新疆塔里木盆地西南缘塔木铅锌矿床石管状构造特征与成因  

Characteristics and genesis of ore tube structure of Tamu zinc-lead deposit, southwest margin of Tarim Basin, Xinjiang.

作　　者：杨向荣[1,2,3] 彭建堂[1] 胡瑞忠[1] 戚华文[1] 刘燊[1] 

机构地区：[1]中国科学院地球化学研究所,矿床地球化学国家重点实验室 [2]新疆大学地质与勘查工程学院,乌鲁木齐830049 [3]中国科学院研究生院,北京100049

出　　处：《岩石学报》2009年第4期977-983,共7页Acta Petrologica Sinica

基　　金：中科院创新项目(KZCX2-YW-107-6);国家科技支撑计划项目(2006BAB07B04-04)资助

摘　　要：通过对塔木铅锌矿手标本和显微镜下光薄片的观察,矿石管状构造特征尤其是闪锌矿等硫化物分布形成的轴对称性管脉,为溶蚀-交代和空隙充填作用的产物,表现为硫化物沉淀伴随白云岩化灰岩溶解而发生,暗示硫化物与溶蚀-交代及孔洞充填这两个过程有关。脉动成矿流体运动成了更为复杂的轴对称性管脉。Based on the observation of hand specimens and microscopic scale section samples, the tube structure ores show axissymmetric characteristics in Tamu zinc-lead deposit. This structure is resulted from dissolution and metasomatism, which reflect the sulfide mineralization ( sphalerite) and dissolution ( dolostone Ⅰ) are contemporaneous and indicate mineralization relates to two processes dissolution-metasomatism and cavity filling. Moreover, the pulse-styled fluid movement induces the more complex axissymmetric tubes.

关 键 词：管状构造 成因 塔木铅锌矿 塔里木盆地 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]