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本文介绍了模糊综合评判法在铀矿成矿预测中的应用。该法可定量地分析预测区的地质信息,综合多种成矿因素的作用,以达到分析预测区成矿远景的目的。其步骤是:将整个预测区划分为若干子区单元,作为评判对象;根据预测区的特殊性及地质成矿过程的一般性,确定出影响成矿的主要因素,组成评判因素集;计算每个子区单元在每个因素上对“成矿”的隶属度,确定评判矩阵;选用加权平均等3个评判函数,用二次评判的方法进行模糊综合评判,得到评判结果,最后对评判结果择优,划分出三级成矿远景区。
This paper introduces the application of fuzzy comprehensive evaluation method in uranium mineralization prediction. The method can quantitatively analyze the geological information of the prediction area and synthesize the functions of various metallogenic factors in order to achieve the purpose of analyzing the prospect of metallogenic prospect in the prediction area. The method includes the following steps: dividing the whole prediction area into a plurality of sub-area units and judging objects; according to the particularity of the prediction area and the generality of the geological mineralization process, the main factors influencing the metallogenesis are determined and the set of evaluation factors are formed; Sub-district unit in each factor on the “mineralization” membership to determine the evaluation matrix; select the weighted average of three judgments function, with the second evaluation method of fuzzy comprehensive evaluation, the judge results, and finally the results of the selection of the best , Divided into three levels of prospecting area.