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Mactung Deposit

Prospect in Yukon Territory*, Canada with commodities Tungsten, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10021626
MRDS ID DE00304
Record type Site
Current site name Mactung Deposit

Geographic coordinates

Geographic coordinates: -130.15496, 63.28465 (WGS84)
Relative position OREBODY: CENTRE OF SURFACE TRACE OF ORE ZONES.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Yukon Territory*
Canada Northwest Territories

Comments on the location information

  • OREBODY ON BOUNDARY BETWEEN YUKON AND NORTHWEST TERRITORIES.

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Primary

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Lower Carbonate;Upper Carbonate
    Rock description Lower Carbonate;Upper Carbonate

Nearby scientific data

(1) -130.15496, 63.28465
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Monzogranite Contact Aureole

Comments on the geologic information

  • MAJOR POST-ORE GEOLOGIC EVENT: MINOR FAULTING. PRINCIPAL MINERAL ASSEMBLAGES: SCLT + PYTT + CLCP + GRNT + PRXN + CLCT + QRTZ + AMPB + BOTT + CLRT. THE OREBODY CONSISTS OF A LOWER ORE ZONE AND AN UPPER ORE ZONE, THE LATTER OF WHICH CONSISTS OF THREE SEPARATE SCHEELITE-BEARING SKARN HORIZONS.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1971

Mining district

District name Mayo (Yukon) And Mackenzie (Nwt)

Ownership information

  • Type Owner
    Owner Amax Northwest Mining Co. Ltd.
    First year 1985

Comments on the reserve resource information

  • ITEMS 1 & 2: UNITED STATES, SECURITIES AND EXCHANGE COMMISSION, 1986. ITEM 3: CONTAINS 12,300,000 MT (DILUTED) GRADING 1.02% WO3 THAT COULD BE MINED BY UNDERGROUND METHODS.

Comments on the workings information

  • AREA: 3 SQ. KM, SURFACE TRACE OF ORE ZONES.

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS.: TRANSPORT/ACCESS, ENERGY. ASSESSMENT: NOMINAL 450-900 MT/DAY OPERATION, ORIGINALLY CONSIDERED FOR LATE 1986 (DICK AND HODGSON, 1982), POSTPONED DUE TO LOW PRICES FOR TUNGSTEN.

Reference information

Bibliographic references

  • Deposit

    HARRIS, F.R., 1977, GEOLOGY OF THE MACMILLAN TUNGSTEN DEPOSIT, IN MINERAL INDUSTRY REPORT, 1976, YUKON TERRITORY; DEPARTMENT OF INDIAN AND NORTHERN AFFAIRS, EGS 1977-1, P. 20-32.

  • Deposit

    MULLIGAN, ROBERT, 1984, GEOLOGY OF CANADIAN TUNGSTEN OCCURRENCES, GEOLOGICAL SURVEY OF CANADA, ECONOMIC GEOLOGY REPORT 32, P. 63-66.

  • Deposit

    ATKINSON, D. AND BAKER, D.J., 1986, RECENT DEVELOPMENTS IN THE GEOLOGICAL PICTURE OF MACTUNG, IN MORIN, J.A., ED., MINERAL DEPOSITS OF NORTHERN CORDILLERA, THE CANADIAN INSTITUTE OF MINING AND METALLURGY, SPECIAL VOLUME 37, P. 234-244.

  • Deposit

    AMAX'S MACTUNG PROPERTY, NORTHWEST PROSPECTORS, MINERS AND DEVELOPERS BULLETIN, FALL 1982, P. 4-5, PUBLISHED BY K.W. PUBLISHING LTD., VANCOUVER, B.C.

  • Deposit

    DICK, L.A., AND HODGSON, C.J., 1982, THE MACTUNG W-CU (ZN) CONTACT METASOMATIC AND RELATED DEPOSITS OF THE NORTHEASTERN CANADIAN CORDILLERA; ECONOMIC GEOLOGY, VOL. 77, P. 845-867.

  • Deposit

    UNITED STATES, SECURITIES AND EXCHANGE COMMISSION, 1986, AMAX INC., FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 1985. P. 8.

General comments

Subject category Comment text
Deposit MINING METHOD: POTENTIAL OPEN PIT AND UNDERGROUND.
Deposit Discovery Year: 1971, ORE ZONES OUTLINED BY DRILLING, (SHOWINGS KNOWN IN 1962)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1985 Johnston, Alfred G. Energy Mines and Resources of Canada

Beyond USGS

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

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