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Conference Proceedings

Third Large Open Pit Mining Conference, Mackay, August 1992

Conference Proceedings

Third Large Open Pit Mining Conference, Mackay, August 1992

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Optimising Pit Slope Design at Kidston Gold Mines

Kidston Gold Mines Limited (70 per cent Placer Pacific and 30 per cent Public Shareholders) has been mining the Wises Hill Pit since late-1984. The Wises Hill Deposit is a large low grade gold deposit and as such is highly sensitive to economic parameters. The uniformity of the orebody has allowed a bulk mining method to be used, with minimal dilution. Total reserves defined to-date are 64 160 OOOT at a grade of 1.60 g/t gold. Mineable reserves remaining as of January 1992 are 36 357 OOOT at a grade of 1.28 g/t gold.
Mining investigations to reduce the impact of lower gold prices, the effect of decreasing headgrade and increasing mining costs have focused on wall steepening.
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  • Published: 1992
  • PDF Size: 0.753 Mb.
  • Unique ID: P199208046

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