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  3. Mineral Resource Data System (MRDS)

Fon Du Lac

Unknown in Douglas county in Wisconsin, United States with commodity Copper
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10082590
MRDS ID W060018
Record type Site
Current site name Fon Du Lac

Geographic coordinates

Geographic coordinates: -92.02046, 46.57055 (WGS84)
Location accuracy 100(meters)
Relative position Acc Located On 1:24000 Map.

Site location context

Political divisions (FIPS codes)

Douglas(county)

Wisconsin(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sunnyside(quadrangle 1:24,000 scale)

Duluth(quadrangle 1:100,000 scale)

Duluth(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beartrap-Nemadji(hydrologic unit)

Southwestern Lake Superior(hydrologic accounting unit)

Western Lake Superior(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Wisconsin Douglas

Public Land Survey System information

Meridian Township Range Section Fraction State
47N 13W 8 NE4 Wisconsin

Commodities

Commodity Importance
Copper Primary

Comments on the commodity information

  • SMALL NUGGETS OF COPPER WEIGHING SEVERAL OUNCES WERE FOUND AT THE LITTLE MAUD VEIN.

Materials information

Materials Type of material
Copper Ore
Malachite Ore
Calcite Gangue
Epidote Gangue
Prehnite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Nearby scientific data

(1) -92.02046, 46.57055
ListMap

Economic information

Ore body information

  • Name LITTLE MAUD VEIN

Comments on the geologic information

  • THE COUNTRY ROCK AT THE STEWART SHAFT IS A MEDIUM-GRAINED REDDISH DIABASE, AND THE ROCK OF THE VEIN-LIKE MASS IS COARSER GRAINED DIABASIC ROCK WITH A HIGH PERCENTAGE OF EPIDOTE. THE VEIN-LIKE MASS IS 10 TO 18 INCHES THICK AND CAN BE TRACED FOR ABOUT 100 PACES TO THE EAST AND 200 PACES WEST OF THE SHAFT. IN PLACES IN THE MASS, COPPER IS QUITE ABUNDANT.

Economic information about the deposit and operations

Commodity type Metallic
Deposit size Small
Significant No

Workings at the site

  • Type of workings Surface/Underground
    Name of workings PARKER SHAFT
    Overall depth 24.38M
  • Type of workings Surface/Underground
    Name of workings STEWART SHAFT
    Overall depth 19.81M

Comments on the workings information

  • TWO PITS WERE SUNK CALLED THE STEWART AND PARKER SHAFTS. THE PARKER SHAFT SLOPES 22 TO 38 SOUTH. A TRENCH CUTS THE AMYGDALOID AT THE LITTLE MAUD VEIN.

Comments on development

  • IN 1899 A CONSIDERABLE AMOUNT OF STRIPPING WAS DONE TO EXPOSE COPPER-BEARING AMYGDALOIDS.

Reference information

Bibliographic references

  • Deposit

    GRANT, U.S., 1901, PRELIMINARY REPORT ON THE COPPER-BEARING ROCKS OF DOUGLAS COUNTY, WISCONSIN, WISC. GEOLOGICAL AND NATURAL HISTORY SURVEY, BULLETIN NO. 6., ECON. SERIES 3, 83 PP WITH MAPS

General comments

Subject category Comment text
Deposit DESCRIPTION FROM GRANT, 1901, PRELIMINARY REPORT ON THE COPPER-BEARING ROCKS OF DOUGLAS COUNTY, WISCONSIN, WISC. GEOLOGICAL AND NATURAL HISTORY SURVEY, BULLETIN NO. 6., ECON. SERIES 3, 83 PP WITH MAPS
Deposit STEWART SHAFT GOES DOWN ALONG A VEIN-LIKE MASS OF ROCK WHICH DIPS 53 S.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-95 Nicholson, S.W. U.S. Geological Survey
Updater 01-JUL-96 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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