相山居隆庵矿床铀成矿流体特征及其来源探讨  

Characteristics and origin of ore-forming fluid of Julong'an uranium deposit in Xiangshan uranium orefield

作　　者：邱林飞[1] 欧光习[1] 张敏[1] 张建锋[1] 

机构地区：[1]核工业北京地质研究院,北京100029

出　　处：《矿床地质》2012年第2期271-281,共11页Mineral Deposits

摘　　要：通过居隆庵矿床流体包裹体岩相学、显微测温学、单个流体包裹体激光拉曼成分及群体包裹体成分的对比研究,查明了成矿流体的基本性质(温度、盐度及成分等);根据成矿流体的碳、氢、氧等稳定同位素特征,并结合矿床的地质-构造特征,探讨了成矿流体的来源。研究表明,居隆庵矿床铀成矿流体为富含成矿物质及挥发分(CO2、H2、CH4等)的中-高温、中-高盐度流体,其成分以C、H、O、N等为主,并溶有多种碱金属、P及卤素(F、Cl)等微量组分的C-H-O流体,成矿流体具有深源(幔源)性的特点。On the basis of field survey,comparative study of petrography,microthermometry,Laser Raman ingredient and gas chromatogram ingredient of fluid inclusions,the authors found out the basic characteristics（temperature,salinity,ingredients etc.）of the ore-forming fluids in the Julong＇an uranium deposit.According to the compositions of carbon,hydrogen and oxygen stable isotopes of ore-forming fluids in combination with the characteristics of geological structure of the Julong＇an uranium deposit,this paper investigated the origin of the ore-forming fluids.The results indicate that the ore-forming fluids were medium-to high-temperature and medium-to high-salinity fluids which were enriched with abundant ore-forming materials and volatiles such as CO2,H2 and CH4,and contained lots of such materials as alkali metals,P and halogen.The ore-forming fluids were mostly deep-derived（mantle source） fluids.

关 键 词：地球化学 成矿流体 流体包裹体 深源流体 居隆庵矿床 相山 

分 类 号：P619.14[天文地球—矿床学]