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

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• 英文论文题名：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
• 论文作者：Yongqing Chen ; Lina Zhang ; Binbin Zhao
• 英文论文作者：Yongqing Chen ; Lina Zhang ; Binbin Zhao ; School of the Earth Sciences & Resources ; China University of Geosciences ; Institute of Geology and Geophysics ; Chinese Academy of Sciences
• 年：2016
• 作者机构：School of the Earth Sciences & Resources, China University of Geosciences;Institute of Geology and Geophysics, Chinese Academy of Sciences;
• 英文论文关键词：Bi-Empirical Mode Decomposition ; Principal Component Analysis ; the Pb-Cd-Ag-Zn association anomaly component ; the Sn-W-Bi association anomaly component ; the skarn lead-zinc and the greisen tin mineralization ; Tengchong Block ; Southwestern China
• 会议召开时间：2016-10-21
• 会议录名称：第十五届全国数学地质与地学信息学术研讨会论文集
• 英文会议录名称：Proceedings of the 15th National Workshop on Mathematical Geosciences and Geoinformatics
• 语种：英文
• 分类号：P624
• 学会代码：ZSYD
• 会议名称：第十五届全国数学地质与地学信息学术研讨会
• 会议地点：中国湖南长沙
• 主办单位：中国地质学会数学地质与地学信息专业委员会、中南大学、湖南省国土资源厅、湖南省地质学会
• 学会名称：中国地质学会数学地质与地学信息专业委员会
• 页数：1
• 文件大小：955k
• 原文格式：D
• 会议级别：全国

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.

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