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Peninsula Mine, Ontonagon Co., Michigan, USAi
Regional Level Types
Peninsula MineMine
Ontonagon Co.County
MichiganState
USACountry

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Rock pile for the Peninsula Mine

Peninsula Mine, Ontonagon Co., Michigan, USA
Rock pile for the Peninsula Mine

Peninsula Mine, Ontonagon Co., Michigan, USA
Rock pile for the Peninsula Mine

Peninsula Mine, Ontonagon Co., Michigan, USA
Latitude & Longitude (WGS84): 46° 43' 29'' North , 89° 10' 36'' West
Latitude & Longitude (decimal): 46.72472,-89.17667
GeoHash:G#: f029f9zx1
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Ontonagon1,324 (2017)19.3km
White Pine474 (2017)31.2km


Commodities (Major) - Copper
Deposit Type: Fissure
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Portage Lake Volcanics
Host Rock: Basalt

The Peninsula Mining Company was organized in 1850 to work a vein that crossed the property. The mine was worked previously by the Ohio Trap Rock Company between 1847 and 1849 with little success. Work by the Peninsula began in 1851 but showed little promise of copper as only 6,000 pounds of copper was produced by 1854. The mine was abandoned at this time. The property was later split up to form parts of the Minesota, National, and Creek Mines.

Regions containing this locality

North America PlateTectonic Plate
Keweenaw Peninsula, Michigan, USAPeninsula

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


1 valid mineral.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Copper
Formula: Cu
Reference: Lee A. Miller (1986) Index & Reference Guide for the Copper Mining Industry of Michigan Vol III Ontonagon County.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu

List of minerals for each chemical element

CuCopper
Cu CopperCu

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

Stenian
1000 - 1200 Ma



ID: 2928167
Portage Lake Volcanics

Age: Stenian (1000 - 1200 Ma)

Stratigraphic Name: Portage Lake Volcanics

Description: Lava flows, mostly basalt, andesite and felsite flows and subordinate interflow sedimentary rocks.

Comments: This unit is the same as unit Yp on paper map of Sims (1992). Description is taken from that unit description. Original map source: Cannon, W.F., Kress, T.H., Sutphin, D.M., Morey, G.B., Meints, Joyce, and Barber-Delach, Robert, 1997, Digital Geologic Map and mineral deposits of the Lake Superior Region, Minnesota, Wisconsin, Michigan: USGS Open-File Report 97-455 (version 3, Nov. 19

Lithology: Major:{basalt}, Minor:{basaltic andesite}, Incidental:{rhyolite, sandstone mudstone}

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]

Mesoproterozoic
1000 - 1600 Ma



ID: 3190266
Mesoproterozoic volcanic rocks

Age: Mesoproterozoic (1000 - 1600 Ma)

Comments: Mid-Continent Rift

Lithology: Bimodal 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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 210-211, SITE ID # 660073, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
Hamka, T., 2011, The Copper Mines of Ontonagon County, Michigan. Copperlady Press. 154 pp.
Butler, B.S., and Burbank, W.S., 1929, The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pp.


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