Grant Lake Formation

Geologic formation in Ohio and Kentucky

Grant Lake Formation
Stratigraphic range: Late Ordovician
Grant Lake Formation exposed in Boone County, Kentucky.
Type	Formation
Underlies	Arnheim Formation and Bull Fork Formation
Overlies	Fairview Formation
Location
Region	Ohio Kentucky
Country	United States

The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.

See also

References

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

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Chronostratigraphy of Ohio

Ph

Pz

P

Cisuralian	Dunkard Group Greene Formation Washington Formation

⁋

Gzhelian	Dunkard Group Waynesburg Formation Monongahela Group Uniontown Formation Pittsburgh Formation
Kasimovian	Conemaugh Group Casselman Formation Glenshaw Formation
Moscovian	Allegheny Group Pottsville Group

Viséan	Maxville Limestone
Tournaisian	Cuyahoga Formation Logan Formation Sunbury Shale
Coldwater Shale Rushville Shale

Famennian	Bedford Shale Berea Sandstone Cussewago Sandstone Ohio Shale Cleveland Shale Chagrin Shale Huron Shale)
Frasnian	Burket Shale Olentangy Shale (upper)

West Falls Group: Angola Shale; Rhinestreet Shale

Givetian	Tully Formation Mahantango Formation Olentangy Shale (lower) Plum Brook Shale Prout Limestone Silica Formation
Eifelian	Amherstburg Dolomite Columbus Limestone Delaware Limestone Detroit River Group Hillsboro Sandstone Marcellus Shale

Emsian	Amherstburg Dolomite Detroit River Group Hillsboro Sandstone
Lochkovian	Holland Quarry Shale

Bertie Formation

Ludfordian	Salina Group
Gorstian	Salina Group Guelph Dolomite

Wenlock

Homerian	Lockport Group Gasport Dolomite Guelph Dolomite Goat Island Dolomite

Brassfield Formation

Cabot Head Shale

Clinton Formation

Drowning Creek Formation

Manitoulin Dolomite

Upper	Arnheim Formation Cincinnati Group Drakes Formation Fairview Formation Grant Lake Formation Kope Formation Liberty Formation Miamitown Shale Queenston Shale Saluda Formation Trenton Limestone Waynesville Formation Whitewater Formation
Middle	Black River Group Lexington Limestone Point Pleasant Formation Trenton Limestone Wells Creek Formation

Furongian	Conasauga Formation Eau Claire Formation Kerbel Formation Knox Dolomite Rome Formation

Mt. Simon Sandstone

Z	Swift Run Formation

Middle Run Formation

This article about a specific stratigraphic formation in Kentucky is a stub. You can help Wikipedia by expanding it.

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This article about a specific stratigraphic formation in Ohio is a stub. You can help Wikipedia by expanding it.

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