Cashaqua Shale

Last updated
Cashaqua Shale
Stratigraphic range: Devonian
Type Formation
Unit of Sonyea Group
Underlies West Falls Group
Overlies(see description)
Location
RegionFlag of New York.svg  New York, Flag of Pennsylvania.svg  Pennsylvania
CountryFlag of the United States.svg  United States
SonyeaMap.jpg
The Cashaqua Shale and its various underlying members in western and west-central New York. [1]

The Cashaqua Shale is a geologic formation in New York. It preserves fossils dating back to the Devonian period.

The Cashaqua shale underlies the Rhinestreet Shale member of the West Falls Group, and overlies various other members of the Sonyea Group. In the western part of New York State, it overlies the Middlesex Shale, and moving eastward, it overlies the Pulteney shale and then the Rock Stream Formation in west-central New York. [1]

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References

  1. 1 2 Colton, George W.; de Witt, Wallace Jr. (1958). "Stratigraphy of the Sonyea Formation of Late Devonian Age in Western and West-Central New York". United States Geological Survey. United States Department of the Interior. Retrieved 22 September 2015.