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| Geotectonic Framework and Metallogenic System in the South Margin of North China Paleocontinent |
| ZHANG Zheng-wei1, ZHANG Zhong-shan1,2 |
1. State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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Abstract According to the tectonic characteristics of the research area in the south margin of North China paleocontinent,the geotectonic framework of the area could be divided into the Huashan-Xong'er mountains continental margin belt,the Kuanping Late Proterozoic accretion belt,the Erlangping margin basins zone,the Qinling dispersion type island arc terrain,and the sedimentary basins of Nanqinling zone.In the light of sediment build evolution stage and metallogenesis,these could be classified as follows: the sediment build in the active south margin of North China Paleocontinent in the pro-Mesoproterozoic,the sediment build in the passive continent margin in the Middle-Late Proterozoic,the sediment build in the coveres type continent margin in the early Paleozoic,the sediment build in the active margin in the Paleozoic and the phase of collision in the Mesozoic.According to the characteristics of tectonic evolution stage and metallogenesis with the research area in the eastern Qinling,these meallogenic system could be classified as follows: 1) the metallogenic system in the active south margin of North China Paleocontinent in the pro-Mesoproterozoic;2) the metallohenic system in the anactive continent margin in the Middle-Late proterozoic;3) the metallogenic system in the coverse type continent margin in the early Paleozoic;4) the metallogenic system in the active margin in the Paleozoic;5) the metallogenic system in the collision margin in the Mesozoic.
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Received: 20 May 2008
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XU Yi-gang, ZHONG Yu-ting, WEI Xun, CHEN Jun, LIU Hai-quan, XIE Wei, LUO Zhen-yu, LI Hong-yan, HE Bin, HUANG Xiao-long, WANG Yan, CHEN Yun. Permian Mantle Plumes and Earth's Surface System Evolution[J]. Acta Metallurgica Sinica, 2017, 36(3): 359-373. |
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