Gunflint Range
The Gunflint Range is an iron ore deposit in northern Minnesota in the United States and Northwestern Ontario, Canada. The range extends from the extreme northern portion of Cook County, Minnesota into the Thunder Bay District, Ontario.
The Gunflint Iron
Rove Formation. Stromatolite structures are evident within the Gunflint Iron Formation.[4]
The
Gunflint Chert) are noted for containing Precambrian microfossils
.
See also
- Midcontinent Rift System
- Paulson Mine
- Cuyuna Range
- Vermilion Range (Minnesota)
- Gogebic Range
- Marquette Iron Range
References
- ISBN 0-8166-0953-5.
- ISBN 978-0-444-41934-7
- ^ Animikie Group; Iron-formation, Minnesota geologic map data, USGS
- ^ Geology of the Gunflint Iron Formation and the Sudbury Impact Layer, Northeastern Minnesota