1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Mactung Tungsten Mine

Prospect in Canada with commodity Tungsten
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10230736
MAS/MILS ID 1220600006
Record type Site
Current site name Mactung Tungsten Mine
Alternate or previous names Mactung

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -130.16888, 63.28323 (WGS84)
Elevation 1800
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country
Canada

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Calcite Unknown
Chlorite Unknown
Dolomite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Quartz Unknown
Scheelite Unknown
Tourmaline Unknown

Nearby scientific data

Ore Body (1) -130.16888, 63.28323
ListMap

Economic information

Ore body information

  • Area 2000HA
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 STOCKWORK
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 OTHER
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control CONTACT ZONE
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Total Surface Area (HA) 2000
    Date of Last Modification 830812

Comments on the geologic information

  • THERE ARE TWO ORE ZONES. THE LOWER ORE ZONE IS UNIT 2B, 9.5 METERS THICK. THE UPPER ZONE CONSISTS OF THREE UNITS, 3D--18 METERS THICK, 3E--24 METERS THICK, AND 3F--27 METERS THICK.
  • THE GRIT UNIT CORRELATES WITH NON-ORE UNIT 1 AT THE MINE SITE. UNITS 3D, 3E, AND 3F CORRELATE WITH THE ROAD RIVER FORMATION.

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1962
Mining method Open Stope - Room and Pillar
Milling method Gravity

Mining district

District name Selwyn Mountains

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Owner
    Owner Canada Tungsten Corp (56% Amax)
    Interest 100
    Home office Canada
    Year 1992

Comments on the production information

  • PRODUCT A IS A GRAVITY CONCENTRATE ACCOUNTING FOR 57% OF THE TUNGSTEN IN THE MILL FEED. PRODUCT B IS A GRAVITY CONCENTRATE ACCOUNTING FOR 3% OF THE MILL FEED. PRODUCT C IS A FLOTATION CONCENTRATE ACCOUNTING FOR 25% OF THE MILL FEED.

Reserves and resources

  • Type In-situ
    Estimate year 1973
    Indicated 27200000mt ore
    Demonstrated 27200000mt ore
    Total resources 27200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.9 wt-pct Tungsten Major 1973
  • Type In-situ
    Estimate year 1991
    Measured 6100000mt ore
    Demonstrated 6100000mt ore
    Total resources 6100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 1.16 wt-pct Tungsten Major 1991
  • Type In-situ
    Estimate year 1991
    Measured 17200000mt ore
    Demonstrated 17200000mt ore
    Total resources 17200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.78 wt-pct Tungsten Major 1991
  • Type In-situ
    Estimate year 1991
    Demonstrated 63000000mt ore
    Total resources 63000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 1.16 wt-pct Tungsten Major 1991

Comments on the reserve resource information

  • PUBLIC GRADE/RESERVE INFORMATION FROM THE ECONOMICS OF TUNGSTEN 1990, SIXTH EDITION. ROSKILL INFORMATION SERVICES LTD.

Workings at the site

  • Type of workings Underground
    Overall depth 610M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method ROOM AND PILLAR 10-34
    Percent Recovery 85
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 1
    1st Condition of Workings UNKNOWN
    Capacity 1094
    Capacity Units MT ORE/DAY
    Unit Production Cost 16.06
    Units of Production $/MT ORE
    Operating Days per Year 320
    Operating Shifts per Day 2
    Year of Information 1982

Reference information

Bibliographic references

  • Reserve-Resource

    ANNIS, R.C., D.A. CRANSTONE AND M. VALLEE, A SURVEY OF KNOWN

  • Reserve-Resource

    MINERAL DEPOSITS IN CANADA THAT ARE NOT BEING MINED;

  • Reserve-Resource

    ENERGY,MINES AND RESOURCES CANADA, MINERALS, MR 181,1978,

  • Reserve-Resource

    P.77.

  • Reserve-Resource

    CANADA TUNGSTEN MINING CORPORATION LTD. ANNUAL REPORT 1989.

  • Deposit

    AMAX ANNUAL REPORT 1980

  • Deposit

    AMAX 10-K ANNUAL REPORT, 1980

  • Deposit

    CMJ CAPITAL SPENDING REPORT, CMJ, OCT. 1981, P. 57.

  • Deposit

    CUMMINGS, W.W. AND BRUCE, D.E., CANADA TUNGSTEN-CHANGE TO

  • Deposit

    UNDERGROUND MINING AND DESCRIPTION OF MINE-MILL PROCED-

  • Deposit

    URES, CMM BULL., AUG. 1977.

  • Deposit

    HARRIS, F.R., GEOLOGY OF THE MACMILLAN TUNGSTEN DEPOSIT

  • Deposit

    UNPUBLISHED, AMAX OF CANADA, VANCOUVER, 1980.

  • Deposit

    MINING JOURNAL (LONDON), OCT. 2, 1981, P. 258.

  • Deposit

    TUNGSTEN, PROCEEDINGS OF THE FIRST INTERNATIONAL TUNGSTEN

  • Deposit

    SYMPOSIUM, STOCKHOLM, 1979, EDITED BY MINING JOURNAL BOOKS

Reporter information

Type Date Name Affiliation Comment
Reporter 18-APR-1995 Bleiwas, Donald U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site