| 贵州从江九星铁矿床赋矿变质围岩地球化学特征及其地质意义 |
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| 引用本文： | 于润涛,何明勤,何卫军,马思根,王博.贵州从江九星铁矿床赋矿变质围岩地球化学特征及其地质意义[J].矿物岩石地球化学通报,2019(1):159-168. |
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| 作者姓名： | 于润涛 何明勤 何卫军 马思根 王博 |
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| 作者单位： | 贵州大学资源与环境工程学院;贵州省地质矿产资源开发股份有限公司;贵州财经大学信息学院 |
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| 基金项目： | 国家自然科学基金项目(41563003;41602079) |
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| 摘 要： | 为探讨九星铁矿床的成矿与围岩(赋矿地层)的关系,系统采集了九星铁矿床赋矿变质围岩(绿泥石片岩和绿泥石千枚岩)样品进行元素地球化学分析。结果表明,两类赋矿变质围岩有如下特点:高硅铝、富钾镁且碱质总量偏低;富集大离子亲石元素,亏损高场强元素;轻稀土相对富集,重稀土相对亏损,轻重稀土分馏明显,具有Eu负异常与弱Ce正异常。赋矿变质围岩的原岩为铁质泥岩及纯泥质岩,沉积原岩物源主要为酸性火山岩区的长英质物源或长英质与基性岩混合物源,构造背景为被动大陆边缘。稀土元素示踪结果显示九星铁矿床磁铁矿与围岩稀土元素配分特征基本一致,综合分析认为九星铁矿床的成矿物质主要来源于围岩(赋矿地层)。
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| 关 键 词： | 赋矿变质围岩 元素地球化学 变质岩原岩恢复 成矿物质来源 九星铁矿床 |
Geochemical Characteristics of Ore Hosted Metamorphic Wall Rock in Jiuxing Fe Deposit,Congjiang County,Guizhou Provice and its Geological Implications |
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| YU Run-tao,HE Ming-qin,HE Wei-jun,MA Si-gen,WANG Bo.Geochemical Characteristics of Ore Hosted Metamorphic Wall Rock in Jiuxing Fe Deposit,Congjiang County,Guizhou Provice and its Geological Implications[J].Bulletin of Mineralogy Petrology and Geochemistry,2019(1):159-168. |
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| Authors: | YU Run-tao HE Ming-qin HE Wei-jun MA Si-gen WANG Bo |
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| Institution: | (Resources and Environmental Engineering College of Guizhou University,Guiyang 550025,China;Guizhou Geology and Mineral Development Co.Ltd,Guiyang 550004,China;Informatics School of Guizhou University of Finance and Economics,Guiyang 550025,China) |
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| Abstract: | YU Run-tao;HE Ming-qin;HE Wei-jun;MA Si-gen;WANG Bo(Resources and Environmental Engineering College of Guizhou University,Guiyang 550025,China;Guizhou Geology and Mineral Development Co.Ltd,Guiyang 550004,China;Informatics School of Guizhou University of Finance and Economics,Guiyang 550025,China) |
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| Keywords: | ore hosted metamorphic wall rock element geochemistry metamorphic rock resume source of ore-forming materials Jiuxing Fe deposit |
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