层间氧化带分散元素铼与硒的超常富集机制探讨——以伊犁盆地扎吉斯坦层间氧化带砂岩型铀矿床为例  

Super-enriching Mechanism of Disperse-elements Re and Se in Interlayer Oxidation——A Case Study of the Zhajistan Interlayer Oxidation Zone Sandstone-type Uranium Deposit, Ili Basin, Xinjiang

作　　者：王正其[1] 潘家永[1,2] 曹双林[1] 管太阳[1] 张国玉[1] 

机构地区：[1]东华理工学院 [2]南京大学地球科学系,210093

出　　处：《地质论评》2006年第3期358-362,共5页Geological Review

基　　金：国家重点基础研究发展规划项目(973)(编号2001CB0988);核工业地质局科学研究基金资助项目的成果。

摘　　要：本文以伊犁盆地扎吉斯坦层间氧化带砂岩型铀矿床为例,阐述了其中分散元素Re与Se的超常富集规律。研究表明分散元素Re与Se在空间上与砂岩U矿体密切共生,但其超常富集又具有独立性;在矿源等条件具备的情况下,层间氧化作用可以促使分散元素Re与Se超常富集并独立成矿,是一种潜在的分散元素成矿新机制。The study of Zhajistan interlayer oxidation zone sandstone-type uranium ore deposit, Ili Basin, Xinjiang Uygur Autonomous Region, shows super-enriching of disperse-elements （Re, Se）, coexisting within uranium ore-bodies. It is concluded that, although disperse-elements is characterized by associated with uranium ore- bodies in spatial, super-richening of disperse-elements have relative independence in interlayer oxidation. When conditions, such as original metallogenetic resources are suitable, interlayer oxidation can make super-richening of disperse-elements and form independent mineralization. Interlayer oxidation is a new type of potential metallogenetic mechanism of disperse-elements.

关 键 词：分散元素 Re Se 超常富集 层间氧化作用 砂岩型铀矿 伊犁盆地 新疆 

分 类 号：P619.14[天文地球—矿床学] P618.7[天文地球—地质学]