中国地质2012，Vol.39Issue(6)：1847-1856,10.
粤北下庄铀矿田脉石矿物Sr、Nd、Pb同位素地球化学研究
Sr, Nd and Pb isotopic geochemistry of gangue minerals in the Xiazhuang uranium orefield, northern Guangdong Province
摘要
Abstract
The Xiazhuang uranium orefield is an important uranium producing area in Nanling region, where there exist many ore deposits. To solve the much controversial problems of the origin of uranium and the ore-forming fluid, this research is focused on Sr, Nd and Pb isotopic geochemistry of the gangue minerals. The results show that the carbonate has rich radioactive lead. The lead and uranium mainly came from such granitic rock bodies as Maofeng granite. The compositions of Sr and Nd isotope show that the ore-forming fluid was mainly derived from the crust. The water-rock interaction between the ore-forming fluid and the basic dike rock during the upward migration of the ore-forming fluid and the precipitation of uranium formed the feature of binary composition of the gangue minerals.关键词
Sr、Nd、Pb同位素/下庄铀矿田/脉石矿物/成矿物质/成矿流体Key words
Sr,Nd and Pb isotope/Xiazhuang uranium orefield/gangue minerals/metallogenic materials,ore-forming fluid分类
天文与地球科学引用本文复制引用
商朋强,胡瑞忠,毕献武,张国全,田建吉..粤北下庄铀矿田脉石矿物Sr、Nd、Pb同位素地球化学研究[J].中国地质,2012,39(6):1847-1856,10.基金项目
中国科学院知识创新工程重要方向项目(KZCX3-SW-125)、国家杰出青年科学基金(49925309)资助. （KZCX3-SW-125）
