Oneota Dolomite
Oneota Formation Stratigraphic range: Ordovician | |
---|---|
Type | Formation |
Unit of | |
Sub-units | Kasota limestone |
Underlies | Shakopee Dolomite |
Overlies | Jordan Sandstone and Potosi Dolomite |
Location | |
Region | Midwestern United States |
Country | United States |
Extent | Illinois, Indiana, Minnesota, and Wisconsin |
The Oneota Formation is a geologic formation in the upper Midwest (United States) including Minnesota, Illinois, Indiana and Wisconsin. It preserves marine fossils dating back to the Ordovician period.[1]
The Sugar Loaf landmark located in Winona, Minnesota is made of Oneota Dolomite.
See also[]
References[]
Categories:
- Ordovician Minnesota
- Ordovician Iowa
- Ordovician geology of Wisconsin
- Ordovician southern paleotropical deposits
- Midwestern United States geologic formation stubs
- Wisconsin geography stubs