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Commonwealth Group

Past Producer in Florence county in Wisconsin, United States with commodity Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Economic information about the deposit and operations
  15. Mining district
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10082676
MRDS ID W062025
Record type Site
Current site name Commonwealth Group
Alternate or previous names Badger, Buckeye, Commonwealth, Davidson
Related records 10229763

Geographic coordinates

Geographic coordinates: -88.23004, 45.8975 (WGS84)
Location accuracy 100(meters)
Relative position LOCATED ABOUT 1 MI S OF COMMONWEALTH, WI. PROPERTY COVERS ABOUT 9/16 SQ MI., Acc Lat/Lon Is For A Trench (Taken From Usbm Cd-Rom 9/95)., Acc Lat/Lon Is For A Trench (Taken From Usbm Cd-Rom 9/95).

Site location context

Political divisions (FIPS codes)

Florence(county)

Wisconsin(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Florence East(quadrangle 1:24,000 scale)

Iron Mountain(quadrangle 1:100,000 scale)

Iron Mountain(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Brule(hydrologic unit)

Northwestern Lake Michigan(hydrologic accounting unit)

Northwestern Lake Michigan(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Wisconsin Florence

Public Land Survey System information

Meridian Township Range Section Fraction State
40N}40N 18W}18W 33}34 S2 OF SE4 (33); SE4-SE4 OF SW4 OF NW4-SE4 (34) Wisconsin

Comments on the location information

  • BADGER--SE1/4-SE1/4 SEC 34; BUCKEYE--S1/2-SE1/4 SEC 33; COMMONWEALTH--SW1/4 SEC 34; DAVIDSON--NW1/4-SE1/4 SEC 34.

Commodities

Commodity Importance
Iron Primary

Comments on the commodity information

  • ORE WAS HIGH PHOSPHORUS. BUCKEYE GRADE WAS SHIPPED IN 1916. THE ORE WAS WORKED BY SUB-LEVEL STOPING AND CAVING.

Materials information

Materials Type of material
Goethite Ore
Hematite Ore
Magnetite Ore
Quartz Gangue

Alteration

  • (Local) Leaching Of Silica Or Replacement By Iron Oxides Or A Combination Of These Processes.

Mineral occurrence model information

Model code 241
USGS model code 34a
Deposit model name Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Iron Formation
    Rock unit name Vulcan Iron Formation
    Rock description Vulcan Iron Formation
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -88.23004, 45.8975
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Major Troughs Into Which Iron Fm. Has Slumped; Regional Trends Are E-W To Ne-Sw.

Ore body information

  • General form STRATABOUND
    Dip 50-55 N

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1880
Year of last production 1916
Production years 1880-1916 EXCEPT FOR 1907-1908 AND 1911.

Mining district

District name Menominee Iron District

Ownership information

  • Type Operator
    Owner Commonwealth Iron Co. (Formerly)

Comments on the production information

  • MATILDA SHIPMENTS WERE MADE FROM AN OLD STOCKPILE ON THE COMMONWEALTH PROPERTY. LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, HAS PRODUCTION FIGURES FOR INDIVIDUAL MINES AND LEASES. IRON ORE WAS SHIPPED THROUGH THE PORT AT ESCANABA, MI.

Comments on the reserve resource information

  • THIS IS THE ONLY KNOWN RESERVE; IT IS ON THE BUCKEYE PROPERTY.

Workings at the site

  • Type of workings Underground
    Area 145.04HA
    Overall depth 251.46M

Comments on development

  • ECON.COM: IRON ORE WAS DISCOVERED IN DICKINSON COUNTY IN 1849; THE FIRST SHIPMENTS WERE MADE IN 1877, AND PRODUCTION CEASED IN 1959. IRON ORE WAS DISCOVERED IN IRON COUNTY IN 1851; THE FIRST SHIPMENTS WERE MADE IN 1882, AND PRODUCTION WAS CONTINUING IN 1966.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE GEOLOGY CONSISTS OF PRECAMBRIAN W CRYSTALLINE ROCKS OVERLAIN BY PRECAMBRIAN X SEDIMENTARY ROCKS. DURING PRECAMBRIAN X TIME, PRECAMBRIAN W ROCKS BLOCK FAULTED AND DIFFERENTIALLY RAISED; LOWERED; FORMING TROUGHS. PRECAMBRIAN X SEDIMENTS SLUMPED INTO THE TROUGHS. AT ABOUT THE SAME TIME, THE ENTIRE AREA WAS REGIONALLY THERMAL METAMORPHOSED. THIS AREA OF THE MENOMINEE DISTRICT IS IN THE CHLORITE AND BIOTITE ISOGRADS. ALTHOUGH BOTH THE VULCAN IRON FM. AND THE RIVERTON IRON FM. ARE PRECAMBRIAN X IN AGE, THE VULCAN IRON FM. IS THE OLDER. THE VULCAN IRON FM. IS PART OF THE MENOMINEE GROUP.
Deposit VULCAN IRON FORMATION CONSISTS OF THINNLY BEDDED LAYERS OF MAGNETITE, MARTITE, AND SPECULARITE, ALTERNATING WITH QUARTZ-RICH LAYERS; MINOR LOW-IRON SILICATE MINERALS ARE PRESENT (DUTTON AND ZIMMER, 1968). THE FORMATION RANGES FROM 300-800 FT THICK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-95 Sutphin, David M. (Cannon, W. F.) U.S. Geological Survey
Updater 01-MAR-97 Sutphin, David M. U.S. Geological Survey
Editor 01-MAY-97 Mason Jr., G.T. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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