| 汉诺坝非橄榄岩类包体的化学和同位素特征 |
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| 引用本文： | 陈道公,支霞臣,李彬贤,王银喜,杨杰东.汉诺坝非橄榄岩类包体的化学和同位素特征[J].中国科学技术大学学报,1996(4). |
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| 作者姓名： | 陈道公 支霞臣 李彬贤 王银喜 杨杰东 |
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| 作者单位： | 地球空间科学系，第三世界科学院中国科技大学地球科学和天文学高级研究中心，南京大学现代分析中心 |
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| 摘 要： | 汉诺坝非橄榄岩包体主要是指辉石岩、辉长岩和麻粒岩，其主要元素、微量元素有较大和系统的变化，Ｎｄ、Ｓｒ、Ｐｂ同位素从非常亏损的ＤＭＭ源特征变至具ＥＭＩ和ＥＭＩ源趋势的富化特征．它们与寄主玄武岩及共生的橄榄岩包体无直接成因联系，有不同的形成时代并在不同的空间位置居留
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| 关 键 词： | 非橄榄岩包体，Nd、Sr、Pb同位素，微量元素，汉诺坝 |
Chemical and Isotopic Characterisics of Nonperidotite |
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| Xenoliths From HannobaChen Daogong,Zhi Xiachen,Li Binxian.Chemical and Isotopic Characterisics of Nonperidotite[J].Journal of University of Science and Technology of China,1996(4). |
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| Authors: | Xenoliths From HannobaChen Daogong Zhi Xiachen Li Binxian |
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| Institution: | Department of Earth and Space Sciences of University of Science and Technology of China and Advanced Centre of Earth Sciences and Astronomy of USTC for The Third Whorld Academy |
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| Abstract: | The nonperidotite xenoliths from Hannuoba include mainly pyroxenites,gabbros and granulites,which have large and sysematic variations in major and trace element abundances. Their Nd,Sr and Pd isotopic compositions change from quite depleted DMM source components to having EMI and EMII trend enriched source components. The nonperidotitte xenoliths have no direct correlations with host basalts and peridotite inclusions and different xenoliths have their own formation mechenisms and sites in different positions. |
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| Keywords: | nonperidotite xenolith Nd Sr and Pb isotopes trace element Hannuoba |
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