放射性同位素地球化学方法有效地用于地质、找矿和矿区扩大的评价还只有几年的历史。特别是后者,目前尚处于尝试阶段。几年来,我们曾不同程度地先在石灰岩、花岗岩和“老地层”等地区试验了铀同位素~(234)U/~(238)U比值方法,然后又在火山岩地区和砂岩地区用于对成 Radioisotope geochemical methods have also been used for geologic, prospecting and mine expansion estimates for only a few years. Especially the latter, is still in the trial phase. In recent years, we have tested uranium isotope ~ (234) U / ~ (238) U ratio methods in limestone, granite and “old strata” to some extent, and then used them in volcanic and sandstone areas