祁漫塔格地区化探数据离散组合特征及找矿意义

The discrete combination characteristics of geochemical data and prospecting significance of the Qimantage area

在1∶5万水系沉积物测量的基础上,应用11 974件水系沉积物样品和5 149件岩石样品15种元素数据,在充分分析各元素空间变化及矿化富集规律的基础上,利用离散特征分析、浓幅分位、R型聚类分析、因子分析等方法,系统研究了东昆仑祁漫塔格地区水系沉积物中15种元素丰度、离散、组合、及分布规律。结果表明:本区在全省成矿潜力明显较弱,但是在东昆仑地区多金属(贵金属)成矿潜力较好,元素的富集离散特征与区内目前所发现的矿化特征基本一致,反映出区内成矿的情况,从而得出区内15种元素的元素地球化学特征。

On the basis of measurements of 1：50000 stream sediment,data of 15 elements in 11 974 stream sediment samples and 5 149 rock samples were used. According to space variation and mineralization enrichment regularity of all elements, using the methods of discrete analysis, concentrated amplitude score position, factors analysis and R cluster analysis, the abundance, discrete, combination and distribution of 15 elements in Qimantage of the East Kunlun area were studied. The results show that metallogenie potential of this area is weaker than whole province significantly, but it has the metallogenie potential of polymetallic （ noble metal）. The elements＇ characteristics of enrichment and discrete have the same mineralization characteristics in this area, presenting metallogenic condition. The geochemical characteristics of 15 elements have important theoretical and practical significance for geological work in this area.