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在热液铀矿床原生晕的外围可划分出所谓次本底晕带,其中的铀浓度不超过本底值,但与本底场相比这种带的不均质空间分布参数是异常的。研究结果表明,这种带的形成与热液作用下铀的局部再分配有关。
In the periphery of the primary halo of the hydrothermal uranium deposit, a so-called sub-basal Halo zone can be distinguished in which the uranium concentration does not exceed the background value, but the inhomogeneous spatial distribution parameters of this zone are abnormal compared to the background field. The results show that the formation of this zone is related to the local redistribution of uranium under hydrothermal conditions.