贵州天桥铅锌矿床REE地球化学特征

Geochemical Characteristics of Rare-Earth Elements in the Tianqiao Pb-Zn Deposit,Guizhou Province,China

稀土元素是示踪成矿流体来源的有效手段之一。利用电感耦合等离子体质谱(ICP-MS)对贵州天桥铅锌矿床成矿期方解石REE含量进行了分析。结合前人发表的峨眉山玄武岩、辉绿岩、矿石、硫化物、蚀变围岩、地层碳酸盐岩及地层中黄铁矿的REE数据,探讨了天桥铅锌矿床REE地球化学特征及其对成矿流体来源的指示意义。

The rare earth elements （REE） are known to be a power tool for understanding the origin of the ore-form- ing fluids. The REE in hydrothermal calcites from Tianqiao Pb-Zn deposit, Guizhou Province, China were analyzed by using inductively coupled plasma mass spectrometry （ICP-MS） in this study. The geochemical characteristics and the source of this ore deposit were studied with the REE data of hydrothermal calcites and the previous reported REE data of Emeishan basalts, diabases, Pb-Zn ores, sulfides, altered carbonates, dolostones and stratum pyrites from Lower Carboniferous Datang formation （Cid） in this paper.