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Gene Lake gneiss, Felch trough, Dickinson County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Gene Lake gneiss | - not defined - |
| Felch trough | - not defined - |
| Dickinson County | County |
| Michigan | State |
| USA | Country |
Gene Lake gneiss, Felch trough, Menominee Iron Range mining district, Michigan, USA
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Latitude & Longitude (WGS84):
46° 3' 57'' North , 87° 52' 17'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Quinnesec | 1,191 (2017) | 30.2km |
| Norway | 2,798 (2017) | 31.1km |
| Iron Mountain | 7,504 (2018) | 31.2km |
| Commonwealth | 403 (2017) | 33.1km |
| Florence | 592 (2017) | 33.4km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Ishpeming Rock and Mineral Club | Ishpeming, Michigan | 50km |
From Mineralogy of Michigan:
Uraninite (“pitchblende”)-carbonate mineralization occurs as open-space fillings in the hanging wall and, less extensively, in the footwall of an east-west brittle fault in the Gene Lake Gneiss complex (Archean) (Lehman, 1987). This fault parallels and locally cuts an older mylonitic fault that is parallel with the dominant axis of the Felch Trough. Since the trough is of Middle Precambrian age, the mylonitic fault is at least that old, and the brittle fault is younger. Age determinations based on U and Pb isotopic data suggest that the uranium mineralization was formed 400 m.y. ago (end of the Silurian) and remobilized at least once, at 317 m.y., the close of the Mississippian. Lehman (1987) interprets these data as indicating that the brittle fault and the mineralization are Paleozoic in age and are a reactivation of a Precambrian structure in response to forces forming the Michigan Basin to which the fault forms a north-south hinge line between a stable shelf and a periodically subsiding basin.
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
1 valid mineral.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Uraninite | 4.DL.05 | UO2 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Superior Craton
- Penokean OrogenCraton
- Superior DomainDomain
USA
- Michigan
- Menominee Iron Range mining districtMining District
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