Separation of ore-forming element components from element association anomalies using Bi-dimension Empirical Mode Decomposition combined with Principal Component Analysis in the Tengchong terrain, SW China
摘要
An ore-forming element association established by Principle Component Analysis(PCA) can be separated into two types of components using BEMD, one being high background of the element association favorable mineralization, and the other representing its element association anomaly component, which can be used for effectively identifying ore-finding targets. In this paper, firstly, PCA was applied to establish ore-forming element associations; secondly, the ore-forming association anomaly components characterizing different types of mineralization are identified from the ore-forming element associations by using BEMD; and finally ore-finding targets are delineated based on the ore-forming association anomaly components. In this study the ore-forming association anomaly components have used for effectively mapping ore-finding targets of both the greisen tin deposits and the skarn lead-zinc polymetallic deposits in the study area. It has been illustrated by our studies that BEMD combined with PCA can be effectively applied in extracting the element association anomy components characterizing different types of mineralization and the geological factors associated with mineralization.
An ore-forming element association established by Principle Component Analysis(PCA) can be separated into two types of components using BEMD, one being high background of the element association favorable mineralization, and the other representing its element association anomaly component, which can be used for effectively identifying ore-finding targets. In this paper, firstly, PCA was applied to establish ore-forming element associations; secondly, the ore-forming association anomaly components characterizing different types of mineralization are identified from the ore-forming element associations by using BEMD; and finally ore-finding targets are delineated based on the ore-forming association anomaly components. In this study the ore-forming association anomaly components have used for effectively mapping ore-finding targets of both the greisen tin deposits and the skarn lead-zinc polymetallic deposits in the study area. It has been illustrated by our studies that BEMD combined with PCA can be effectively applied in extracting the element association anomy components characterizing different types of mineralization and the geological factors associated with mineralization.
引文