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Wet Legs Deposit, Western Margin Duluth Complex, St. Louis Co., Minnesota, USA

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Latitude & Longitude (WGS84): 47° 34' 56'' North , 92° 2' 15'' West
Latitude & Longitude (decimal): 47.58222,-92.03750
GeoHash:G#: cbqw9wh6d
Locality type:Deposit
Köppen climate type:Dfb : Warm-summer humid continental climate

Commodities (Major) - PGE, Nickel, Copper
Development Status: Unknown
Deposit Model: 9: Duluth Cu-Ni-PGE
Host Rock Unit: South Kawishiwi Intrusion
Structure: Several Ne-Trending Normal Faults Parallel The Midcontinent Rift Systam Near The Margin. These Faults Formed During The Opening Of The Rift And Controlled Emplacement Of The Troctolitic And Late Intrusions.
Host Rock: Troctolite
Tectonic Structure: Middle Proterozic Midcontinent Rift System

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

21 valid minerals.

Rock Types Recorded

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Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

1000 - 1200 Ma

ID: 2720643

Age: Stenian (1000 - 1200 Ma)

Stratigraphic Name: Duluth Complex

Description: Troctolite. Includes the Boulder Lake, Tuscarora (~1,099 Ma), Partridge River (~1,098 Ma), South Kawishiwi, and part of the Western Margin intrusions.

Comments: Part of the Duluth Complex - layered series. Part of the Keweenawan Supergroup and Midcontinent Rift Intrusive Supersuite.

Lithology: Major:{troctolite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

2500 - 2800 Ma

ID: 3185909
Archean volcanic rocks

Age: Neoarchean (2500 - 2800 Ma)

Lithology: Felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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Page, N.J. (1986) Descriptive model of Duluth Cu-Ni-PGE: in Cox, D.P. & Singer, D.A. editors: Mineral Deposit Models: U.S. Geological Survey Bulletin 1693, p. 16.
Hauck, S. , M. Severson, L. Zanko, S. Barnes, P. Morton, et al. (1997) An overview of the geology and oxide, sulfide, and platinum-group element mineralization along the western and northern contacts of the Duluth Complex: Geological Society of America Special Paper: 312 : 137-185.
Raič, S., Mogessie, A., Benkó, Z., Molnár, F., Hauck, S., & Severson, M. (2015). Arsenic-rich Cu-Ni-PGE mineralization in Wetlegs, Duluth complex, St. Louis county, Minnesota, USA. The Canadian Mineralogist, 53:105-132

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