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Canada
Copper Cliff North Mine (Sudbury Operation)

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 Location:
9 km W from Sudbury, Ontario, Canada

  Regional Office:
18 Rink Street
Copper Cliff
Ontario, Canada
P0M 1N0
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  • Overview
  • Owners
  • Geology
  • Mining
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  • Reserves
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  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Nickel
  • Copper
  • Cobalt
  • Platinum
  • Palladium
  • Gold
Mining Method
  • Vertical block mining (VBM)
  • Slot-Slash
Production Start...
Copper Cliff mine is a part of Vale integrated Ontario Operations which also includes (Coleman, Creighton, Garson and Totten mines), processing and refining facilities (Clarabelle Mill, Copper Cliff Smelter and Nickel Refinery, Port Colborne refining complex), supported by the Clydach Refinery in Wales, and non-operating mines, and non-producing properties.


Owners

Source: p. 6
CompanyInterestOwnership
Vale S.A. 100 % Indirect
Vale conducts nickel operations primarily through wholly-owned subsidiary Vale Canada Limited, which operates two nickel production systems, one in the North Atlantic region and the other in the Asia Pacific region.

Contractors

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Deposit Type

  • Magmatic


Summary:

Significant economic Ni-Cu-PGE-Au mineralization occurs within quartz diorite offset dykes at Copper Cliff Mine offset orebodies and the Totten Mine orebodies. They can extend for many kilometres into the Sudbury Structure wall rock, and may be radial or concentric to the contact of the SIC with distinct, sharp contacts. Quartz diorite is the main component of South Range offsets, and of distal (>3 km from sic contact) portions of North Range offsets. Footwall breccia also occurs here as sheets and discontinuous lenses concentrated along the lower contact of the SIC, and as a major component of some of the offset dykes.

Mineralization consists of zones of disseminated blebby and massive Ni-Cu-PGE-Au sulphide that is spatially associated with inclusion-rich phases of quartz diorite, as well as with local structural complexities of the dykes. Ni-Cu-PGE-Au deposits have longer dip lengths then strike length and contain at least 5% sulphide. Areas between orebodies consist of barren quartz diorite or weakly mineralized inclusion-rich quartz diorite.


Mining Methods

  • Vertical block mining (VBM)
  • Slot-Slash


Summary:

The Copper Cliff Mine uses Vertical Retreat Mining, Blasthole Stoping (slot-slash variation) for the bulk of the production. Sill pillars are recovered using Uppers Retreat Mining. The Copper Cliff Mine Life of Mine Plan also makes provision for limited use of mechanized cut-and-fill mining.


Crushing and Grinding


Processing

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Summary:

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Combined production numbers are reported under Sudbury Operation

Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required644 kt746 kt814 kt979 kt
Daily ore mining rate  ......  Subscription required  ......  Subscription required2,826 t
Subscription required - Subscription is required.

Reserves at December 31, 2022:

CategoryTonnage CommodityGrade
Measured & Indicated 6,273 kt Nickel 1.33 %
Measured & Indicated 6,273 kt Copper 1.28 %
Measured & Indicated 6,273 kt Cobalt 0.04 %
Measured & Indicated 6,273 kt Platinum 1.07 g/t
Measured & Indicated 6,273 kt Palladium 1.4 g/t
Measured & Indicated 6,273 kt Gold 0.41 g/t
Inferred 2,535 kt Nickel 1 %
Inferred 2,535 kt Copper 1.6 %
Inferred 2,535 kt Cobalt 0.03 %
Inferred 2,535 kt Platinum 1.6 g/t
Inferred 2,535 kt Palladium 1.5 g/t
Inferred 2,535 kt Gold 0.6 g/t



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
....................... Subscription required ....................... Subscription required Subscription required May 30, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Form 20-F 2018
Form 20-F 2017
Form 20-F 2016
Other 2016
Form 20-F 2015
Form 20-F 2014
Other 2010
Project Description 2010
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Subscription required - Subscription is required.

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