摘要
通过在老挝巴乌地区开展1∶50 000水系沉积物测量,测试分析了Cu、Co、Ni、Fe、Au、Ag、Pb、Zn、As、Sb、Hg、Mo、W、Sn等元素。首先初步总结了区内元素地球化学特征,认为As、Sb、Hg、Au等元素富集、变异系数较大,在测区内地质、地球化学作用强烈,元素迁移、富集特征明显,是区内最重要的成矿(指示)元素;然后引入数理统计原理对元素测试数据进行相关性分析、聚类分析以及因子分析,阐述了区内元素的亲疏关系及分异趋势;最后根据元素地球化学特征,圈定元素综合异常23个,对区内主要异常HS-8、HS-15的地质、地球化学特征进行了详细评述,并据此优选出B.Houaysapeu、比佛艾-摩仲找、怀康-旺勒等3处最有利的金多金属找矿靶区。上述研究结果对于区内进一步开展找矿工作具有一定的参考价值。
The elements of Cu,Co,Ni,Fe,Au,Ag,Pb,Zn,As,Sb,Hg,Mo,W,Sn are tested and analyzed by conducting the 1∶50 000 stream sediment survey in Bawu area of Laos. Firstly,the geochemical characteristics of the elements in the re-search area are summarized preliminarily. The results show that,the enrichment coefficient and variation coefficient of As,Sb, Hg,Au are higher than others,the geological and geochemical reaction of these elements in research area are strong,the ele-ment migration and enrichment phenomenon are obvious,so,As,Sb,Hg,Au are the ore-forming （ instructions） elements. Sec-ondly,the test data of the above 14 kinds of elements are conducted on correlation analysis,cluster analysis and factor analysis based on the principle of mathematical statistics so as to deeply describe the affinity-disaffinity relationship and the differentia-tion trends of the elements in the research area. Finally,according to the geochemical characteristics of the elements,23 com-prehensive anomalous areas are selected. Besides that,the 3 most advantageous gold polymetallic prospecting target areas inclu-ding B. Houaysapeu,Bifo′ai-Mozhongzhao,and Huaikang-Wangle are optimally selected based on analyzing the geological and geochemical characteristics of the main anomaly HS-8,HS-15. The above research results can provide some reference for the further prospecting work in the research area.
出处
《金属矿山》
CAS
北大核心
2015年第2期92-97,共6页
Metal Mine
基金
国外风险勘查资金项目(编号:201130A02300111)
关键词
水系沉积物测量
地球化学特征
综合异常
找矿靶区
Stream sediment survey
Geochemical characteristics
Comprehensive anomaly
Prospecting target area
