| 大陆地壳中元素地球化学分异指数排序模式 |
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| 引用本文： | 岑况,陈媛.大陆地壳中元素地球化学分异指数排序模式[J].地学前缘,2011,18(1):56-62. |
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| 作者姓名： | 岑况 陈媛 |
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| 作者单位： | 地质过程与矿产资源国家重点实验室中国地质大学(北京)地球科学与资源学院; |
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| 基金项目： | 地质过程与矿产资源国家重点实验室项目 |
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| 摘 要： | 深入分析了元素相容性、元素两相间的分配系数与壳幔元素地球化学分异间的关系,建立壳幔元素地球化学分异模型,提出不相容元素在地壳富集与壳幔岩石部分熔融过程相关的观点.收集并整理了原始地幔、地壳各层圈60余种元素的平均化学成分.以壳幔元素的地球化学分异理论模型为依据,计算得到壳幔元素地球化学分异强度指数,并分析了元素分异指数...
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| 关 键 词： | 壳幔元素分异 理论模型 分异强度序列 亲地壳元素 亲地幔元素 |
The ordering mode of geochemical differentiation index of elements in continental crust |
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| Cen Kuang,Chen Yuan.The ordering mode of geochemical differentiation index of elements in continental crust[J].Earth Science Frontiers,2011,18(1):56-62. |
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| Authors: | Cen Kuang Chen Yuan |
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| Institution: | Cen Kuang,Chen Yuan State Key Laboratory of Geological Processes and Mineral Resources,School of Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,Chin |
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| Abstract: | This paper analyzes the compatibility of elements and the correlation between element partition coefficient in two phases and geochemical differentiation of elements in crust and mantle.On the basis of predecessors' research,a geochemical differentiation model of elements in crust and mantle is developed,and the relationship between enrichment mechanism of numerous incompatible elements in the crust and the process of partial melting of rocks is proposed.We collected and collated average chemical compositio... |
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| Keywords: | differentiation of crust and mantle elements theoretical model differentiation intensity sequence crustphilic elements mantlephilic elements |
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