云南绿春牛尼老白铅锌多金属矿区土壤次生晕及找矿远景分析

摘要

Niunilaobai working area of Lvchun lies in Lvchun fold belt which is located at the eastern rim of southern section of Lanping-Simao hollow zone.Geochemical background elements such as As,Hg,Pb,Zn, Sb,Bi,Au and Cu appear to be enriched in this area.Through multivariate statistical analysis of 2144 pieces of geochemical samples from this area,the author believes that multi-element anomalies mainly distribute a-long NW and NE faults while Pb-Zn anomalies distribute along fault F1 and Au anomalies along fault F2 .The author also proposes that the most beneficial prospecting zone includes one Pb-Zn deposit,three Au deposits and one Cu deposit.%绿春县牛尼老白工作区位于兰坪―思茅凹陷带南段东缘之绿春褶皱带内,地球化学背景 As、Hg、Pb、Zn、Sb、Bi、Au、Cu 等元素在该区地层中具有明显的富集趋势。本文通过对该区2144个化探样品进行多元统计分析,认为多元素异常主要沿 NW、NE 向断裂展布,有规模的 Zn、Pb 异常主要沿 F1断裂带分布,Au 异常沿 F2断裂带分布；且指出了1个铅锌矿、3个金矿、1个铜矿的最有利找矿远景区。