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  3. Mineral Resource Data System (MRDS)

Robb Lake

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

Geologic information

Identification information

Deposit ID 10157212
MAS/MILS ID 1220100072
Record type Site
Current site name Robb Lake

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -123.72937, 56.94157 (WGS84)
Location accuracy 5000(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
Lead Primary
Silver Secondary
Zinc Critical Primary

Nearby scientific data

Ore Body (1) -123.72937, 56.94157
ListMap

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 MASS SULFIDE
    Shape of Orebody #2 LENTICULAR
    Type of Orebody #3 BRECCIA FILL
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control FOLDING
    Secondary Ore Control BEDDING
    Date of Last Modification 830708

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1971
Mining method Open Stope - Room and Pillar

Ownership information

  • Type Owner
    Owner Barrier Reef Resources Ltd.
    Interest 20
    Home office Canada
    Year 1981
  • Type Owner-Operator
    Owner Texasgulf Canada Ltd.
    Interest 40
    Home office Canada
    Year 1981
  • Type Owner
    Owner Arrow Inter-American Corp
    Interest 40
    Year 1981

Comments on the ownership information

  • POTASH CORP. OF SASKATCHEWAN PURCHASED TEXASGULF, INC. FROM ELF AQUITAIN SA IN MAY OF 1995.

Comments on the reserve resource information

  • GRADE IS 7.3% PB-ZN COMBINED AND IS D.D. INFERRED IN 3 AREAS. ARROW INT AM-40%-OW/OP, BARRIER REEF 20% OW/OP.
  • 5,500,000 MT 1-1-81 5.48% ZN; 1.82% PB; 20 G/MT AG(ESTIMATED)

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method ROOM AND PILLAR 10-34
    Slope of Inclines 10
    Avg. Length of Adits (m) 250
    Number of Adits 1
    Capacity 1500
    Capacity Units MT ORE/DAY
    Unit Production Cost 38.5
    Units of Production $/MT ORE
    Operating Days per Year 300
    Year of Information 1981

Comments on the workings information

  • AREA IS REMOTE FROM ANY TOWNSITE AND PAVED ROAD. NO POWER AVAILABLE NEARBY.

Reference information

Bibliographic references

  • Ownership

    NORTHERN MINER PRESS LTD., CANADIAN MINES HANDBOOK 1979-80;

  • Ownership

    1979, P.30,35,275.

  • Ownership

    MINING ENGINEERING, MAY 1995, P407.

  • 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

    EMR, MR 181, 1978, P.A-37.

  • Reserve-Resource

    BARRIER REEF RESOURCES, LTD. 1976 ANNUAL REPORT.

Reporter information

Type Date Name Affiliation Comment
Reporter 25-JUN-96 Eastern Field Operations Center (EFOC) 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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