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Giant Yellowknife Division

Plant in Northwest Territories, Canada with commodities Arsenic, Gold, Silver
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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. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10133335
MAS/MILS ID 1220300009
Record type Site
Current site name Giant Yellowknife Division
Alternate or previous names Giant Yellowknife, Yellowknife, Supercrest, Lolor

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -114.33472, 62.50011 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Northwest Territories

Commodities

Commodity Importance
Arsenic Critical Secondary
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Arsenopyrite Unknown
Epidote Unknown
Pyrite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -114.33472, 62.50011
ListMap

Economic information

Ore body information

  • Strike N20E
    Dip 70W
    Length 70M
    Width 15M
    Area 650HA
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Strike And Dip N20E:70W
    Minimum Depth to Top 0
    Total Surface Area (HA) 650
    Date of Last Modification 930603

Comments on the geologic information

  • LABOR MAINTENANCE SALARIES WERE NOT GIVEN.

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1935
Mining method Filled Stopes
Year of first production 1948
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Merrill-Crowe

Comments on exploration

  • NO SPECIFIC EXPLORATION WAS MENTIONED.

Mining district

District name Slave Lake

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented

Ownership information

  • Type Owner-Operator
    Owner Royal Oak Mines Inc.
    Interest 100
    Home office Canada
    Year 1997

Production statistics

  • Year 1966
    Material Ore
    Ore mined 348570mt
    Description Ore Milled 348570 Metric Ton/Year
  • Year 1969
    Material Ore
    Ore mined 362519mt
    Description Ore Milled 362519 Metric Ton/Year
  • Year 1973
    Material Ore
    Ore mined 353280mt
    Description Ore Milled 353280 Metric Ton/Year
  • Year 1976
    Material Ore
    Ore mined 388379mt
    Description Ore Milled 388379 Metric Ton/Year
  • Year 1979
    Material Ore
    Ore mined 377580mt
    Description Ore Milled 377580 Metric Ton/Year
  • Year 1980
    Material Ore
    Ore mined 206129mt
    Description Ore Milled 206129 Metric Ton/Year
  • Year 1985
    Ore mined 302985mt
    Description 7.80 G Au 302985 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 8g/mt
  • Year 1986
    Ore mined 292781mt
    Description 7.80 G Au 292781 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 8g/mt
  • Year 1988
    Ore mined 329813mt
    Description 7.28 G Au 329813 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 7g/mt
  • Year 1988
    Ore mined 339455mt
    Description 8.07 G Au 339455 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 8g/mt
  • Year 1989
    Ore mined 358152mt
    Description 8.28 G Au 358152 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 8g/mt
  • Year 1990
    Ore mined 347810mt
    Description 9.88 G Au 347810 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 10g/mt

Comments on the production information

  • DESCRIPTION SHOWS MILL FEED GRADES.

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Indicated 2170000mt ore
    Demonstrated 2170000mt ore
    Total resources 2170000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 9.39 g/mt Gold Major 1980
  • Type In-situ
    Estimate year 1991
    Demonstrated 2762000mt ore
    Total resources 2762000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 9.84 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1991
    Demonstrated 231000mt ore
    Total resources 231000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 13.96 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1991
    Demonstrated 2994000mt ore
    Total resources 2994000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10.16 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1992
    Demonstrated 2122000mt ore
    Total resources 2122000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10.66 g/mt Gold Major 1992
  • Type In-situ
    Estimate year 1997
    Demonstrated 2237118mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 11.486 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1997
    Demonstrated 1885129mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 11.589 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1992
    Demonstrated 2353000mt ore
    Total resources 2353000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10.98 g/mt Gold Major 1992

Comments on the reserve resource information

  • DATA FOR 1982 AND 86 PROPERTY EVALUATIONS AND AVAIL. STUDIES. RESOURCE DATA FOR ADIT. RESOURCES DATA FOR 1993 PROPERTY EVALUATION.
  • INCLUDES NICHOLAS LAKE, DILUTION AND MINE LOSSES, 12/31/96:

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
    Avg. Overburden Thickness 40
    Primary Material Cover SAND, GRAVEL
    Hardness of Ore SAND, GRAVEL
    Capacity 1346
    Capacity Units MT ORE/DAY
    Unit Production Cost 7.63
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 3
    Year of Information 1982
  • Type of workings Underground
    Overall depth 640M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN STOPE
    Percent Recovery 96
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics UNKNOWN
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 3
    1st Condition of Workings OPEN
    Capacity 1346
    Capacity Units MT ORE/DAY
    Unit Production Cost 40.89
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • THE DILUTION OF THE ORE IS 10%. THE SHAFT DEPTH IS THAT OF THE DEEPEST SHAFT - SHAFT C. THE DEPTHS FOR A AND B ARE 242 AND 238, RESPECTIVELY.
  • ALL AS CONCENTRATE IS SENT TO THE ASARCO CUSTOM SMELTER, IN MONTANA, FOR REFINING - NO SPECIFIC LOCATION WAS GIVEN. THE DORE BULLION IS SENT TO THE ROYAL CANADIAN MINT, FOR REFINING.
  • THE CAPITAL AND OPERATING COSTS OF THE MINE WERE CALCULATED FOR ONE COMBINED OPERATION (SURF. AND UG.). THESE COSTS WERE FURTHER SEPARATED FOR THIS REPORT, ON THE BASIS OF A WEIGHTED FIGURE DETERMINED FROM THE PERCENT OF TOTAL ORE MINED FROM SURFACE AND UNDERGROUND OPERATIONS. THE SURFACE MINING CONTRIBUTED 17% TO TOTAL PRODUCTION, WHILE THE UNDERGROUND OPERATIONS ACCOUNTED FOR 83%.

