内蒙古索家沟银铅锌矿床伴生稀散金属镉、镓的富集特征研究

Enrichment characteristics of associated rare metal Cd and Ga in Suojiagou Ag-Pb-Zn deposit in Inner Mongolia

内蒙古索家沟银铅锌矿床是近年来在内蒙古中部玄武岩覆盖区发现的隐伏大型矿床,估算银金属量1400t,铅+锌金属量28万吨,矿床中富含Cd、Ga等稀散金属,且达到了综合利用工业价值要求。通过对Cd、Ga含量与主成矿元素Ag、Pb、Zn含量进行相关性分析及纵向不同高程含量对比,表明矿石中Ga与Zn的相关活跃性要高于Pb、Ag,Cd与Zn表现出强烈的正相关性,即Zn与Cd、Ga具有较好的共生关系;总体上矿床中稀散金属Cd、Ga分布相对均匀,在1200m高程以下硫化矿中,呈现稳定富集的特征,显示出较好的稀散金属镉、镓资源前景。本次研究对矿床进一步勘查及将来矿石选冶回收Cd、Ga具有指导意义,同时为同区域类似矿床稀散金属研究提供参考,并引起周边类似矿山对于稀散金属元素回收利用的重视。

Suojiagou Ag-Pb-Zn deposit in Inner Mongolia is a large concealed deposit discovered in the basalt coverage area of Central Inner Mongolia in recent yearsI.tisestimatedforsilvermetalof1400tons,and lead+zinc metal of280000tons.Suojiagou deposit is rich in Cd,Ga and other rare metals,and meets the comprehensive utilization requirement of industrial value.Through the correlation analysis of Cd,Ga contents and the main ore-forming element Ag,Pb,Zn contents and the vertical comparison of different elevation content,it is shown that the correlation activity of Ga and Zn in ore is higher than that of Pb,Ag.Cd and Zn show a strong positive correlation,Zn has a good symbiotic relationship with Cd,Ga.On the whole,the distribution of rare metal Cd and Ga in the deposit is relatively uniform.The sulfide ore below the elevation of 1200mis characterized by stable enrichment,indicating agood prospective of rare metal cadmium and gallium resources.There is a guiding significance for the study in further exploration of the deposit and ore processing and smelting recoveryofCdandGainthefutureI.talsoprovides a reference for research on rare metals in similar deposits in the same area,and causes similar mines around to attach importance to the recovery and utilization of rare metal elements.