| 富铀花岗岩源岩特征 |
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| 引用本文： | 冯明月,何德宝. 富铀花岗岩源岩特征[J]. 国外铀金地质, 2012, 0(1): 1-8 |
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| 作者姓名： | 冯明月 何德宝 |
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| 作者单位： | 核工业北京地质研究院,中核集团铀资源勘查与评价技术重点实验室,北京100029 |
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| 摘 要： | 论述了华南陆壳的地层结构、岩性组合及其含铀性,各个构造旋回对铀的活化、迁移和富集作用。指出富铀花岗岩的源岩特征是：具有高硅、富铝、富钾的富铀陆壳。岩石组合主要以陆源泥砂质碎屑岩建造为主,夹中酸性、基性火山碎屑岩建造和碳酸盐岩建造等所组成的岩石。岩石经受了多次构造运动,使其发生不同程度的区域变质作用和混合岩化、花岗岩化,最终形成富铀花岗岩。
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| 关 键 词： | 富铀花岗岩 源岩 陆源碎屑建造 变质作用 |
The source rock characters of U-rich granite |
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| FENG Ming-yue,HE De-bao. The source rock characters of U-rich granite[J]. , 2012, 0(1): 1-8 |
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| Authors: | FENG Ming-yue HE De-bao |
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| Affiliation: | (CNNC Key Laboratory of Uranium Resource Exploration and Evaluation Technology, Beijing Research Institute of Uranium Geology,Beijing 100029,China) |
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| Abstract: | This paper discusses the stratum composition,lithological association,uranium content of crust and the activation,migration,concentration of uranium at each tectonic cycle in South China.The authors point out that the source rock of U-rich granite is U-rich continental crust which is rich in Si,Al and K.The lithological association is mainly composed of terrestrial clastic rocks formation of mudstone and sandstone,mingled with intermediate-acidic,mafic pyroclastic rocks and carbonate rocks formation.During tectonic movements,the rocks had undergone regional metamorphism,migmatitization,granitization,and formed U-rich granites finally. |
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| Keywords: | U-rich granite source rocks continental cataclastic rocks formation metamorphism |
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