| 粤北贵东复式岩体的形成与重熔界面的形态演化 |
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| 引用本文： | 李宏卫,娄峰,陈光明,邱列,唐煜坤,杨燕娜,许冠军.粤北贵东复式岩体的形成与重熔界面的形态演化[J].地学前缘,2011,18(1):39-48. |
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| 作者姓名： | 李宏卫 娄峰 陈光明 邱列 唐煜坤 杨燕娜 许冠军 |
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| 作者单位： | 中山大学地球科学系;广核-中大花岗岩与铀矿资源研究所; |
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| 基金项目： | 高等学校博士学科点基金项目(20070558033); 广东省核工业地质局项目(321107102277) |
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| 摘 要： | 根据花岗岩的"原地重熔-壳内对流"理论,对粤北贵东复式岩体的各种地质地球化学资料进行重新编码,证实该复式岩体的形成是该区陆壳中生代多次熔融(重熔)的结果,并在此基础上重建该区不同期次重熔界面形态.研究表明,早侏罗世重熔界面总体自南向北倾斜,因而在同一剥蚀面下,岩体自南向北依次出露中心相、过渡相、边缘相的岩性;晚侏罗世的...
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| 关 键 词： | 贵东复式岩体 下庄矿田 原地重熔 重熔界面形态 |
Formation mechanism of the Guidong CGB in North Guangdong and the evolution of melting interfaces |
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| Li Hongwei,Lou Feng,Chen Guangming,Qiu Lie,Tang Yukun,Yang Yanna,Xu Guanjun.Formation mechanism of the Guidong CGB in North Guangdong and the evolution of melting interfaces[J].Earth Science Frontiers,2011,18(1):39-48. |
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| Authors: | Li Hongwei Lou Feng Chen Guangming Qiu Lie Tang Yukun Yang Yanna Xu Guanjun |
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| Affiliation: | Li Hongwei1,2,Lou Feng1,Chen Guangming2,Qiu Lie2,Tang Yukun1,Yang Yanna1,Xu Guanjun1 1.Department of Earth Sciences,Sun Yat-Sen University,Guangzhou 510275,China2.GH-ZD Institute of Granite and Uranium Resource Studies,Guangzhou 510800,China |
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| Abstract: | Re-encoding of the geological and geochemical data concerning the Guidong Composite Granite Body(CGB) with the hypothesis of in-situ melting and crustal convection suggests that the Guidong CGB was formed by repeated crustal melting of this area in the Mesozoic.On that basis,this paper rebuilds the melting interface(MI) formed in different Yanshanian periods: the MI formed in the Early Jurassic totally tilts from south to north,which resulted in the early Yanshanian granite cropping out from inner facies to... |
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| Keywords: | Guidong composite granite body Xiazhuang ore-field in-situ melting MI shape |
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