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Millenbach

Past Producer in Quebec, Canada with commodities Copper, Gold, Lead, Silver, Zinc
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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. Mineral rights holdings
  11. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10255302
MAS/MILS ID 1220500012
Record type Site
Current site name Millenbach
Alternate or previous names Lake Dufault Mines, Limited, Norbec Mine Mined Out, Millenbach Mine, Lake Default Div., Corbet Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -79.0816, 48.29999 (WGS84)
Elevation 340
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Quebec

Commodities

Commodity Importance
Copper Primary
Gold Primary
Lead Secondary
Silver Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Amphibole Unknown
Arsenopyrite Unknown
Biotite Unknown
Calcite Unknown
Chalcopyrite Unknown
Chlorite Unknown
Electrum Unknown
Feldspar Unknown
Galena Unknown
Gold Unknown
Magnetite Unknown
Mica Unknown
Pyrite Unknown
Pyrrhotite Unknown
Quartz Unknown
Silver Unknown
Sphalerite Unknown

Nearby scientific data

Main Entrance (1) -79.0816, 48.29999
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 30S
    Length 427M
    Width 107M
    Area 100HA
    Depth to top 686M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 MASSIVE
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 LENTICULAR
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin MAGMATIC DIFFER
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control IGNEOUS
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PROPYLITIC
    Type of Wallrock Alter. #2 POTASSIC
    Type of Wallrock Alter. #3 SILICIFICATION
    Strike And Dip N45E:30S
    Minimum Depth to Top 610
    Total Surface Area (HA) 100
    Date of Last Modification 810428

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Year of first production 1972
Milling method Flotation

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Minerals Only
Type of mineral rights Federal Lease

Ownership information

  • Type Owner-Operator
    Owner Minnova Inc.
    Interest 100
    Home office Canada

Production statistics

  • Year 1989
    Description 7.22 % Cu, 25.31 Gm Ag, 1.88 Gm Au 163000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 2g/mt
    Minor Ore Silver Silver 25g/mt
    Major Ore Copper Copper 7wt-pct
  • Year 1990
    Description 8.24% Cu, .9% Zn, 29.0 G Ag, 2.44 G Au 425000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 2g/mt
    Minor Ore Silver Silver 29g/mt
    Minor Ore Zinc Zinc 1wt-pct
    Major Ore Copper Copper 8wt-pct
  • Year 1991
    Description 7.45% Cu, .5% Zn, 28.3 G Ag, 2.73 G Au 440000
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 3g/mt
    Minor Ore Zinc Zinc 1wt-pct
    Minor Ore Silver Silver 28g/mt
    Major Ore Copper Copper 7wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Indicated 2100000mt ore
    Demonstrated 2100000mt ore
    Total resources 2100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 7 wt-pct Copper Major 1986
    Zinc Zn 0.5 wt-pct Zinc Minor 1986
    Silver Ag 24 g/mt Silver Minor 1986
    Gold Au 1.7 g/mt Gold Major 1986
    Lead Pb 1.1 wt-pct Lead Minor 1986
  • Type In-situ
    Estimate year 1990
    Indicated 992000mt ore
    Demonstrated 992000mt ore
    Total resources 992000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 6.7 wt-pct Copper Major 1990
    Zinc Zn 1 wt-pct Zinc Minor 1990
    Silver Ag 23.8 g/mt Silver Minor 1990
    Gold Au 1.2 g/mt Gold Major 1990
  • Type In-situ
    Estimate year 1991
    Demonstrated 546000mt ore
    Total resources 546000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 6.3 wt-pct Copper Major 1991
    Zinc Zn 1.4 wt-pct Zinc Minor 1991
    Silver Ag 20.4 g/mt Silver Minor 1991
    Gold Au 1 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1990
    Indicated 992000mt ore
    Demonstrated 992000mt ore
    Total resources 992000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 6.7 wt-pct Copper Major 1990
    Zinc Zn 1 wt-pct Zinc Minor 1990
    Silver Ag 23.8 g/mt Silver Minor 1990
    Gold Au 1.2 g/mt Gold Major 1990

Comments on the reserve resource information

  • RESERVES USED ON 1987 EVALUATION.

Reference information

Bibliographic references

  • Production

    WRIGHT, W.R. AND C.P. PATEL, FALCONBRIDGE COPPER LIMITED,

  • Production

    LAKE DUFAULT DIVISION; D.E. PICKETT, ED., IN MILLING

  • Production

    PRACTICE IN CANADA, CIM SPECIAL VOLUME 16, 1978,P.164-167

  • Production

    TIMM, W.H.A. AND A.J. WILLIAMS, MILLING AT LAKE DUFAULT;

  • Production

    CIM BULL., APRIL, 1968, P.519-528.

  • Geology

    SIMMONS, BARRY D., GEOLOGY OF THE MILLENBACH MASSIVE

  • Geology

    SULFIDE DEPOSIT, NORANDA, QUEBEC; CIM BULL., NOV., 1973,

  • Geology

    P.67-78.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK 1980-1981, NORTHERN MINER PRESS LTD.

  • Reserve-Resource

    P. 101-102. RESERVES AS OF DECEMBER 31, 1979.

  • Reserve-Resource

    MINNOVA INC., 1989 ANNUAL REPORT, P. 12, 13.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1987-88, P. 271.

  • Reserve-Resource

    NORANDA INC., 1990 ANNUAL REPORT, P. 24.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1989-90, P. 319.

  • Reserve-Resource

    CANADIAN MINING JOURNAL, LAC DUFAULT - RUNNING OUT OF ORE,

  • Reserve-Resource

    5/86, P. 79, 81.

  • Deposit

    CRANSTONE, D.A. AND R. T. WHILLANS, CANADIAN RESERVES OF

  • Deposit

    COPPER, NICKEL, LEAD, ZINC, MOLYBDENUM, SILVER AND GOLD

  • Deposit

    AS OF JAN.1,1978, EMR CANADA, MINERALS,MR 185,1979,

  • Deposit

    P.10.

  • Deposit

    NORTHERN MINER, FALCONBRIDGE COPPER DOUBLES NET EARNINGS;

  • Deposit

    MARCH 22, 1979, P.4.

  • Deposit

    DESROSIERS, J., THE ANSIL MINE STORY: AN OVERVIEW OF

  • Deposit

    MINNOVA'S ANSIL MINE, CIM BULL. VOL. 84, NO. 955, NOV-

  • Deposit

    DEC 1991, P. 35-37.

  • Deposit

    SAMSON, RICHARD, ANSIL MINE STORY: EXPLOITATION DE LA MINE

  • Deposit

    ANSIL, CIM BULL. VOL. 84, NO. 955, NOV-DEC 1991,

  • Deposit

    P. 38-45.

  • Deposit

    FALMAGNE, VERONIQUE, ANSIL MINE STORY: ROCK MECHANICS AND

  • Deposit

    MICROSEISMIC MONITORING AT ANSIL, CIM BULL. VOL. 84,

  • Deposit

    NO. 955, NOV-DEC 1991, P. 46-51.

Reporter information

Type Date Name Affiliation Comment
Reporter 30-DEC-1994 Porter, Kenneth E. 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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