西藏谢通门县斯弄多铅锌矿区构造地球化学找矿研究

Study on tectonic geochemistry prospection of Sinongduo lead-zinc mining area in Xietongmen country,Tibet

文章通过对西藏谢通门县斯弄多铅锌矿区1:10000地质填图和1:10000构造地球化学测量,系统总结了矿区构造地球化学特征,并得出以下几点认识:矿区不同岩性中Ag、Pb、As、Sb、Bi浓度克拉克值和变异系数均较大,元素分布型式具对数双峰分布,表明这些元素卷入了成矿作用;因子分析显示成矿具多阶段性,矿区主成矿元素组合为Pb、Zn、Mn,可作为找矿的指示元素;综合分析地质和地球化学资料,在矿区圈定4个构造地球化学异常区,其中Ⅰ号、Ⅱ号异常具较好的找矿前景。

The tectonic geochemistry characteristics of Sinongduo lead-zinc mining area in the Xietongmen country, Tibet have been systematically summarized through the geological mapping and tectonic geochemis- try survey in a scale of 1：10000 in this paper. Both concentration clarke and variation coefficient of Ag, Pb, As, Sb, Bi in different lithology are high, which indicates that these elements have been involved in minerali- zation. The factor analysis shows the mineralization has multi-stages. The main metallogenic elements asso- ciation is Pb, Zn, Mn which can be used as the indicator elements for prospecting. Four tectonic geochemis- try anomaly belt have been delineated based on the geological and geochemical analysis, and among them Ⅰ and Ⅱ anomaly belt have the better prospecting potential