1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Copper Rand

Producer in Quebec, Canada with commodities Copper, Gold, Silver
Map
XML
JSON
KML
B
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10106957
MRDS ID TC00511
Record type Site
Current site name Copper Rand

Geographic coordinates

Geographic coordinates: -75.99956, 50 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Quebec

Comments on the location information

  • MINE ROAD 8 KM SE OF CHIBOUGAMAU TOWN, QUEBEC

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Siderite Ore
Ankerite Gangue
Apatite Gangue
Calcite Gangue
Chloritoid Gangue
Magnetite Gangue
Quartz Gangue
Sericite Gangue
Talc Gangue
Zoisite Gangue

Alteration

  • (Local) Sericite-Chlorite-Carbonate; Chlorite-Sericite Also Form Regional Halo

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Anorthosite
    Rock unit name Dore Lake Complex
    Rock description Dore Lake Complex
    Stratigraphic age (youngest) Proterozoic
    Chronological age 2150
    Dating method K-Ar

Nearby scientific data

(1) -75.99956, 50
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Chibougamau-Matagami Greenstone Belt. Rocks Folded About Ne Axes Refolded To E Trending Axes.
Type of structure Local
Structure description Shear Zone Trending N50deg-60degw And Dipping S 50-65deg, Dore Lake Fault

Ore body information

  • General form LENSES
    Strike N50DEG-60DEGW
    Dip 50-65DEG
    Plunge direction S

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1910
Discoverer Captain H.C. Marchin
Year of first production 1959

Ownership information

  • Type Operator
    Owner Westminer (Canada) Ltd.
  • Type Owner
    Owner Western Mining Corp. Australia

Production statistics

  • Year 1989
    Period 1960-1989
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^1.85% Cu, 0.115 Oz/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 4g/mt
    Ore Copper Copper 2wt-pct
  • Year 1990
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^1.46% Cu, 0.115 Oz/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 4g/mt
    Ore Copper Copper 1wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1959
    Total resources 1854000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.79 wt-pct Copper Major 1959
    Gold Au 0.777 g/mt Gold Major 1959
  • Type In-situ
    Estimate year 1989
    Total resources 5127600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.69 wt-pct Copper Major 1989
    Gold Au 2.115 g/mt Gold Major 1989

Workings at the site

  • Type of workings Unknown
    Overall depth 3600M

Comments on the workings information

  • PRODUCTION SHAFT SURFACE TO 2700 LEVEL. INTERNAL SHAFT 2500-3600 LEVEL.

Comments on development

  • HISTORICALLY MINED USING SHRINKAGE STOPING IN NARROW ORE LENSES; LONG HOLE STOPING IN WIDER LENSES; CURRENTLY (1990) USING MECHANIZED HYDRAULIC CUT AND FILL MINING; MILL TAILINGS AND SAND ARE USED AS BACKFILL. ; MILL.CAP: 3500 MT/D ; ECON.COM: 225 UNDERGROUND WORKERS; MILL TREATS ORE FROM BOTH COPPER RAND AND PORTAGE MINES.

Reference information

Bibliographic references

  • Deposit

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

  • Production

    CORE SHED DISPLAY APPENDIX, 1990.

General comments

Subject category Comment text
Deposit SUBSEQUENT DEFORMATION FOLLOWING INITIAL MINERALIZATION HAS REMOBILIZED ORE INTO A SERIES OF DISCRETE EN-ENCHELON LENSES WITHIN SHEAR ZONE

Reporter information

Type Date Name Affiliation Comment
Reporter 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.

Maps centered on this site