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| 粤北石土岭铀矿床碱交代作用成因探讨 | |
| 引用本文： | 邓平,凌洪飞,沈渭洲,高剑峰,谭正中,朱捌,黄国龙.粤北石土岭铀矿床碱交代作用成因探讨[J].地质论评,2005,51(5):557-565. |
| 作者姓名： | 邓平 凌洪飞 沈渭洲 高剑峰 谭正中 朱捌 黄国龙 |
| 作者单位： | 1. 中国地质科学院地质研究所,北京,100037;核工业290研究所,广东,韶关,512026 2. 南京大学内生金属矿床成矿机制研究国家重点实验室,南京大学地球科学系,210093 3. 核工业290研究所,广东,韶关,512026 |
| 基金项目： | 国家高技术研究发展计划(863计划);国家创新研究群体科学基金;中南大学校科研和教改项目 |
| 摘 要： | 粤北石土岭铀矿床碱交代作用十分发育，矿区范围内围岩蚀变强烈，主要发育有白云母化、钾长石化、绿泥石化、绢云母化等蚀变类型。它们多呈面状展布，与铀成矿关系十分密切。本文根据含矿主岩、碱交代岩、辉绿岩与沥青铀矿在形成时间上的对比，以及碱交代岩的地球化学特征研究，认为石土岭铀矿床的碱交代作用主要是地幔流体沿深层次伸展构造上升过程中产生的交代作用形成的。 |
| 关 键 词： | 碱交代 地球化学 地幔流体 铀矿床 粤北 广东 |
| 收稿时间： | 2005-02-18 |
| 修稿时间： | 2005-02-182005-06-03 |
A Discussion on Alkali Metasomatism in Shituling Uranium Deposit,Northern Guangdong Province |
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| DENG Ping,LING Hongfei,SHEN Weizhou,GAO Jianfeng,TAN Zhengzhong,ZHU Ba and HUANG Guolong.A Discussion on Alkali Metasomatism in Shituling Uranium Deposit,Northern Guangdong Province[J].Geological Review,2005,51(5):557-565. | |
| Authors: | DENG Ping LING Hongfei SHEN Weizhou GAO Jianfeng TAN Zhengzhong ZHU Ba and HUANG Guolong |
| Institution: | 1. Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037;2. State Key Laboratory for Mineral Deposits Research, Department of Earth Sciences, Nanjing University, 210093 ; 3. Research Institute No. 290, CNNC, Shaoguan, Guangdong Province, 512026 |
| Abstract: | Alkali metasomatism occurs currently in Shituling uranium deposit, northern Guangdong province. The wall rock alterations of orefield are strong, which mainly include muscovitization, potash feldspar alteration, chloritization, and sericitization. The alterations distribute planarly, and are consistent with the uranium mineralization. Based on the contrasting of the formation time of ore hosted rock, alkali rock, diabase and uraninite, and study on the geochemical features of the alkali rock, The study present that alkali metasomatism in the Shituling uranium deposit is formed by the metasomatism of the mantle fluid through deep extensional tectonics. |
| Keywords: | alkali metasomatism geochemistry mantle fluid uranium deposit Northern Guangdong |
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