西藏双湖买马乡化探组合异常提取与圈定

The Extraction and Delineation of Geochemical Composite Anomalies of Shuanghu Maima Township in Tibet

对西藏双湖买马乡地区1:50000水系沉积物数据进行全面的处理,对原始数据进行异元值迭代处理,多次进行直至无异元值可剔除为止,形成背景数据集。以多元统计原理为基础,应用因子分析确定出元素的共生组合,并最终确定了Co-Ni-Cr-Cu-Zn;Sn-Bi-Pb-W;As-Sb-Cd;Au-Mo-Ag四个共生组合,并对Co-Ni-Cr-Cu-Zn共生组合进行了组合异常圈定,作出了元素组合异常图。从圈定的组合异常图可以看出,五种元素的在空间上的套合较好,说明利用因子分析圈定组合异常的方法能够较好的确认地球化学元素组合异常,为下一步找矿工作提供了重要信息。

A comprehensive treatment of 1：50,000 water system sediment data in Shuanghu, Tibet, and the original data is iterative processing, and the background data set can be eliminated by the different meta-value. Based on the principle of multivariate statistics, the symbiotic combination of elements is determined by factor analysis, and the four symbiotic combinations of Co-Ni-Cr-Cu-Zn; Sn-Bi-Pb-W; As-Sb-Cd; Au-Mo-Ag are finally determined, and the combination of Co-Ni-Cr-Cu-Zn symbiosis is delineated and the anomaly graph of elements is made. It can be seen from the enclosed combinatorial anomaly graph, that the five elements are better in space, indicating that the method of using factor analysis to delineate the combination anomalies can better confirm the abnormal composition of the earth elements, and provide important information for the next prospecting work.