Technical Report for the Maricunga Gold Mine - Kinross Gold

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Kinross Gold CorporationMaricunga Mine Technical Report16.1.3 Column Leach TestsResults of the bottle roll tests were used to target specific areas of the deposit with the HQdiameter drill holes that were used to collect the sample material necessary for column leachanalysis. Composite samples were collected from whole HQ diameter core that was drilledspecifically for the metallurgical test program. A total of 10 HQ diameter holes (1,500 meters)of core were drilled at Verde for the purpose of column leach tests. An additional seven (7)samples were collected at Pancho but unlike the Verde samples, the Pancho samples weretaken from remaining half cores available at the time of sample selection.For the Verde samples, column tests were established for three different product sizes (6.3,9.5 and 15.8 mm). The same sample selection matrix established for the bottle roll testsguided column leach sample selection. Grade of the HQ diameter core was confirmed bycutting a sliver sample for each two-meter interval. Table 16-3 summarizes the ColumnLeach Sample program.Table 16-3: Summary of Column Leach Sample SelectionGold GradeDeposit Low Medium High(0.50 - 0.75 g/t) (0.75 – 1.00 g/t) (>1.00 g/t)# of2 2 3PanchoVerdeWestVerde Eastsamples# ofsamples# ofsamples2 2 12 2 2OxidationDeposit Oxide Mixed Sulphide(>90%) (10-90%) (
Kinross Gold CorporationMaricunga Mine Technical ReportFigures 16-1 and 16-2 are plan views of the Verde and Pancho pits showing theoriginal metallurgical sample distribution within the 2002-2003 design pit shells.Table 16-4: Summary of Column Leach Test ResultsDeposit Ore Type Crush SizeWestVerdeEastVerdeSulphideMixedAuRecovery(k 80 mm) (%)15.8 44.09.5 53.76.3 57.215.8 70.59.5 73.66.3 79.3EastVerde Oxide 9.5 77.0Pancho Sulphide 9.5 71.6Pancho Mixed 9.5 79.8Pancho Oxide 9.5 89.0Figure 16-1: Metallurgical Sample Locations – Verde Pit – 4300 Level63
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Technical Report for the Maricunga Gold Mine - Kinross Gold

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