首页|Application of K-means and PCA approaches to estimation of gold grade in Khooni district (central Iran)
Application of K-means and PCA approaches to estimation of gold grade in Khooni district (central Iran)
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国家科技期刊平台
NETL
NSTL
万方数据
维普
Grade estimation is an important phase of mining projects,and one that is considered a challenge due in part to the structural complexities in mineral ore deposits.To overcome this challenge,various techniques have been used in the past.This paper introduces an approach for estimating Au ore grades within a mining deposit using k-means and principal component analysis (PCA).The Khooni district was selected as the case study.This region is interesting geologically,in part because it is considered an important gold source.The study area is situated approximately 60 km northeast of the Anarak city and 270 km from Esfahan.Through PCA,we sought to understand the relationship between the elements of gold,arsenic,and antimony.Then,by clustering,the behavior of these elements was investigated.One of the most famous and efficient clustering methods is k-means,based on minimizing the total Euclidean distance from each class center.Using the combined results and characteristics of the cluster centers,the gold grade was determined with a correlation coefficient of 91％.An estimation equation for gold grade was derived based on four parameters:arsenic and antimony content,and length and width of the sampiing points.The results demonstrate that this approach is faster and more accurate than existing methodologies for ore grade estimation.
K-means methodClusteringPrincipal component analysis (PCA)EstimationGoldKhooni district
国家科技期刊平台
NSTL
万方数据
维普
