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Carp Lake Mine, Porcupine Mts, Ontonagon Co., Michigan, USAi
Regional Level Types
Carp Lake MineMine
Porcupine MtsMountain Range
Ontonagon Co.County
MichiganState
USACountry

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Key
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Latitude & Longitude (WGS84):
46° 48' 53'' North , 89° 42' 58'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
White Pine474 (2017)12.1km
Ontonagon1,324 (2017)31.2km
Wakefield1,725 (2017)41.4km
Bessemer1,770 (2017)45.1km
Marenisco254 (2017)48.7km


Commodities (Major) - Copper
Deposit Type: Secondary Enrichment
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Copper Harbor Formation
Host Rock: Sandstone

The Carp Lake Mining Company was organized in 1858 with work on the mine beginning in 1859. In 1860, two shafts were sunk on the property and by 1862, an adit 700 feet long was driven. The copper was discovered as finely disseminated particles in sandstone (likely the Freda Sandstone). The mine reopened in 1864 and sunk an air shaft to ventilate the mine. Work stopped in 1867 and the mine was worked on tribute until 1894 when the property was sold and renamed the Carp Lake Copper Company. The mine was sold again in 1901 to the Porcupine Copper Company. In 1906, a three ton mass was discovered but very little copper was recovered beyond this. By 1918 the original mine was abandoned but caretakers remained throughout the 1920’s. During its life span, the Carp Lake Mine produced approximately 34,000 pounds of copper. In 1927, a new group of miners began working on a tunnel into the base of the bluff on the original Carp Lake property; this is known as the Mead Mine. The tunnel was worked to over 1,000 feet into the bluff. Some copper and silver was removed from the tunnel, but by 1929 the Mead closed for good. It is said that copper can be found on the rock piles, but since this is State Park property, no collecting is allowed!

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


5 valid minerals.

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:

Calcite
Formula: CaCO3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcocite
Formula: Cu2S
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Chlorite Group'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Copper
Formula: Cu
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'K Feldspar'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Silver
Formula: Ag
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'K Feldspar'-

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
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
'K Feldspar'-

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O CalciteCaCO3
O QuartzSiO2
SiSilicon
Si QuartzSiO2
SSulfur
S ChalcociteCu2S
CaCalcium
Ca CalciteCaCO3
CuCopper
Cu ChalcociteCu2S
Cu CopperCu
AgSilver
Ag SilverAg

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

Mesoproterozoic
1000 - 1600 Ma



ID: 2735666
Copper Harbor Conglomerate; Volcanic member

Age: Mesoproterozoic (1000 - 1600 Ma)

Stratigraphic Name: Copper Harbor Conglomerate

Description: Basaltic to andesitic volcanic flows interbedded within the conglomerate and sandstone

Comments: Local usage calls these interbedded volcanic (andesitic) flows "Lake shore traps". A U-Pb zircon age for this unit in Michigan yields a date of 1087.2 +/- 1.6 Ma (Davis, D.W., and Paces, J.B., 1990, Time resolution of geologic events on the Keweenaw Peninsula and implications for development of the Midcontinent rift system: Earth and Planetary Science Letters, v. 97, p. 54-64.) 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:{basaltic andesite}

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]

Stenian
1000 - 1200 Ma



ID: 3184900
Mesoproterozoic sedimentary rocks

Age: Stenian (1000 - 1200 Ma)

Comments: Mid-Continent Rift

Lithology: Sandstone-conglomerate

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)
COPPER RANGE CO., UNPUBLISHED, 1968, BEDROCK GEOLOGY MAP OF THE WHITE PINE (SW 1/4) QUADRANGLE, ONTONAGON COUNTY, MICHIGAN. GEOLOGY MAPPED AND COMPILED BY COPPER RANGE EXPLORATION CO., INC., AND BY H. HUBBARD (U.S.G.S.)
Hamka, T., 2011, The Copper Mines of Ontonagon County, Michigan. Copperlady Press. 154 pp.
DeGood, L., 2011, Michigan Copper Mining Stocks and Bonds. 401 pp.
Butler, B.S., and Burbank, W.S., 1929, The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pp.
Malloy, L.J., 2006, Copper Country Road Trips. Great Lakes GeoScience, 97 pp.


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