式可布台铁矿床稀土和微量元素地球化学特征  

Geological Characteristics of REE and Trace Elements Compositions of Shikebutai Iron Deposit in Xinjiang

作　　者：刘学良[1] 弓小平[1] 韩琼[1] 吴天伟[2] 张燕波[1] 木合塔尔.扎日 尹得功[3] 

机构地区：[1]新疆大学,新疆乌鲁木齐830046 [2]四川省地质矿产勘查开发局化探队,四川德阳618000 [3]新疆维吾尔自治区地质矿产勘查开发局第十一地质大队,新疆昌吉831100

出　　处：《新疆地质》2013年第3期206-212,共7页Xinjiang Geology

基　　金：新疆维吾尔自治区科技厅少数民族特培计划项目(No.200823119);中国地质调查局"西天山阿吾拉勒成矿带铁矿成矿条件;成矿规律与勘查示范研究"(资[2010]矿评01-03-26)项目共同资助

摘　　要：新疆式可布台铁矿是国内目前开采时间久、矿石品位高的著名富铁矿。通过对矿区岩矿体硅酸盐、稀土和微量元素等地球化学特征分析,结合野外实地观察及室内镜下分析,对矿床成矿环境、矿物成分、成矿物质来源做进一步探讨,认为其矿床成因应是海底环境与海水作用密切相关的火山喷流-热水沉积类型,可分为喷流沉积成矿、还原溢流热水沉淀和富集氧化成矿3个阶段。The Shikebutai iron ore in Xinjiang is one afamous high-grad iron ore with long-mining time and high-grad at present. Through the study on silicate,REE and trace elements of ore body in mine rock, combined with site observa- tion outdoor and microscopic analy indoor, this article discussed the metallogenic environment . mineral composition, source of ore-forming materials of the deposit deeply.and believed that genesis of ore deposit should be volcanic jet-hot water deposit type closely associated with the action of seawater in the undersea environment, having more detailed un- derstanding of the metallogenic process, concretely dividing three stages： spray-flow deposits metallogenic, restore over- flow hot water precipitation, enriched oxidation metallogenic.

关 键 词：西天山 地球化学特征 式可布台铁矿 稀土元素 微量元素 

分 类 号：P618.31[天文地球—矿床学] P595[天文地球—地质学]