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Plymouth Mine, Wakefield, Gogebic iron range, Gogebic Co., Michigan, USA

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Latitude & Longitude (WGS84): 46° 28' 13'' North , 89° 57' 27'' West
Latitude & Longitude (decimal): 46.47028,-89.95750


Commodities (Major) - Iron
Deposit Type: Secondary Enrichment
Development Status: Past Producer
Deposit Model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Host Rock Unit: Ironwood Iron-Formation
Host Rock: Iron Formation

Mineral List


7 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

Paleoproterozoic
1600 - 2500 Ma
Menominee Group; Ironwood Iron-formation

Age: Proterozoic (1600 - 2500 Ma)

Stratigraphic Name: Ironwood Iron Formation

Description: Interbedded cherty and slaty iron-formation. Locally, secondary enrichment has formed "soft ore" bodies. In eastern part of Gogebic Range, Ironwood Iron-formation is intercalated with pyroclastic rocks of Emperor Volcanic Complex, and in eastern half of T. 47 N., R. 43 W. (where mapped within unit Xip) consists entirely of black slate

Comments: Continental margin assemblage (north of Niagara Fault)

Lithology: Major:{banded iron formation,slate}

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]

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.

References

LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES (2ND ED.): CLEVELAND, OHIO, P. 58.

CROWELL, BENEDICT, AND MURRAY, C.B., INC., 1917, 1920, 1923, 1927, 1930, THE IRON ORES OF LAKE SUPERIOR (3RD-7TH EDS.): CLEVELAND.

LAKE SUPERIOR IRON ORES, MINING DIRECTORY AND STATISTICAL REPORT, PUBLISHED BY THE LAKE SUPERIOR IRON ORE ASSOCIATION, 1952.

 
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