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以滇中大红山群铜矿床找矿预测为例，探讨了应用地理信息系统（ＧＩＳ）查明地质异常，圈定“５Ｐ”地段的方法．在各类异常找矿有利度分析的基础上，找矿可行地段和有利地段的圈定按如下步骤进行：建立成矿预测空间模型；圈定找矿可行地段；确定用于预测找矿有利地段的异常组合及数值区间，并决定其权重；所选定的各异常叠合，形成叠合图；确定各级别找矿有利地段的归并标准，归并后圈出找矿有利地段．最后，具体地讨论了大红山群铜矿床的预测结果．
Taking the prognosis of prospecting for the Dahongshan Group copper deposit in Central Yunnan as an example, the method of identifying geological anomalies and delineating “5P” lots by using Geographic Information System (GIS) was discussed. Based on the analysis of the favorable degree of all kinds of anomalous prospecting, the delineation of feasible prospecting and favorable prospecting is carried out as follows: establishing the spatial model of ore-forming prediction; delineating the feasible prospecting area; and determining the anomaly for predicting the favorable prospecting prospecting Combination and numerical interval, and determine its weight; the selected anomalies superimposed to form a superimposed map; to determine the merging criteria of favorable prospecting at all levels, after the merger circle of favorable prospecting. Finally, the prediction results of the Dahongshan Group copper deposit are discussed in detail.