| 北淮阳富碱侵入岩带Pb同位素研究 |
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| 引用本文： | 周泰禧 李学明. 北淮阳富碱侵入岩带Pb同位素研究[J]. 中国科学技术大学学报, 1995, 25(4): 467-473 |
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| 作者姓名： | 周泰禧 李学明 |
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| 作者单位： | Department of Earth and Space Sciences，Aduanced Centre for Earth Sciences and Astronomy |
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| 摘 要： | 北淮阳富碱侵入岩带中的中、基性岩Ｐｂ、Ｓｒ，Ｎｄ同位素分析结果及本区已发表的磁性和酸性岩的有关成果表明，它们是由最少地壳混染端元、年轻地壳端元和古老地壳端元混合而成．本研究指出了北淮阳Ｐｂ同位素省侵入岩Ｐｂ、Ｓｒ、Ｎｄ同位素特征的地球化学含义．
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| 关 键 词： | 北淮阳富碱侵入岩带，混合作用，Pb同位素，Sr、Nd同位素 |
A Lead Isotopic Study of Alkali Intrusion in Beihuaiyang Region |
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| Zhou Taixi,Li Xueming,Zhang Xun,Wei Gangjian,Pan Guoming,Chen Jiangfeng. A Lead Isotopic Study of Alkali Intrusion in Beihuaiyang Region[J]. Journal of University of Science and Technology of China, 1995, 25(4): 467-473 |
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| Authors: | Zhou Taixi Li Xueming Zhang Xun Wei Gangjian Pan Guoming Chen Jiangfeng |
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| Abstract: | New Pb,Nd and Sr isotope results of intermediate and mafic intrusive rocks from Beihuiyang were reported.These results together with early published data of alkali and granitic intrusions suggest that there are three components for intrusions of this group:least crust contaminated component represented by mafic members of the group,young crust component and old crust component.Our model provides a deeper understanding of Pb,Nd and Sr isotopic characteristics of intrusions from Beihuaiyang Pb Isotopci Province. |
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| Keywords: | Bei huaiyang alkati intrusions Mixing Pb isotope Sr Nd isotope |
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