Kingston Conglomerate

Past Producer in Keweenaw 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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Production statistics
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10082612
MRDS ID W060047
Record type Site
Current site name Kingston Conglomerate
Related records 10219521

Geographic coordinates

Geographic coordinates: -88.39116, 47.29083 (WGS84)

Site location context

Political divisions (FIPS codes)

Keweenaw(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ahmeek(quadrangle 1:24,000 scale)

Hancock(quadrangle 1:100,000 scale)

Hancock C(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 Keweenaw

Public Land Survey System information

Meridian Township Range Section Fraction State
Michigan 057N 032W 32 SW OF SW Michigan

Comments on the location information

  • KINGSTON ORE WAS FOUND BY DIAMOND DRILL HOLE AHMEEK #35 - ORE BODY EXTENDS FROM HOUGHTON-KEWEENAW COUNTY LINE NE INTO KEWEENAW COUNTY NEAR VILLAGE OF ALLOUEZ

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Copper Ore

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 > Tholeiite
    Rock unit name Portage Lake Volcanics
    Rock description Portage Lake Volcanics
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Kingston Conglomerate
    Rock description Kingston Conglomerate
    Stratigraphic age (youngest) Mesoproterozoic
    Chronological age 1095
    Dating method U-Pb (zircon)
    Type of media Zircon

Nearby scientific data

(1) -88.39116, 47.29083

Economic information

Ore body information

  • General form CONGLOMERATE LODE

Comments on the geologic information

  • CAN BE TRACED FOR AT LEAST 60 MILES, RANGES FROM 1-100+ FEET IN THICKNESS. NEAR ORE BODY THICKNESS RANGES FROM 7-112 FEET WITH AVERAGE OF 40 FEET.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1962
Year of last production 1968

Mining district

District name Keweenaw Copper

Production statistics

  • Year 1968
    Period 1962-1968
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major recovered Cu Copper Copper 9091mt

Comments on the production information

  • Ore graded 0.96 % Cu

Reference information

Bibliographic references

  • Deposit

    WHITE, W.S., 1968, THE NATIVE COPPER DEPOSITS OF NORTHERN MICHIGAN: IN J.D. RIDGE, (EDITOR) ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATON-SALES VOL.): AM. INSTIT. MIN. METALL. PETROL. ENG,. VOL. 1, P. 303-325.

  • Deposit

    WEEGE, R.J., AND POLLACK, J.P., 1971, RECENT DEVELOPMENTS IN THE NATIVE COPPER DISTRICT OF MICHIGAN: IN W.S. WHITE, (EDITOR) GUIDEBOOK FOR FIELD CONFERENCE, MICHIGAN COPPER DISTRICT, SEPT. 30-OCT. 2, 1971, SOC. ECON. GEOL., PP. 19-43.

  • Deposit

    WHITE, W.S., CORNWALL, H.R., AND SWANSON, R.W., 1953, BEDROCK GEOLOGY OF THE AHMEEK QUADRANGLE, MICHIGAN: USGS MAP GQ-27, SCALE 1:24000

  • Production

    WEEGE AND POLLACK, 1971

General comments

Subject category Comment text
Deposit COPPER MOSTLY OCCURS RESTRICTED ZONES WITHIN 40-FOOT THICK BED: FOOTWALL ZONE IS MOST CONTINUOUSLY MINERALIZED (CONTAINS 43 PERCENT OF THE COPPER); INTERMEDIATE ZONE IS RICHEST BUT HAS SPOTTY DISTRIBUTION (CONTAINS ONLY 10 PERCENT OF THE COPPER); HANGING WALL ZONE IS VERY DISCONTINUOUS (CONTAINS 33 PERCENT OF THE COPPER)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1995 Nicholson, Suzanne 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
Reporter 26-MAR-2004 Woodruff, Laurel G. U.S. Geological Survey Work done in Filemaker

Beyond USGS

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