| Time range of Mesozoic tectonic regime inversion in eastern North China Block |
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| 作者姓名： | ZHAI Mingguo ZHU Rixiang LIU Jianming MENG Qingren HOU Quanlin HU Shengbiao LIU Wei LI Zhong ZHANG Hongfu & ZHANG Huafeng
Key Laboratory of Mineral Resources Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Correspondence should be addressed to Zhai Mingguo |
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| 基金项目： | 中国科学院资助项目，科技部资助项目，国家自然科学基金 |
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| 摘 要： | An important tectonic inversion took place in eastern North China Block(NCB) during Mesozoic, which caused a great lithosphere thinning, reconstruction of basin-range series, powerful interaction between mantle and crust, a vast granitic intrusion and volcanism, and large-scale metallogenic explosion. The time range of the Mesozoic tectonic regime inversion in the eastern North China Block is one of the key issues to understand mechanism of tectonic regime inversion. Our updated results for recognizing the time range are mainly obtained from the following aspects: structural analyses along northern and southern margins of the NCB and within the NCB for revealing tectonic inversion from compression to extension and structural striking from -EW to NNE; geothermic analyses of the eastern sedimental basins for a great change of thermal history and regime; basin analysis for basin inversion from compression to extension and basin migration from -EW to NNE; petrological and geochemical studies of volcanic roc
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| 收稿时间： | 2 July 2003 |
Time range of Mesozoic tectonic regime inversion in eastern North China Block |
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| ZHAI Mingguo,ZHU Rixiang,LIU Jianming,MENG Qingren,HOU Quanlin,HU Shengbiao,LIU Wei,LI Zhong,ZHANG Hongfu & ZHANG Huafeng
Key Laboratory of Mineral Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing ,China Correspondence should be addressed to Zhai Mingguo.Time range of Mesozoic tectonic regime inversion in eastern North China Block[J].Science in China(Earth Sciences),2004,47(2):151-159. |
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| Authors: | ZHAI Mingguo ZHU Rixiang LIU Jianming Meng Qingren HOU Quanlin HU Shengbiao LIU Wei LI Zhong ZHANG Hongfu Zhang Huafeng |
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| Institution: | Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | An important tectonic inversion took place in eastern North China Block(NCB) during Mesozoic, which caused a great lithosphere thinning, reconstruction of basin-range series, powerful interaction between mantle and crust, a vast granitic intrusion and volcanism, and large-scale metallogenic explosion. The time range of the Mesozoic tectonic regime inversion in the eastern North China Block is one of the key issues to understand mechanism of tectonic regime inversion. Our updated results for recognizing the time range are mainly obtained from the following aspects: structural analyses along northern and southern margins of the NCB and within the NCB for revealing tectonic inversion from compression to extension and structural striking from -EW to NNE; geothermic analyses of the eastern sedimental basins for a great change of thermal history and regime; basin analysis for basin inversion from compression to extension and basin migration from -EW to NNE; petrological and geochemical studies of volcanic rocks and lowermost crust xenoliths for recognizing peak period of mantle upwelling and intense interaction between mantle and crust, and main metallogenic epoch. All the studies of the above give the same time range from-150-140 Ma to -110-100Ma, peaking at -120 Ma. |
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| Keywords: | eastern NCB Mesozoic tectonic regime inversion time range |
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