R型因子分析和聚类分析在确定元素组合中的应用——以万第—留格庄一带1∶5万水系沉积物测量为例

Application of R Type Factor Analysis and Cluster Analysis in Determining Element Combination——Taking the Measurement of Stream Sediment with the Scale of 1∶50000 in Wandi—Liugezhuang Area as an Example

摘要:

为准确划分胶东地区万第—留格庄一带1∶5万水系沉积物测量元素共生组合类型和圈定元素异常，利用R型因子分析和聚类分析，将研究区13种元素划分为5种组合类型：Au、AgSn、Hg、CuNiAsSb、BiWMoPbZn。结果表明，因子分析和聚类分析结果对应较好，有效的确定了研究区元素共生组合类型，为组合异常圈定提供了精准依据。通过对组合异常的查证，组合异常与地质矿产特征对应较好，在区内新发现铜矿（化）点3处、铅锌矿点1处，为下一步矿产勘查工作指明了方向。

Abstract:

In order to accurately classify the element association types and delineate the element anomalies in stream sediment measurements with the scale of 1∶50000 in Wanti—Liugezhuang area in Jiaodong area, by using R type factor analysis and cluster analysis, 13 elements in the study area can be divided into 5 combination types, they are Au, AgSn, Hg, CuNiAsSb and BiWMoPbZn. It is showed that the results of factor analysis and cluster analysis can correspond well. The type of element symbiosis association in the study area can be determined effectively. It will provide an accurate basis for the delineation of combinational anomalies. Through verification, the combination of anomalies corresponds well with geological and mineralogical characteristics. 3 new copper mineralization points and 1 lead zinc deposit points have been found. It will point out the direction for next exploration work.