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在大量实际材料的基础上,建立了变质和超变质建造中有利于铀的放射性地球化学标志;铀的平均背景含量增高和变异系数值高(80—100％或更高);钍铀比值低(1左右或更低),“活动”铀含量增高;在Ca、Mg、Fe硅酸盐类副矿物中铀浓度急剧增加。所列举化学元素符号指标中的任何一个都不具有单独的决定意义,因此首先需要研究它们中的每一个与其它指标的组合情况,其次还要考虑到实际的地质环境。
On the basis of a large number of actual materials, radioactive geochemical markers favorable to uranium in metamorphism and metamorphism were established; the average background content of uranium was high and the coefficient of variation was high (80-100% or higher); the ratio of thorium to uranium was low (Around 1 or below) and “active” uranium increased; uranium concentrations increased sharply in Ca, Mg, Fe silicate sidelobes. Any one of the listed chemical element notation indicators is not of decisive significance, so it is necessary first to study the combination of each of them with other indicators and, secondly, to take account of the actual geological environment.