Abstract

This paper introduces the study results of the structural function model for comprehensive evaluation of three-dimensional change of copper content at Sin Quyền mine. The results indicated that: Based on the Open Source Software SgeMS, authors have already developed a set of Geostatistical Software Tool for calculating and modeling spatial structural function model by using the five most common  models: spherical, exponential, Gausian, linear and pure nugget effect. The model has been successfully applied for ore-bodies, which have nearly vertical dip, complicated variation; exploration works in the study area are bending, deviating boreholes with different azimuth. The main exploration lines direction determined by using the structural function model is North-South. These lines sometimes parallel/not parallel to each other or are none-linear. The density of exploration network for mineral reserves of grades 121 and 122 are [(40x30)±5 m] and [(75x60)±10 m], respectively.