Search results
Results from the WOW.Com Content Network
The igneous and metamorphic crystalline basement rock of New York formed in the Precambrian and are coterminous with the Canadian Shield.The Adirondack Mountains, Thousand Islands, Hudson Highlands, and Fordham gneiss, along with outcrops in the Berkshires just over the state line in Massachusetts, are part of the Grenville Province, a large piece of continental crust which accreted to the ...
"Geologic map of New York: Finger Lakes sheet". New York State Museum This page was last edited on 18 November 2024, at 07:08 (UTC). Text is available under the ...
The most recent major geologic force that shaped New York's landscape into its current form was the movement of a glacier during the late Pleistocene, which began to recede from the region around 18,000 years ago, [6] leaving behind many characteristic landforms, such as the Hudson River, [6] the Finger Lakes, [7] and the Helderberg Escarpment.
The West Falls Group is a geologic group in New York. It dates back to the Devonian period. Also stratigraphically equivalent to the Portage Group. The West Falls formation is bounded above by the Java Formation and below by the Sonyea Formation. It comprises the Angola Shale and Rhinestreet Shale Members.
[43] In the first New York State Geological Survey, also begun that year, James Hall established the term "Marcellus Shale" in his 1839 report titled "Marcellus Shales in Seneca County." [44] Professor Hall also argued in 1839 against formulating geological names based on observed characteristics that may vary from place to place or need ...
The Genesee Formation (Group) is a geologic formation in New York. It is equivalent the Harrell Shale in Pennsylvania. It date back to the Upper Devonian period. [1] It is the basal unit of the Frasnian and Upper Devonian period.
New York (state) geologic formation stubs (96 P) Pages in category "Geologic formations of New York (state)" The following 25 pages are in this category, out of 25 total.
"Geologic map of New York: Finger Lakes sheet". New York State Museum; Bergin, M. J. (1964). "Bedrock Geology of the Penn Yan and Keuka Park Quadrangles New York". Geological Survey Bulletin (1161-G). USGS; Schieber, J. (1999). "Distribution and deposition of mudstone facies in the Upper Devonian Sonyea Group of New York".