Reply to “Arctic mineral wealth — Will there be a two-sided coin?”, by Joanna LaForte

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Publication: CIM Bulletin
Author(s): T.F. Pugsley, D. Gignac
Issue: 1005
Volume: 89
Year: 1996
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Publication: CIM Bulletin
Author(s): Graham Farquharson, James Marshall
Issue: 1005
Volume: 89
Year: 1996
Text
Publication: CIM Bulletin
Author(s): Lawrence Devon
Issue: 1005
Volume: 89
Year: 1996
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Summary: Alaska’s Red Dog Mine is strengthening its position within Cominco’s “Vision 2000” strategic plan by continually improving quality and quantity of production while reducing costs. Red Dog has evolved into a stable and mature operation, after six years of milling experience. A high grade, partially oxidized ore body in the severe Arctic environment, along with competing producers in a volatile metals market, are the continuing challenges facing Red Dog. The Red Dog Mine is striving to...
Publication: CIM Bulletin
Author(s): M. Naseem Mian, Curtiss O. Ehrsam
Issue: 1005
Volume: 89
Year: 1996
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Summary: In December 1994, Polaris decided to investigate the use of cemented rockfill (CRF) to supplement the existing frozen rockfill system. Extraction plans for the remaining ore reserves required a backfill with superior stiffness properties and capable of developing high early strengths. Although CRF has been used successfully at several mining operations, there was the additional challenge of making a reliable cemented product in permafrost conditions. There was also the challenge of procuring...
Publication: CIM Bulletin
Author(s): Steve Dismuke, Tom Diment
Issue: 1005
Volume: 89
Year: 1996
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Summary: Environmental auditing has evolved rapidly over the last decade — first in North America, then Europe, and most recently in Asia — into a widely practiced discipline designed to provide senior management with assurance that operations are being managed in compliance with established governmental standards, internal company policies, and good industry practices. This paper first examines the evolution of environmental auditing, focusing in particular on three interlocking driving forces:...
Publication: CIM Bulletin
Author(s): Raymond B. Hryciuk, Arthur D. Little
Issue: 1005
Volume: 89
Year: 1996
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Summary: In this study, potential benefits of flocculant usage were explored in the processing of mill tailings by hydrocyclones. Tests conducted on copper-nickel mill tailings have demonstrated
that, under suitable conditions, flocculation could significantly enhance solid-liquid separation in hydrocyclones. For example, at a feed pulp density of approximately 9%, flocculantassisted hydrocyclone produced an underflow with over 98% solids recovery, compared to a recovery of less than 53% with...
Publication: CIM Bulletin
Author(s): Turgut Yalcin
Issue: 1005
Volume: 89
Year: 1996
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