Utica Shale

Utica Shale
Utica Shale
Stratigraphic range: late Upper Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Underlies	Lorraine Shale, Martinsburg Formation, and Reedsville Formation
Overlies	Point Pleasant Formation, Trenton Group; Canajoharie shale
Thickness	up to 1,000 feet (300 m)
Lithology
Primary	Shale
Location
Coordinates	43°03′50″N 75°10′48″W / 43.064°N 75.18°W
Region	Appalachian Basin
Country	Canada; United States
Type section
Named for	Utica, New York
Named by	Ebenezer Emmons, 1842

The Utica Shale is a stratigraphical unit of Upper Ordovician age in the Appalachian Basin. It underlies much of the northeastern United States and adjacent parts of Canada.

It takes the name from the city of Utica, New York, as it was first described as an outcrop along the Starch Factory Creek east of the city by Ebenezer Emmons in 1842.^[2]

^ Cite error: The named reference usgs was invoked but never defined (see the help page).
^ Emmons, Ebenezer, 1842, Geology of New York; Part II, Survey of the second geological district. New York State Museum, 437p.

[usgs-1] Cite error: The named reference usgs was invoked but never defined (see the help page).

[2] Emmons, Ebenezer, 1842, Geology of New York; Part II, Survey of the second geological district. New York State Museum, 437p.

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