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  3. Mineral Resource Data System (MRDS)

Ja Zone

Prospect in British Columbia, Canada with commodities Copper, 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. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10255509
MAS/MILS ID 1220100040
Record type Site
Current site name Ja Zone

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -120.97626, 50.47623 (WGS84)
Elevation 1200
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada British Columbia

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary

Materials information

Materials Type of material
Biotite Unknown
Bornite Unknown
Calcite Unknown
Chalcopyrite Unknown
Epidote Unknown
Feldspar Unknown
Gypsum Unknown
Molybdenite Unknown
Pyrite Unknown

Nearby scientific data

Ore Body (1) -120.97626, 50.47623
ListMap

Economic information

Ore body information

  • Strike S45E
    Dip 20E
    Thickness 450M
    Length 1000M
    Width 300M
    Area 50HA
    Depth to top 300M
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 MASSIVE
    Type of Orebody #2 FISSURE VEIN
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 ADV ARGILLIC
    Type of Wallrock Alter. #3 PROPYLITIC
    Strike And Dip S45E:20E
    Minimum Depth to Top 300
    Avg. Thick. Unconsol. Mat. 300
    Min. Thick. Unconsol. Mat. 300
    Total Surface Area (HA) 50
    Date of Last Modification 810326

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1971
Mining method Caving Methods - Block Caving
Milling method Flotation

Mining district

District name Kamloops Mining Division

Ownership information

  • Type Owner-Operator
    Owner Cominco, Ltd.
    Interest 100
    Home office Canada
    Year 1992

Comments on the ownership information

  • NOT LISTED AS EXPLORATION PROPERTY BY COMINCO, CMH 1992-1993.

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Indicated 259700000mt ore
    Demonstrated 259700000mt ore
    Total resources 259700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Molybdenum Mo 0.017 wt-pct Molybdenum Major 1976
    Copper Cu 0.43 wt-pct Copper Major 1976
  • Type In-situ
    Estimate year 1976
    Indicated 117900000mt ore
    Demonstrated 117900000mt ore
    Total resources 117900000mt ore
    Commodity Subtype Grade units Group Importance Year
    Molybdenum Mo 0.027 wt-pct Molybdenum Major 1976
    Copper Cu 0.51 wt-pct Copper Major 1976
  • Type In-situ
    Estimate year 1976
    Indicated 259700000mt ore
    Demonstrated 259700000mt ore
    Total resources 259700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Molybdenum Mo 0.017 wt-pct Molybdenum Major 1976
    Copper Cu 0.43 wt-pct Copper Major 1976

Comments on the reserve resource information

  • MR 223, BC 131, (12/31/88) MR 223, BC 131, (12/31/88)
  • THIS TONNAGE HAS BEEN SUPPLIED BY MAFO AND THE PROPOSED MINING METHOD (BLOCK CAVING) FOR THIS TONNAGE IS MORE REALISTIC THAN THE SURFACE MINE PROPOSAL AT A 3.4:1 STRIP RATIO. COAKLEY, GEORGE J., JULY 14, 1977, REPORT ON FIELD TRIP TO HIGHLAND VALLEY, BRITISH COLUMBIA, COPPER DISTRICT, APRIL 27-29, 1977:P.28. RESERVES FOR HYPOTHETICAL OPEN PIT. THIS TONNAGE AVAIL. ONLY IF SURFACE MINED AT 3.4 STRIP RATIO
  • RESERVES AS OF DEC 31, 1979. DEMONSTRATED CATEGORY IS FOR SURFACE RESOURCE MINEABLE BY OPEN PIT. UNDERGROUND BLOCK CAVE MINEABLE RESOURCES ARE ESTIMATED AT 117.9M METRIC TONDS AT .51% CU AND 0.027% MO.

Workings at the site

  • Type of workings Underground
    Length 5488M
    Overall depth 579M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method BLOCK CAVING 10-79
    Swell Factor .61
    Percent Waste Rock 0
    Percent Recovery 100
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Number of Shafts 3
    Capacity 16860
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1986

Reference information

Bibliographic references

  • Geology

    MCMILLAN, W.J., J.A.; A. SUTHERLAND BROWN, ED., PORPHYRY

  • Geology

    DEPOSITS OF THE CANADIAN CORDILLERA, CIM SPECIAL VOLUME

  • Geology

    15, 1976, P.144-162.

  • Reserve-Resource

    BETHLEHEM COPPER CORPORATTION,1977,TWENTY-SECOND ANNUAL RE-

  • Reserve-Resource

    PORT,1976: 1055 W. HASTINGS ST., VANCOUVER, BRITISH COLUM-

  • Reserve-Resource

    BIA, P. 8-11. (RESERVES AS OF DECEMBER 31, 1976)

  • Reserve-Resource

    EMR CANADA, CANADIAN MINERAL DEPOSITS NOT BEING MINED IN

  • Reserve-Resource

    1989, MR 223, NOV., 1989, P. BC 131.

  • Deposit

    COAKLEY, GEORGE J. REPORT ON FIELD TRIP TO HIGHLAND VALLEY,

  • Deposit

    B.C. COPPER DISTRICT, APR., 27-29, 1977. JULY 14, 1977,

  • Deposit

    P. 12-16.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-SEP-94 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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