| La-Ce同位素体系应用现状和研究进展 |
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| 引用本文： | 高永娟,凌文黎,邱啸飞,陈子万,白秀娟.La-Ce同位素体系应用现状和研究进展[J].地球科学,2011,36(1):33-42,52. |
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| 作者姓名： | 高永娟 凌文黎 邱啸飞 陈子万 白秀娟 |
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| 作者单位： | 中国地质大学地质过程与矿产资源国家重点实验室;成都地质矿产研究所;中国地质大学地球科学学院; |
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| 基金项目： | 国家自然科学基金项目(Nos.40673025,40873017) |
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| 摘 要： | 铈在自然界中属变价元素,可导致地质样品La-Ce与Sm-Nd同位素体系之间发生脱偶现象.除了在同位索年代学中的应用外,放射成因Ce同位素地球化学在地壳物质再循环示踪、地球表层演化过程中的氧化一还原事件和成矿作用等研究领域具有独特优势.总结了La-Ce同位索体系目前的应用现状及其尚存在的问题.并对实验技术与应用的发展趋势...
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| 关 键 词： | La-Ce同位素体系 新化学流程 USGS标样 地球化学 |
La-Ce Isotopic System:Application Status and Advances |
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| GAO Yong-juan,LING Wen-li,QIU Xiao-fei,CHEN Zi-wan,BAI Xiu-juan.La-Ce Isotopic System:Application Status and Advances[J].Earth Science-Journal of China University of Geosciences,2011,36(1):33-42,52. |
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| Authors: | GAO Yong-juan LING Wen-li QIU Xiao-fei CHEN Zi-wan BAI Xiu-juan |
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| Institution: | GAO Yong-juan1,2,LING Wen-li1,3,QIU Xiao-fei1,CHEN Zi-wan1,BAI Xiu-juan1,3 1.State Key Laboratory of Geological Progresses and Mineral Resources,China University of Geosciences,Wuhan 430074,China 2.Chengdu Institute of Geology and Mineral Resource,Chengdu 610081,China 3.Faculty of Earth Sciences,China |
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| Abstract: | Element Ce shows variable valences in the nature,which accounts for the decoupling between La-Ce and Sm-Nd isotopic system. In addition to a radiometric application,the La-Ce system thus sheds new light on a set of studies such as crust recycling in mantle components,oxidation events during outer sphere evolution of the Earth and metallogenesis. This paper consists of two parts. The first part summarizes the application status of the La-Ce system,its analytical problem faced as well as developing trends in ... |
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| Keywords: | La-Ce isotopic system new chemical procedure USGS standards geochemistry |
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