman, Louis, 1977, Tully (Middle Devonian) to Queenston (Upper Ordovician) correlations in the subsurface of western Pennsylvania: Pennsylvania Geological Survey Mineral Resource Report, 4th series, no. 73, 2 charts. USGS Geologic Names Lexicon (GEOLEX) [http://ngmdb.usgs.gov/Geolex/]
Geographic coverage	Madison - Oneida - Onondaga