Shawmut Mine

Past Producer in Houghton county in Michigan, United States with commodity Copper
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10080403
MRDS ID W031533
Record type Site
Current site name Shawmut Mine
Alternate or previous names Everett Mine

Geographic coordinates

Geographic coordinates: -88.852, 46.91861 (WGS84)

Site location context

Political divisions (FIPS codes)

Houghton(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Donken(quadrangle 1:24,000 scale)

L'Anse(quadrangle 1:100,000 scale)

Iron River(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Keweenaw Peninsula(hydrologic unit)

Southcentral Lake Superior(hydrologic accounting unit)

Southern Lake Superior(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Michigan Houghton

Public Land Survey System information

Meridian Township Range Section Fraction State
052N 036W 10 Michigan

Comments on the location information

  • CENTERED IN THE GROUP OF NINE SHAFTS IN SECTION 10.; PREVIOUS QUAD DESIGNATION = WINONA (NE 1/4) 1:24000

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Copper Ore
Quartz Gangue
Calcite Gangue
Epidote Gangue
Pumpellyite-(Mg) Gangue
Chlorite Gangue
Feldspar Gangue

Alteration

  • (Local) Removal of hematite, copper replacement, quartz-pumpellyite bleaching

Mineral occurrence model information

Model code 96
USGS model code Unassigned
Deposit model name Native Cu
Mark3 model number 99

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name Portage Lake Volcanics
    Rock description Portage Lake Volcanics
    Stratigraphic age (youngest) Stenian
    Chronological age 1095

Nearby scientific data

(1) -88.852, 46.91861

Economic information

Controls for ore emplacement

  • Concentrated in shoots(stratigraphic in amygdaloid or fissure related).

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Keweenaw Copper

Land status

Ownership category Private

Comments on the production information

  • NO PRODUCTION FIGURES AVAILABLE, ASSUMING SMALL SIZE

Comments on the reserve resource information

  • NO RESERVES COMMERCIALLY PRODUCIBLE.

Reference information

Bibliographic references

  • Deposit

    COPPER RANGE CO., UNPUBLISHED, 19688 BEDROCK GEOLOGY MAP OF THE WINNER (NE 1/4) QUADRANGLE, HOUGHTON COUNTY, MICHIGAN. GEOLOGY MAPPED AND COMPILED BY COPPER RANGE EXPLORATION CO., INC., AND BY H. HUBBARD (U.S.G.S.)

  • Deposit

    BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: U.S. GEOLOGICAL SURVEY PROF. PAPER 144, 238P.

  • Deposit

    WILBAND, J.T., 1978, THE COPPER RESOURCES OF NORTHERN MICHIGAN; PREPARED FOR THE U.S. BUREAU OF MINES, CONTRACT NO. J0366067, 66P.

General comments

Subject category Comment text
Deposit NO DESCRIPTION INFORMATION AVAILABLE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1980 Yeager, Keith (Cannon, W.) Michigan Geological Survey Division
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.

External references