中文摘要：

内蒙古白音诺尔铅锌矿床为一大型矽卡岩型矿床。成矿作用分为两期5个阶段,包裹体显微测温研究表明：Ⅰ-1阶段主要发育气液两相包裹体（VL型）、富气相包裹体（LV型）及含Na Cl子矿物三相包裹体（SL型）。VL型包裹体均一温度变化范围为375.4℃-479.8℃,盐度为10.73%-13.73%Na Cleqv;LV型包裹体均一温度变化范围为415.2℃-458.4℃,盐度为5.32%-7.67%Na Cleqv;SL型包裹体均一温度变化范围为434.6℃-497.5℃,盐度为42.15%-45.25%Na Cleqv。Ⅰ-1阶段流体属中-高温、高盐度的不混溶Na Cl--H2O体系热液。Ⅰ--2阶段发育VL型和LV型两类包裹体,VL型包裹体均一温度的变化范围为202.3℃-345.7℃,盐度为5.17%-11.22%Na Cleqv;LV型包裹体均一温度为265.7℃-381.9℃,盐度1.98%-5.01%Na Cleqv。Ⅰ--2阶段流体性质为中温、中等盐度的不均匀Na Cl--H2O体系热液。Ⅱ--2阶段（主成矿阶段）主要发育VL型包裹体,均一温度分布于165.9℃-258.7℃,盐度为0.83%-5.62%Na Cleqv,说明流体性质为中--低温、低盐度的均一Na Cl--H2O体系热液。在流体由中--高温、高盐度不均匀Na Cl--H2O体系向中--低温、低盐度的均一Na Cl--H2O体系热液演化的过程中,金属元素逐渐富集并最终形成矿床。包裹体中碳氢氧同位素的研究证明早期流体来源以岩浆水为主,并有少量大气降水的参与;而晚期流体来源主要为大气降水。

英文摘要：

The Baiyinnuo＇er Pb--Zn mineral deposit is a large skarn-type deposit. The mineralization is in two periods and five stages. The research on fluid inclusion micro-thermometry indicates that in the stage Ⅰ-1 are mainly developed the aqueous two-phase inclusions,vapor-rich inclusions and Na Cl daughter mineral-bearing threephase fluid inclusions. The homogenization temperatures of aqueous two-phase fluid inclusions range from 375. 4 ℃to 479. 8 ℃,and the salinity varies from 10. 73% to 13. 73% Na Cleqv. The homogenization temperatures of vaporrich fluid inclusions range from 415. 2℃ to 458. 4℃,and the salinity varies from 5. 32% to 7. 67% Na Cleqv. The homogenization temperatures of Na Cl daughter mineral-bearing three-phase fluid inclusions range from 434. 6℃ to497. 5℃,and the salinity varies from 42. 15% to 45. 25% Na Cleqv. The fluid inclusions of stage Ⅰ-1 belong to the immiscible Na Cl- H2 O hydrothermal system with medium-high temperature and high salinity. Stage Ⅰ-2 mainly develops two types of fluid inclusions. The homogenization temperatures of aqueous two-phase fluid inclusions range from 202. 3 ℃ to 345. 7 ℃,and the salinity varies from 5. 17% to 11. 22% Na Cleqv. The homogenization temperatures of aqueous two-phase fluid inclusions range from 265. 7℃ to 381. 9℃,and the salinity varies from1. 98% to 5. 01 Na Cleqv. The fluid inclusions of stage Ⅰ-2 belong to the immiscible Na Cl- H2 O hydrothermal system with medium temperature and medium salinity. In the stage Ⅱ-2（ main metallogenic stage） are mainly developed the aqueous two-phase fluid inclusions,in which the homogenization temperatures range from 165. 9℃ to258. 7℃,and the salinity varies from 0. 83% to 5. 62% Na Cleqv. The fact indicates that the fluid inclusions of the stage Ⅱ-2 belong to the uniform Na Cl- H2 O hydrothermal system with medium-low temperature and low salinity.In the process of the evolution from the immiscible Na Cl- H2 O hydrothermal system with medium-high temperature and high salinity to t