Reference information

Bibliographic references

  • Reserve-Resource

    ANNUAL REPORT. GIANT YELLOWKNIFE MINES, LTD., 1980.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1991-92, P167.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1992-93, P316.

  • Reserve-Resource

    REA GOLD CORPORATION, 1995 FORM 10-K REPORT, P32.

  • Reserve-Resource

    REA GOLD CORPORATION, 1996 FORM 10-K REPORT, P30.

  • Deposit

    ACRES DAVY MCKEE LTD. GOLD MINING IN CANADA.

  • Deposit

    AMES RESEARCH. STOCK ANALYSIS REPORT, 1981.

  • Deposit

    GIANT YELLOWKNIFE MINES LTD. ANNUAL REPORTS, 1966-1980.

  • Deposit

    CANADIAN MINES HANDBOOK (1980-82). PP. 144-146.

  • Deposit

    CANADIAN MINING JOURNAL. REFERENCE MANUAL AND BUYERS

  • Deposit

    GUIDE. 1981.

  • Deposit

    DOUGLAS, R.J.W., EDITOR. GEOLOGY AND ECONOMIC MINERALS

  • Deposit

    OF CANADA: ECONOMIC GEOLOGY REPORT NO. 1. GEOLOGICAL SURVEY

  • Deposit

    OF CANADA, 1970, 830 PP.

  • Deposit

    EMERY, D.J., PRESIDENT AND MANAGING DIRECTOR OF GIANT

  • Deposit

    YELLOWKNIFE. REMARKS TO THE ANNUAL MEETING OF SHAREHOLDERS

  • Deposit

    OF GIANT YELLOWKNIFE. TOTONTO, APRIL 14, 1981. TRANSCRIPT

  • Deposit

    HOUSED IN NORTHERN MINER LIBRARY, TORONTO, CANADA.

  • Deposit

    FINANCIAL POST CORPORATION. REPORT ON GIANT YELLOWKNIFE

  • Deposit

    MINES, LTD. MACLEAN HUNTER, 1981.

  • Deposit

    FIRST MARATHON SECURITIES. STOCK ANALYSIS REPORT, 1980.

  • Deposit

    GIANT YELLOWKNIFE MINES, LTD. NINE MONTH INTERIM REPORT.

  • Deposit

    SEPTEMBER 30, 1981.

  • Deposit

    HENDERSON, J.F. AND BROWN, I.C. GEOLOGY AND STRUCTURE OF

  • Deposit

    THE YELLOWKNIFE GREENSTONE BELT, DISTRICT OF MACKENZIE.

  • Deposit

    GEOLOGICAL SURVEY CANADA BULLETIN 141, 1966, 87 PP.

  • Deposit

    MCQUISTON, F.W. AND SHOEMAKER, R.S. GOLD AND SILVER

  • Deposit

    CYANIDATION PLANT PRACTICE MONOGRAPH. AIME, 1975.

  • Deposit

    MINING JOURNAL, APRIL 18, 1980.

  • Deposit

    MORE, M.A. AND PAWSON, H.E. GIANT YELLOWKNIFE MINES

  • Deposit

    LIMITED- MILLING PRACTICE IN CANADA. CIM SPECIAL VOLUME 16,

  • Deposit

    1978, PP. 63-64.

  • Deposit

    NORTHERN MINER, JULY 20, 1978.

  • Deposit

    NORTHERN MINER, MARCH 15, 1979.

  • Deposit

    NORTHERN MINER, OCTOBER 18, 1979.

  • Deposit

    NORTHERN MINER, MARCH 6, 1980.

  • Deposit

    DAWSON, H.E. GIANTS MILLING OPERATION. PROCEEDINGS OF

  • Deposit

    THE FIFTH ANNUAL MEETING OF THE CANADIAN MINERAL PROCESSORS,

  • Deposit

    OTTAWA, 1973, PP. 317-332.

  • Deposit

    965, PP. 529-575.HANGE COMMISSION. FORM 10-K, GIANT

  • Deposit

    YELLOWKNIFE MINES LTD., 1980.

  • Deposit

    STOCKWELL, C.H., EDITOR. GEOLOGY AND ECONOMIC MINERALS

  • Deposit

    OF CANADA. GEOLOGICAL SURVEY OF CANADA, 1957, PP. 63-65.

  • Deposit

    CANADIAN MINES HANDBOOK, 1996-97, PP. 374, 471.

  • Deposit

    REA GOLD CORPORATION ANNUAL REPORT'S 1995, 1996.

General comments

Subject category Comment text
Deposit THE EXPLORED OREBODIES AT THE GIANT MINE ARE RELATIVELY SHALLOW, AND CLOSE TO THE SURFACE.

Reporter information

Type Date Name Affiliation Comment
Reporter 16-JUL-97 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

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

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