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本文分析了MS花岗岩体中段地质、地球化学持点,通过确定铀矿指示元素,剖析了地球化学原生晕、次生晕特征,建立了铀矿床地球化学异常模式。此模式在新区应用表明,利用“异常模式”找铀矿,颇见成效。同时,本文还提出了一种新的计算元素分带序列的方法——广义衬值法。实践证明,与格里戈良法相比,广义衬值法更能反映客观规律,且计算简便。
In this paper, the geological and geochemical holding points in the middle of MS granite are analyzed. By determining the element of uranium ore, the characteristics of primary halo and secondary halo are analyzed and the geochemical anomaly pattern of uranium deposit is established. The application of this model in the new district shows that the use of “abnormal mode” to find uranium, quite successful. At the same time, this paper also proposed a new method to calculate the elemental zoning sequence - generalized liner method. Practice shows that, compared with Grigorian method, the generalized liner method can reflect the objective law better and the calculation is simple.