| 扬子板块西缘早元古代俯冲体系的地球化学证据—有关变基性岩的微量元素地球化学研究 |
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| 引用本文： | 张鸿翔,刘丛强,徐志方,黄智龙.扬子板块西缘早元古代俯冲体系的地球化学证据—有关变基性岩的微量元素地球化学研究[J].矿物学报,2001,21(2):231-238. |
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| 作者姓名： | 张鸿翔 刘丛强 徐志方 黄智龙 |
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| 作者单位： | 1. 中国科学院地质与地球物理研究所,
2. 中国科学院地球化学研究所, |
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| 基金项目： | 国家科技部攀登计划预选项目(95-预-39) |
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| 摘 要： | 本文通过对云南早元古代哀牢山群、底巴都组与大红山群的地质地球化学研究，从地球化学角度证明早元古代扬子板块西缘存在板块运动，前特提斯域的元古大洋板块在其东北方向的俯冲作用中，与古扬子板块发生碰撞而在俯冲带大陆边缘弧与弧后盆地分别形成哀牢山群、底巴都组与大红山群的基性火山岩。
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| 关 键 词： | 扬子板块 早元古代 哀牢山群 山群 底巴都组 大红山群 俯冲体系 微量元素地球化学 变基性岩 |
| 文章编号： | 1000-4734(2001)02-231-08 |
| 修稿时间： | 2000年2月29日 |
GEOCHEMICAL EVIDENCE OF THE LOWER PROTEROZOIC SUBDUCTION SYSTEM AT THE WESTERN MARGIN OF THE YANGTZE PLATE The Trace Element Geochemical Study of Related Metamorphic Basaltic Rocks |
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| Zhang Hongxiang\\ Liu Congqiang\\ Xu Zhifang\\ Huang Zhilong\.GEOCHEMICAL EVIDENCE OF THE LOWER PROTEROZOIC SUBDUCTION SYSTEM AT THE WESTERN MARGIN OF THE YANGTZE PLATE The Trace Element Geochemical Study of Related Metamorphic Basaltic Rocks[J].Acta Mineralogica Sinica,2001,21(2):231-238. |
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| Authors: | Zhang Hongxiang\\ Liu Congqiang\\ Xu Zhifang\\ Huang Zhilong\ |
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| Institution: | Zhang Hongxiang\+1\ Liu Congqiang\+2\ Xu Zhifang\+1\ Huang Zhilong\+2 |
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| Abstract: | Geological evidence from the geological and geochemical study of Lower Proterozoic Ailaoshan Group, Dibadu Formation and Dahongshan Group in Yunnan Province shows that there occurred plate tectonism along the western boundary of the Yangtze Plate during the Lower Proterozoic. When the Proterozoic Oceanic Plate subducted northeastward, the basaltic volcanics of the Ailaoshan Group, Dibadu Formation and Dahongshan Group were formed in the continental margin arc and back\|arc basins respectively in response to the collision with the paleo\|Yangtze Plate. |
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| Keywords: | s: western margin of the Yangtze Plate Lower Proterozoic Ailaoshan Group Dibadu Formation Dahongshan Group subduction system |
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