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Buchans Pb, Zn, Cu, Ag Unit

Producer in Newfoundland, Canada with commodities Copper, Lead, Zinc, Silver, Gold, Cadmium
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10073128
MRDS ID W018968
Record type Site
Current site name Buchans Pb, Zn, Cu, Ag Unit
Alternate or previous names Maclean, Rothermere Mines

Geographic coordinates

Geographic coordinates: -56.8489, 48.76653 (WGS84)
Relative position 77 KM FROM BADGER ON TRANS-CANADA HIGHWAY

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Newfoundland

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Barite Gangue
Calcite Gangue
Chlorite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Chloritization, Sericitization, Silicification

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Ordovician
    Chronological age 475
    Dating method U-Pb (zircon)
    Type of media Zircon

Nearby scientific data

(1) -56.8489, 48.76653
ListMap

Economic information

Controls for ore emplacement

  • Submarine Polymictic Debris Flow Of Breccia Ores

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1905
Discoverer Matty Mitchell; Spectacular Discoveries In 1926 By Hans Lundberg
Year of first production 1928
Year of last production 1984

Mining district

District name Buchans District

Ownership information

  • Type Operator
    Owner Bp Resources Canada Ltd.
  • Type Owner
    Owner Abitibi-Price Inc. And Asarco Inc.

Production statistics

  • Year 1972
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^81,249 Mt Cu-Pb-Zn Concentrates
  • Year 1974
    Material AG
    Accuracy Accurate
    Description Ap_Grade: ^100. % Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 100wt-pct
  • Year 1975
    Period 1928-1975
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^14.88 % Zn, 7.70 % Pb, 1.36 % Cu, 128 G Ag/Mt, 1.54 G Au/Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 2g/mt
    Ore Silver Silver 128g/mt
    Ore Copper Copper 1wt-pct
    Major Ore Lead Lead 8wt-pct
    Ore Zinc Zinc 15wt-pct
  • Year 1984
    Period 1928-1984
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^14.51% Zn, 7.56% Pb, 1.33% Cu, 126 G/T Ag, 1.37 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 1g/mt
    Ore Silver Silver 126g/mt
    Ore Copper Copper 1wt-pct
    Major Ore Lead Lead 8wt-pct
    Ore Zinc Zinc 15wt-pct

Comments on the production information

  • 1179 MTPD MILL, 6 DAY WORK WEEK

Reserves and resources

  • Type In-situ
    Estimate year 1973
    Total resources 1450000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1 wt-pct Copper Major 1973
    Lead Pb 7 wt-pct Lead Major 1973
    Zinc Zn 12 wt-pct Zinc Major 1973

Workings at the site

  • Type of workings Underground
    Overall depth 1074M

Comments on the workings information

  • ROTHERMERE SHAFT TO 766 M. MACLEAN SHAFT TO 1074 M.

Comments on development

  • 266,671 M DRILLED; 1080 SURFACE DIAMOND DRILL HOLES AS REPORTED IN 1990. ; MILL.CAP: 1250 ST/D ; ECON.COM: SELECTIVE FLOATATION EXTRACTION

Reference information

Bibliographic references

  • Deposit

    CORE SHED DISPLAY APPENDIX, 1990, VIII SYMPOSIUM, INTERNATIONAL ASSOCIATION ON THE GENESIS OF ORE DEPOSITS, OTTAWA, CANADA

  • Production

    AMERICAN METAL MARKET 7-16-75, CANADIAN MINES HANDBOOKS 74 - 75 P 28. SKINNER'S MINING INTL. YBK. 1975 P. 540. ENGINEERING AND MINING JOUR. 11-76 P 189; CORE SHED DISPLAY APPENDIX, 1990.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 74 - 75, P 28

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Schruben, Paul G. U.S. Geological Survey
Updater 01-OCT-1990 Bolm, Karen S. U.S. Geological Survey

Beyond USGS

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

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