NICKEL ORE RESOURCES MODELING USING GEOSTATISTICAL METHOD AT BONI VILLAGE, RAJA AMPAT REGENCY, WEST PAPUA
PERMODELAN SUMBERDAYA BIJIH NIKEL BERDASARKAN METODE GEOSTATISTIK DI DESA BONI KABUPATEN RAJA AMPAT PAPUA BARAT
Keywords:
Nickel, resource, krigingAbstract
Estimating of nickel resource in block WN-01 PT. Karunia Alam Waigeo, West Papua aims to understand the number of metal tonnages and the direction of the resource dispersion. The study has been done with phases which are literature study, retrieval of drill data (49 boreholes), data processing with Ordinary Kriging (OK) method using GS+ version 70 software, in as much, estimating the resources using block method kriging and point kriging. To understand the estimation correlation of grade to composite grade the scatter diagram analysis was used. Based on the scatter diagram (scatter plot) for the block kriging method correlation coefficient of 0,8843 is obtained while for the point kriging method is 0,8935. With a standard deviation of 0,3280, the point block kriging method has obtained 18.630,08 tons of nickel while for the point kriging method with 0,4060 of the standard deviation the nickel obtained is 18.875,41 tons.
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Copyright (c) 2019 Ricardo O. M. Hutapea

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