| 西藏布姆松绒岩体地球化学特征及铀成矿前景 |
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| 引用本文： | 王 勤,赵宝光,王四利,等. 西藏布姆松绒岩体地球化学特征及铀成矿前景[J]. 铀矿地质, 2014, 0(3): 149-154 |
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| 作者姓名： | 王 勤 赵宝光 王四利 等 |
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| 作者单位： | [1]成都理工大学地球科学学院,四川成都610059 [2]核工业280研究所,四川广汉618300 |
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| 基金项目： | 中国地质调查局地质调查工作项目 本文得到了核工业北京地质研究院夏毓亮高级工程师（研究员级）的悉心指导,于阿朋工程师完成了本文同位素的测试和古铀含量计算;成都地质矿产研究所黄勇博士在成文过程中给予了大力帮助,进行了非常有益的探讨,在此对他们表示感谢! |
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| 摘 要： | 通过系统总结布姆松绒岩体的地质、地球化学特征,结合花岗岩型铀矿成矿理论及产铀花岗岩和非产铀花岗岩的判别标志,笔者认为该岩体符合产铀花岗岩的地质、地球化学特征,具有较好的铀成矿前景.其主要的找矿靶区是岩体内部的构造节点附近,找矿目标是以热液脉型为主的花岗岩型铀矿.
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| 关 键 词： | 地球化学特征 铀成矿前景 布姆松绒岩体 西藏 |
Geochemical Features and Its Uranium Metallogenic Prospects of Bumosongrong Batholith,Tibet |
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| Affiliation: | ZHANG Jian, CHEN Pei- rong, CHEN Wei- feng, CHAO Xiao- lin, LI Da- yan (1. Research Insititute No. 230, CNNC, Changsha, Hunan 410007, China State Key Laboratory of Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China) |
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| Abstract: | This article studied most Indosinian plutons in South China, and work out the indicative char- acter of uranium- deposit-bearing granites （UDCJ）. The source region and the genetic type of granite are the principal cause of uranium - bearing. The main characteristic of UDG in South China is as follows. The forming ages is Indosinian from 219 to 250Ma and located in the Cathaysian plate. It had lower zircon saturation tempture and lower oxygen fugacity. It had the same character with S type granite. The biotite of UDG has strong degree of alteration, more accessory mineral inclusions. Compared with non- uranium-deposit- bearing granites （NUDG）, UDG are characterized by relative enrichment of SiO2, K20, P2Os, Pb, U, Th, Rb and LREE, but depletion of A1203, TiO2, FeO, MgO, CaO, St, Ba and Eu, indicating that UI~ had undergone stronger fractional crystallization. This indicative charac- ters may help us in uranium exploration. |
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| Keywords: | geochemical characteristic Indosinian granite uranium- metallizatiom South China |
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