石人嶂钨矿床云英岩型矿化及其研究意义

石人嶂石英脉型钨矿脉旁侧的云英岩有很强的多金属矿化。通过电子探针和扫描电镜能谱分析发现,云英岩中银平均含量为309.22×10-6,达到了综合利用的伴生银品位要求,Mo、Cu、Sn等元素含量也很高;云英岩中放射性元素含量U(24.14×10-6),Th(46.30×10-6)]远大于花岗岩和石英脉中放射性元素的含量,呈现出了放射性元素富集的现象;云英岩的刻槽取样分析,进一步说明了云英岩化对矿化的重要作用。

Mineralization of greisen and its research significance in Shirenzhang Tungsten Deposit

Using classified tailings and C powder as experimental material, experiments of size analysis, sedimentation test, bleeding test, slump test with the grades tailings are completed. It can be concluded that the tailings are coarse and belongs to bad gradation. The cement-sand ratio and concentration is positively correlated with the performance of water holding of filling slurry. Through the rheological experiments and fitting the yield stress, plastic viscosity with the change of cement-sand ratio to get the growth model which are basically consistent with the law of exponential function. The cement-sand ratio and concentration is positively correlated with yield stress, concentration is positively correlated with plastic viscosity and cement-sand ratio is negatively correlated with plastic viscosity. The result of this study has real significance for guiding design of filling engineering system, adjusting ratio of filling material, and determining parameters of pipeline transport.