Application on the disjunctive kriging in global estimate of recoverable resource

In the mining program,the classical linear geostatistics such as ordinary kriging will induce biased estimate for the local recoverable ore reserves and metal and grade over smoothing,due to lack of the available sample data.In order to solve the a certain bias for the high smoothing effect when estimating the grade of a very small mining selectivity using the classic linear classic geostatistics,based on a gold deposit for instance,the non-linear techniques for example disjunctive kriging are considered acceptable for estimating the recoverable reserve of local mining selectivity and prediction of grade histogram at the different cutoffs in the panel,which may have an indicative arrangement on the mining plan.