Technical Report for the Maricunga Gold Mine - Kinross Gold

Kinross Gold CorporationMaricunga Mine Technical ReportTable 17-5: Statistics for 5 m Gold Composites – PanchoDomain Number Mean Au Std. Dev. Coef. of Minimum Maximumg/tVariationAll 12,578 0.52 0.45 0.87 0 4.001 3,477 0.94 0.53 0.56 0 4.002 4,330 0.51 0.27 0.52 0 2.003 4,018 0.27 0.26 0.97 0 1.78Table 17-6: Statistics for 5 m Copper Composites – PanchoDomain Number Mean Cu Std. Dev. Coef. of Minimum MaximumppmVariationOutside 9,314 303 303 1 0 4,254Inside 2,592 1,048 1048 1 3 7,820Table 17-7: Statistics for 5 m Cyanide Soluble Copper Composites – PanchoDomain Number Mean Cu Std. Dev. Coef. of Minimum Maximumppm VariationOutside 7,047 92 184 2 0 2,410Inside 2,088 469 469 1 3 465017.4.4 Contact ProfilesFor the updated models, contact profiles were generated to determine cases where hard orsoft boundaries should be used during grade interpolation. The graphs were examined andsearch strategies as described in the grade interpolation sections were adopted.17.4.5 VariographyDirectional semi-variograms, (15 degree increments horizontal, 30 degree incrementsvertical) were modelled for both Verde and Pancho, examining only the composited drill databelow the current topographic surfaceThe variography focused on the composites for the three zones defined at Verde andPancho. The models generally indicated isotropic, two-structure models with well definednugget values that were less than 35% of the modelled sill value.84