元素地球化学多元统计分析在湖南龙山金锑矿的应用

Application of Element Geochemical Multivariate Statistical Analysis to Gold and Antimony Deposits in Longshan

对湖南龙山金锑矿中微量元素进行参数统计显示,Au、Ag、As、Sb、W、Cu元素含量相对高,变化系数较大,易形成实质性的地球化学异常;因子分析、聚类分析表明,Au、As、Sb、Cu元素代表主要成矿元素的组合;对应分析表明,蚀变板岩的形成与Au的成矿热液活动关系较密切;元素分布型式显示,Au、As、Sb元素代表了主要成矿元素的富集组合,其分布范围广,离散度大,可作为本区找矿的指示元素。

The statistics of trace element parameters show that the contents of Au,Ag,As,Sb,W,Cu are relatively high,the coefficient of variation is large,and it is easy to form substantial geochemical anomalies.Factor analysis and cluster analysis show that au,Ag,As,Sb and Cu represent the assemblage of the main ore-forming elements,and the corresponding analysis shows that the formation of altered slate is closely related to the ore-forming hydrothermal activity of au.The distribution patterns and fractal statistical characteristics of elements show that Au,As and Sb elements represent the enrichment and assemblage of the main ore-forming elements,which can be used as indicator elements for prospecting in this area because of their wide distribution range and large dispersion.