广西下巴铅锌矿床镉元素的富集规律研究

A Study on the Enrichment Law of the Dispersed Elements Cd in the Xiaba Pb-Zn Deposit, Guangxi

摘要: 本文利用电子探针和等离子质谱(ICP-MS)分析手段，对下巴铅锌矿床中镉元素的分布特征进行了分析研究，并探讨了镉元素在矿床中赋存方式。结果表明，该矿床铅锌矿化系列中镉含量超过其作为伴生有用组分的最低工业品位，矿床中镉元素主要赋存于闪锌矿之中，与闪锌矿含量成正比关系。矿区范围内镉元素由南至北呈现出高-高-低的规律，在东西方向上，呈现出低-高-低规律。

Abstract: Based on the experimental results by the electron microprobe and inductively coupled plasma mass spectrometry (ICP-MS), the analysis and research are made to the distribution characteristics of elements Cd in the Xiaba Pb-Zn deposit; also, its occurrence mode is also under discussion. The results show that, the Cd content of the Pb-Zn mineralization series of the deposit is over the minimum industrial grade of its accompanied valuable elements; the elements Cd mainly occur in the zinc blende, which are directly proportional to the zinc blende content. Besides, the elements Cd have “high-high-low” and “low-high-low” laws from south to north and from east to west throughout the deposit.