Technical Report for the Maricunga Gold Mine - Kinross Gold
Technical Report for the Maricunga Gold Mine - Kinross Gold
Technical Report for the Maricunga Gold Mine - Kinross Gold
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<strong>Kinross</strong> <strong>Gold</strong> Corporation<strong>Maricunga</strong> <strong>Mine</strong> <strong>Technical</strong> <strong>Report</strong><strong>for</strong> mixed ore and 69% <strong>for</strong> sulphide ore. The assumptions <strong>for</strong> <strong>the</strong> copper recoveriesincorporate <strong>the</strong> dissolution rates <strong>for</strong> <strong>the</strong> different material types. They are 71%, 92% and60% respectively <strong>for</strong> oxide, mixed and sulphide material. These rates are used inconjunction with a 95% plant recovery resulting in final recoveries of 67% <strong>for</strong> oxides, 87% <strong>for</strong>mixed and 57% <strong>for</strong> sulphides. Table 17-15 summarizes <strong>the</strong> optimization parameters <strong>for</strong>Pancho.Table 17-15: Optimization Parameters <strong>for</strong> PanchoMining CostsUnit Mining Costs $1.000Mining Recovery 97.50%Mining Dilution 2.50%Pit SlopesProfile 1 Azimuth Slope70 44.5Below 4300 m 153 49210 44.5308 52.5Profile 2 Azimuth SlopeAbove 4300 m 90 3990 39Process RecoveriesOxide Au 85%Mixed Au 75%Sulphide Au 68%Processing CostsProcess costs $us/t Block Model PCAF<strong>Gold</strong> Prices $550 and $625Selling costs$US/ozScale17.10 Pit DesignsFor <strong>the</strong> 2007 reserve estimate final pit designs were prepared <strong>for</strong> <strong>the</strong> Verde pits and Pancho.Waste dump designs and overall site layout were also updated.17.10.1 VerdeVerde pit design work was completed by CMM’s mine planning engineers using Vulcanmining software. The software allows <strong>the</strong> user to input slope design criteria that varies both93
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