Abstract:The application effect of weight of evidence modeling in small-medium scale metallogenic prediction is fairly good,but researches on weight of evidence modeling of medium-large scale metallogenic prediction in small low working level areas are very insufficient. In this paper, the authors selected a certain medium-large scale work area and a small low working level area in Alxa region. According to geological features in combination with spatial position analysis, appropriate evidence factors were selected. By linking each evidence factor with NE grid size of 80 m×40 m, the authors analyzed and calculated spatial relationship between the evidence and Cu high points on the basis of weight of evidence modeling in MORPAS system. Spatial distribution of favorable ore-prospecting areas is expressed intuitively through graphics. Two trenchs intersect the ore body, suggesting that the model is also suitable for the medium-large scale and small low working level area metallogenic prediction.
陈冲, 谭俊, 石文杰, 李相坤, 段显超, 高翔, 翟亚锋. MORPAS系统证据权法在中大比例尺成矿预测中的应用[J]. 物探与化探, 2012, 36(5): 827-833.
CHEN Chong, TAN Jun, SHI Wen-jie, Li Xiang-kun, DUAN Xian-chao, GAO Xiang, ZHAI Ya-feng. THE APPLICATION OF WEIGHTS OF EVIDENCE IN MORPAS SYSTEM TO MEDIUM-LARGE SCALE METALLOGENIC PRODICTION. Geophysical and Geochemical Exploration, 2012, 36(5): 827-833.
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