红石泉铀矿床矿化特征及成因类型探讨

红石泉铀矿床位于古元古代基底褶皱带内侵入到龙首山群上部地层中的伟晶状钾质花岗岩中，矿床中铀的存在形式主要为晶质铀矿，其次为沥青铀矿、残余铀黑。通过化学全分析及相关矩阵分析得出，与铀正相关性较大的有P2O5、TiO2、MgO、Fe2O3、MnO、T失。采用三阶段规模式方法得出成矿年代复相关系数为0．9999，表明成矿与成岩时代接近，属于吕梁运动时期产物。黑云母化阶段是主要的矿化阶段，黑云母中能见到附生锆石包裹体及流线状的包裹体，结合成岩阶段（混合岩化主期）和黑云母化以后的矿化阶段，矿床成因应为与混合岩化有关的多阶段交代热液矿床，从矿床的形成过程可以看出，铀的来源主要由深部熔浆和钾硅质溶液带来。

Discussion on Characteristics and Genesis Type of Hongshiquan Uranium Deposit

Hongshiquan uranium deposit is located in pegmatitic kali granite which intruded upside strata of Longshoushan group in Lower Proterozoic basement fold zone.The existence of uraninite is mainly uraninite,secondly pitch blende and residual uranium black.By chemic full analysis and correlation matrix analysis,P₂O₅、TiO₂、MgO、Fe₂O₃、MnO、Tignition loss are greater positive relativity to uranium.Multiple correlation coefficient of metallogenic age is 0. 9999 by three phase model,which indicates the metallogeny close to diagenism era,belongs to the product of Lvliang movement.Biotitization is primary mineralization phase,there are zircon and clipper built inclusions in biotite.The deposit genesis should be multiphase replacement hydrothermal deposit that concerns with migmatitization in combine diagenism phase migmatitization and mineralization phase.According to formation process of deposit,the uranium source mostly comes from deep lava and siliceous kaliceous solution.