双滑江铀矿床低温热液铀酰矿物富集成矿作用

Mineralization enrichment of uranyl mineral in mid-low temperature hydrothermal of Shuanghuajiang uranium deposit

根据野外观察和矿物的X射线粉晶分析、电子探针分析、背散射电子图像分析对双滑江铀矿床的工业矿物——铀酰矿物进行矿物学研究,划分了铀酰磷酸盐和铀酰硅酸盐两类矿物,并探讨了这两类矿物的形成条件。认为该铀矿床以低温热液成因为主,次生后成改造为辅,由此建立了相应的成矿模式。

Based on field examination and mineral study by X-ray powder diffractlon, electronic probe and back scatter electronic image, uranium mineral in Shuanghuajiang uranium deposit are analyzed and the mineral are divided into two classes： uranyl phosphate and uranyl silicate. After studying the forming condition of these uranylminerals, the deposit fall into low tempreture hydrothermal genesis. The metallogenic model is hence established.