摘要
金滩岩体铀矿是典型的花岗岩型铀矿床,花岗岩具有S型花岗岩特征。通过铀物质来源、成矿溶液来源、铀的搬运形式以及铀矿热液流动方向的分析,认为下寒武系牛角河组及南华系上施组为金滩岩体铀源层,花岗岩是金滩岩体的主要铀源体;各种成矿热液是在铀源体形成以后构造活动过程中逐步形成的,铀以铀的硅酸岩络合物形式搬运为主;区内铀矿热液运动方向为NNE→NW→EW向,金滩岩体铀矿床的形成是铀经过长期多次迁移和富集的结果。
The uranium deposit in Jintan granite is a typical granite-type uranium deposit.The granite has the characteristics of S-type granite.Based on the analysis of uranium material source,ore-forming solution source,uranium transporting form and uranium hydrothermal flow direction,it is concluded that Niujiaohe Formation of Lower Cambrian and Shangshi Formation of Nanhua System are uranium source beds of the Jintan rock mass,and granite is the main uranium source body of the Jintan rock mass;all kinds of ore-forming hydrothermal fluids are formed gradually in the process of tectonic activity after the formation of uranium source bodies;uranium is transported mainly in the form of uranium silicate complex;the movement direction of uranium hydrothermal fluid is NNE-NW-EW,the formation of Jintan granite uranium deposit is the result of uranium migration and enrichment over a long period of time.
作者
袁庚红
刘龙
孟平虹
周战伟
曾智超
Yuan Genghong;Liu Long;Meng Pinghong;Zhou Zhanwei;Zeng Zhichao(263 Brigade of the Jiangxi Nuclear Industry Geological Bureau)
出处
《现代矿业》
CAS
2019年第12期63-66,共4页
Modern Mining
关键词
金滩岩体
铀源
铀迁移沉淀
产铀花岗岩
Jintan granite
Uranium source
Uranium migration and precipitation
U-bearing granite
