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介绍的成矿有利度计算法是一种基于矢量数据的成矿预测方法.与传统的成矿有利度计算法相比,该方法的预测单元采用自然单元(多边形),而不是网格化单元.成矿有利度计算过程是先对2个预测变量(空间图形)进行相交分析,有利因子相乘并进行归一化处理,再与下一个变量进行相交分析,最终得到能反映该预测单元综合成矿地质条件的有利成矿因子值.在详细介绍了成矿有利度计算法的基本原理与工作流程基础上,对伊犁盆地南缘西段水西沟群VII1亚旋回进行了预测评价,圈定了I级、II级铀成矿远景区各1片,III级成矿远景区2片.
The proposed method for calculating the degree of ore-forming favorable degree is a method of metallogenic prediction based on vector data, which uses natural elements (polygons) rather than gridding elements as compared with the traditional method of calculating the degree of mineralization. The calculation of the degree of metallogenic availability is based on the intersection analysis of two predictors (space graph), multiplication of multiplicative factors and normalization, and then the intersection analysis with the next variable. Finally, Based on the detailed introduction of the basic principle and work flow of the calculation method for the degree of ore-forming favorable degree, the prediction and assessment of the Xi-Xi sub-Segment VII1 in the western segment of the southern margin of the Ili basin is carried out. I grade, II grade uranium mineralization prospects of each one, III prospecting area 2.