Campbell-Sherwood Reserve

Prospect in Iron county in Michigan, United States with commodity Iron
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. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10082706
MRDS ID W062056
Record type Site
Current site name Campbell-Sherwood Reserve

Geographic coordinates

Geographic coordinates: -88.52783, 46.09806 (WGS84)

Site location context

Political divisions (FIPS codes)

Iron(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gaastra(quadrangle 1:24,000 scale)

Iron River(quadrangle 1:100,000 scale)

Iron River(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 Michigan Iron

Public Land Survey System information

Meridian Township Range Section Fraction State
043N 034W 26 NW 1/4 Michigan

Comments on the location information

  • 1:250000 QUADRANGLE INFO : GAASTRA, MI, LOCATION OF THE ORE BODY

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore
Goethite 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) Paleoproterozoic

Nearby scientific data

(1) -88.52783, 46.09806

Economic information

Geologic structures

Type of structure Regional
Structure description Major troughs into which Iron fm. has slumped; regional trends are E-W to N

Ore body information

  • General form STRATABOUND

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1849
Production years NONE

Mining district

District name Menominee Iron District

Ownership information

  • Type Owner
    Owner Inland Steel Co.

Comments on the production information

  • LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, HAS PRODUCTION FIGURES FOR INDIVIDUAL MINES AND LEASES.

Comments on development

  • IN 1950, THE PROPERTY WAS BEING HELD IN RESERVE. 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 THINLY 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-1995 Sutphin, D.M. (Cannon, W.F.) U.S. Geological Survey
Updater 01-MAR-1997 Sutphin, D.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.