内蒙古哈达特陶勒盖铅锌银多金属矿成矿地质特征及其成因  

Metallogenic Characteristics and Its Origin of the Hadatetaolegai Pb-Zn-Ag Polymetallic Deposit of Inner Mongolia

作　　者：贡二辰 晁代超 张喜周 聂飞[2] 

机构地区：[1]河南省有色金属地质矿产局第七地质大队,河南郑州450016 [2]中国地质大学地球科学与资源学院,北京100083

出　　处：《现代地质》2013年第2期324-331,共8页Geoscience

基　　金：长江学者和创新团队发展计划项目(IRT1083);国家自然科学重点基金项目(90914002)

摘　　要：论述总结了内蒙古哈达特陶勒盖铅锌银多金属矿区的矿床特征,分析了区域地层、构造、岩浆活动与铅锌银多金属矿的关系。通过对矿体氢、氧、铅、硫等同位素的研究,认为成矿流体早期主要以岩浆水为主,后期混入了较多大气降水;该矿床成矿作用早期阶段形成的硫化物,其物质来源与深源岩浆热液活动有关,而中期和晚期阶段产出的硫化物是岩浆热液对容矿围岩进行蚀变交代或与大气降水相混合的产物,银、铅、锌成矿作用是燕山期构造-岩浆活动的重要组成部分,是中酸性岩浆作用的继续和发展,该矿床属中高温热液充填交代型矿床。This paper summarizes the features of the Hadatetaolegai Pb-Zn-Ag polymetallic deposit of Inner Mongolia and analyses the relationship between the regional strata, structures, magma activities and Pb-Zn-Ag minera-lization. The isotopic studies on the H, O, Pb and S in the ore bodies show that the metallogenic fluids derived mainly from magma in early stage and mixed with some meteoric water in late stage. The sulfides formed in early metallogenic stage were related to deep-seated magmatic activities and the one in middle to late stages generated by reaction between magmatic fluids and host rocks or produced by mixture between magmatic fluids and meteoric water. The metallogenic processes of silver, lead and zinc as an important component in Yanshanian tectonic-magmatic activity is the production of mediate to acid magmatic activities. It is a hypotherreal filling and metasomie type of deposit at middle to high temperature condition.

关 键 词：哈达特陶勒盖 铅锌银多金属矿床 成矿地质特征 成因 内蒙古 

分 类 号：P618.4[天文地球—矿床学] P618.5[天文地球—地质学]