| REE geochemical characteristics of the No. 302 uranium deposit in northern Guangdong, South China |
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| 作者姓名： | ZHANG Guoquan HU Ruizhong BI Xianwu FENG Haisheng SHANG Pengqiang TIAN Jianji |
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| 作者单位： | [1]State Key Laboratory of Ore Deposit Geochemistry; Institute of Geochemistry; Chinese Academy of Sciences Guiyang 550002, China [2]Graduate School of the Chinese Academy of Sciences, Beijing 100039, China [3]China National Nuclear Shaoguan Jingyuan Uranium Industry Co., Ltd., Shaoguan 512329, China |
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| 基金项目： | This work was funded jointly by the Important Research Orientation Project under the Knowledge Innovation Program sponsored by the Chinese Academy of Sciences (Grant No. KZCX3-SW-125) and the National Outstanding Young Scientists Science Foundation of China (Grant No. 49925309). |
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| 摘 要： |
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| 关 键 词： | 铀 堆积物 花岗岩 矿石 |
| 收稿时间： | 30 July 2006 |
| 修稿时间： | 2006-07-30 |
REE geochemical characteristics of the No. 302 uranium deposit in northern Guangdong,South China |
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| ZHANG Guoquan HU Ruizhong BI Xianwu FENG Haisheng SHANG Pengqiang TIAN Jianji.REE geochemical characteristics of the No. 302 uranium deposit in northern Guangdong, South China[J].Chinese Journal of Geochemistry,2007,26(4):425-433. |
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| Authors: | Zhang Guoquan Hu Ruizhong Bi Xianwu Feng Haisheng Shang Pengqiang Tian Jianji |
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| Institution: | (1) State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, China;(2) Graduate School of the Chinese Academy of Sciences, Beijing, 100039, China;(3) China National Nuclear Shaoguan Jingyuan Uranium Industry Co., Ltd., Shaoguan, 512329, China |
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| Abstract: | The No. 302 uranium deposit, located in Guangdong Province, is a typical granite-type uranium ore deposit REE geochemical characteristics of the wall rocks, pitchblende, altered rocks, calcite and fluorite from this deposit have been systematically studied in this paper. The result showed that the alkali-metasomatic granites and other altered rocks have the same REE distribution patterns as Indosinian granites. It is indicated that the hydrothermal ore-forming solution had altered the Indosinian granites, and ore-forming materials may directly originate from the Indosinian granites. Calcite and fluorite of different stages are the products derived from the same source but different stages. The evolution and degassing of the mineralizing solution might induce LREE enrichment to varying degree. Mantle fluid and a large volume of mineralizer may be the crucial factors controlling uranium mineralization, and the hydrothermal solution with mineralizer played an important role in U transport and concentration. Meanwhile, the degassing of CO2 might promote U and REE precipitation. |
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| Keywords: | No 302 uranium deposit granite-type uranium deposit REE ore-forming hydrothermal fluid South China |
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