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West Gogebic Taconite Deposit

Past Producer in Ashland 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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10082894
MRDS ID W062316
Record type Site
Current site name West Gogebic Taconite Deposit
Alternate or previous names Penokee Deposit

Geographic coordinates

Geographic coordinates: -90.65346, 46.29722 (WGS84)

Site location context

Political divisions (FIPS codes)

Ashland(county)

Wisconsin(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mellen(quadrangle 1:24,000 scale)

Ironwood(quadrangle 1:100,000 scale)

Ashland(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Bad-Montreal(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 Ashland

Public Land Survey System information

Meridian Township Range Section Fraction State
044N 002W 18 E2 OF NE OF NE Wisconsin

Comments on the location information

  • THE LAT/LON IS FROM THE USBM CD-ROM AND IS FOR THE ORE BODY.

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore
Chert Gangue

Host and associated rocks

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

Nearby scientific data

(1) -90.65346, 46.29722
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Economic information

Comments on the geologic information

  • IRON ORES IN THE GOGEBIC RANGE OCCUR IN THE MIDDLE PRECAMBRIAN IRONWOOD IRON-FORMATION WHICH IS CORRELATED TO THE BIWABIK FORMATION OF THE MESABI RANGE. THE IRONWOOD FORMATION IS FROM 600 TO 800 FT THICK WITH A SHARP CONTACT WITH THE PALMS FORMATION AND A GRADATIONAL CONTACT WITH THE TYLER FORMATION. THE IRONWOOD IRON-FORMATION DIPS FROM 50 TO 65 DEGREES TO THE NORTH AND IS COMMONLY FROM 1,000 TO 1,500 FT WIDE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1848

Comments on the reserve resource information

  • MARSDEN ESTIMATES THAT THE TOTAL TACONITE RESERVES FOR THE GOBEBIC RANGE ARE 3,711,000,000 TONNES FOR ALL GRADES AND PROBABILITY RATINGS. ROUGHLY 2,780,000,000 TONNES OF CRUDE ORE HAVING 32.66 RECOVERY WEIGHT ARE IN ASHLAND, AND 931,000,000 TONNES OF CRUDE ORE HAVING A 30.4 WEIGHT RECOVERY ARE IN IRON COUNTY.

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES, 1995, SPATIAL DATA EXTRACTED FROM THE MINERALS AVAILABILITY SYSTEM/MINERAL INDUSTRY LOCATION SYSTEM (MAS/MILS): U.S. BUREAU OF MINES SPECIAL PUBLICATION 12-95.

  • Deposit

    MARSDEN, R.W., 1978, IRON ORE RESERVES OF WISCONSIN--A MINERALS AVAILABILITY SYSTEM REPORT, IN GRAVEN, L.K., ED., PRODUCTIVITY IN LAKE SUPERIOR MINING DISTRICT: PROCEEDINGS OF THE 51ST ANNUAL MEETING MINNESOTA SECTION AIME AND 39TH ANNUAL MINING SYMPOSIUM, P. 24.1-24.28.

  • Reserve-Resource

    MARSDEN, 1978.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1996 Sutphin, David M. U.S. Geological Survey
Updater 01-MAR-1997 Sutphin, David M. U.S. Geological Survey
Editor 01-MAY-1997 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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