| 华南花岗岩暗色微粒包体成因研究 |
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| 引用本文： | 彭卓伦,Rodney Grapes,庄文明,张献河.华南花岗岩暗色微粒包体成因研究[J].地学前缘,2011,18(1):82-88. |
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| 作者姓名： | 彭卓伦 Rodney Grapes 庄文明 张献河 |
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| 作者单位： | 1中山大学 地球科学系, 广东 广州 510275
2 Department of Earth and Environmental Sciences, Korea University, Seoul 136 731, Korea
3广东省佛山地质局, 广东 佛山 528000
4广东省地质调查院, 广东 广州 510080 |
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| 基金项目： | 高等学校博士学科点基金项目(20070558033,20030558005); 中央高校基本科研业务费专项资金项目(32110-3161318); 中国地质调查局资助项目(200013000126) |
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| 摘 要： | 通过对暗色微粒包体的空间分布和形态特征以及包体矿物学、显微结构和岩石化学组成等方面的研究成果,在花岗岩“原地重熔”成因模型的基础上,建立了包体演化与熔渣演化的关系模型,证实包体的前身是捕虏体,后者代表从盖层落入岩浆中的岩块,包体则是岩块部分熔融后的残余物。不同类型、不同形态、不同基性度的包体,代表了岩石原地熔融过程中不同阶段的产物,富云包体反映了熔渣演化的最后阶段,在此基础上的进一步熔融即与寄主岩浆混成一体,完成了从岩石到岩浆的整个演化过程。
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| 关 键 词： | 花岗岩 原地重熔 暗色微粒包体 残余熔渣 |
| 收稿时间： | 2010-12-13 |
Genesis of mafic microgranular enclaves in granites in SE China |
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| Peng Zhuolun,Rodney Grapes,Zhuang Wenming,Zhang Xianhe.Genesis of mafic microgranular enclaves in granites in SE China[J].Earth Science Frontiers,2011,18(1):82-88. |
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| Authors: | Peng Zhuolun Rodney Grapes Zhuang Wenming Zhang Xianhe |
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| Institution: | Peng Zhuolun1,Rodney Grapes2,Zhuang Wenming3,Zhang Xianhe41.Department of Earth Sciences,Sun Yat-Sen University,Guangzhou 510275,China2.Department of Earth and Environmental Sciences,Korea University,Seoul 136-731,Korea3.Foshan Geological Bureau of Guangdong Province,Foshan 528000,China4.Guangdong Geologic Survey Institute,Guangzhou 510080,China |
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| Abstract: | Observations of mineral composition and microtexture of the mafic microgranular enclaves(MMEs) from different granite bodies in SE China demonstrated that no matter what mineral,rock-forming or accessory,two generations of the mineral were found coexisting in all samples of the MMEs.Most of the MMEs were not with igneous texture,as they were generally considered,but with the melting texture.Multi-types of textures coexisted in the same enclave suggested that the MMEs should have been derived from the residu... |
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| Keywords: | granite mafic microgranular enclave(MME) mineral composition microtexture |
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