Shawangunk Formation
Bedrock unit in eastern Pennsylvania, New Jersey, and New York / From Wikipedia, the free encyclopedia
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The Silurian Shawangunk Formation is a mapped bedrock unit in eastern Pennsylvania, New Jersey, and New York. It is named for the Shawangunk Ridge for which it is the dominant rock type. The division of the Shawangunk between the Tuscarora Formation and Clinton Group has not been conclusively determined. The shift of nomenclature currently has the divide between Hawk Mountain and Lehigh Gap.
Quick Facts Type, Underlies ...
Shawangunk Formation | |
---|---|
Stratigraphic range: Lower Silurian | |
Type | Geological formation |
Underlies | Bloomsburg Formation |
Overlies | Martinsburg Formation |
Thickness | approx. 1400 ft[1] |
Lithology | |
Primary | quartzarenite (sandstone), conglomerate |
Location | |
Region | Appalachian Mountains |
Extent | Pennsylvania, New Jersey, New York |
Type section | |
Named for | Shawangunk Ridge |
Named by | W. W. Mather, 1840[2] |
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