BLOCK MODEL OPTIMIZATION AND RESOURCE ESTIMATION OF THE ANGOURAN MINE BY TRANSFERRING THE EXPLORATORY DATA FROM THE LOCAL COORDINATE SYSTEM TO THE UTM

Resource estimation is one of the most important steps in mining process. Precise resource has a significant influence on optimization subsequent steps, i.e. mine planning and scheduling. The previous Angouran Mine was conducted based provided information local coordinate system which causes considerable errors estimations. Therefore, an attempt made this research to optimize block model UTM global system. For purpose, exploratory data firstly transferred from environment. Then, using indicator kriging (IK) waste blocks are removed optimized. Finally, performed inverse distance weighting (IDW) simple (SK) methods. After variogram analyses different directions, it found that deposit anisotropic. Also, validation results showed acquired correlation coefficient carbonate sulfide sections for IDW, SK IK 0.86, 0.87 0.92, 0.88, respectively. obtained grades tonnages compared with actual boreholes, mined mine. Comparative both new models over-estimated higher than values. minimum grade equal 46% 23.1% estimations (before after removal), tonnage 50.29% 28.37% models, This field comparison proved transferring system, utilization remove applying lead reduction error