Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state > New York
|Geologic age||Upper Ordovician|
|Original map label||Oo|
|Comments||part of Lorraine, Trenton, and Black River Groups up to 1600 ft. (490 m). Secondary unit descriptions from USGS website (ref. NY046) and reference NY034, NY019: The Oswego Formation in northwestern VA consists of greenish gray, brown weathering, fine-grained sandstone, tan shale, and conglomerate. Overlies the Martinsburg Formation and underlies the Juniata Formation. The combined thickness of the Oswego with the Juniata is 450 to 500 feet. The Oswego and Juniata intertongue and in places the Oswego underlies the Tuscarora Formation (Rader and Briggs, 1976), In cross section E-E'. Area of coverage is subsurface of central West Virginia and northern Virginia. Oswego Sandstone used in Allegheny structural front for argillaceous sandstone overlying Reedsville Formation. Pre-Silurian erosion has removed it from areas between North Mountain thrust fault to Blue Ridge. Age is Late Ordovician (latest Maysvillian through earliest Richmondian) based on fossils (Ryder, 1992).|
|Primary rock type||sandstone|
|Secondary rock type|
|Other rock types|
Sedimentary > Clastic > Sandstone
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.
|Geographic coverage||Jefferson - Lewis - Oneida - Oswego|
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