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应用铀、钍、锕铀系中~(228)Ra、~(230)Th、~(231)Pa、~(232)Th等同位素与~(38)U、~(226)Ra之间存在量关系探索了3112矿床深部矿体偏镭的原因。结果表明该矿床深部偏镭是外来镭后期叠加所致。分析数据显示,严重的偏镭现象难以用局部偏铀地段的镭流失予以补偿。这就提示有隐伏镭源体铀存在的可能性。本文所述方法也适用于地表放射性异常性质的判别研究。
In the uranium, thorium and actinide uranium systems, the amount of ~ (228) Ra, ~ (230) Th, ~ (231) Pa, ~ 232 Th isotopes and ~ 38 U, ~ 226 Ra The relationship explored the causes of partial radium in the deep ore body of the 3112 deposit. The results show that the deep partial radium of this deposit is caused by the superimposition of alien radium in the later period. Analytical data show that it is difficult to compensate for the serious phenomenon of partial radium with local radium loss from partial uranium fields. This suggests the possibility of concealed radium source uranium. The method described in this paper is also suitable for discriminating the nature of the surface radioactive anomalies.