摘要
十红滩铀矿床地下水中的气体成分主要是N2、O2,为大气降水成因,地下水中含有的对铀还原成矿非常有利的强还原性气体CH4、H2在矿床成矿过程中发挥了重要作用。气体中He、Ar组成表明,自1.33 Ma以来该矿床在地下水的作用下一直处于发展演化过程中。
In the groundwater of Shihongtan uranium deposit, nitrogen and oxygen are the main gas component, which are of genesis of astmospheric precipitation, the othor components are the methane and hydrogen which are strong reductive gas and favor to the forming of uranium deposit. According to the analysis of composition of carbon isotope in the methane, methane and hydrogen are considered to be the decomposed products of organic matter by microbe under orygen-free condition, and play an very important role in the metallogenic process at this uranium deposit. The composition of helium and argon in the gas indicate that this uranium meneralization has been developing and evolving under the effect of the groundwater.since 1.33 Ma.
出处
《铀矿地质》
CAS
CSCD
2009年第4期222-227,共6页
Uranium Geology
关键词
大气降水成因
生物化学作用
气体
地下水
十红滩铀矿床
genesis of astmospheric precipitation
biochemical action
gas
groundwater
Shihongtan uranium deposit
