独立分量分析在地球化学异常圈定中的应用

摘要

地球化学成矿元素的组合特征对于研究矿床赋存位置有着意义重大,应用独立分量分析理论来解决地球化学成矿元素组合的定量求取问题,分别建立FastICA和JADE模型,经过对实际矿区资料的处理分析,得到的组合异常图与各单元素的异常情况套合情况较好,这为后期的异常评价和解释提供了重要依据.%The combination features of geochemical ore-forming elements are of great significance to the study of ore occurrence locations. This paper applies the theory of independent component analysis to solve the problem of geochemical data processing by builded the FastICA and JADE models. The results gained from the process and analyses of the actual mining dada are fairly good, with the combination anomaly diagram fitting the abnormal conditions of every element, which provides the important basis for the subsequent anomaly evaluation and interpretation.