【摘要】 本文通过对桂西北地区遥感解译的 １７７个环形构造的统计分析，研究了环形构造的数值特征 和环形构造与金矿成矿的关系，计算了环形构造的信息量，用“概率模型”估算了环形构造对寻 找金矿的贡献。环形构造和成矿关系的统计分析结果表明，有环形构造地区的找矿概率为无环形 构造地区的找矿概率的５０倍。故认为，在桂西北地区，环形构造是寻找金矿的有利标志。更多还原

【Abstract】 The statistical analysis was done for 177 circular structures interpreted from the remote sensing images of northwestern Guangxi Autonomous Region. The value feature of circular structures and the relationship between the circular structures and the gold minerogenesis were studied. The informations content of circular structures was calculated. The contribution of circular structures to find gold deposits was estimated using the "probability model". The statistic analysis result of the relationship between the circular structures and minerogenesis showed the deposit--finding probability in the areas of circular structures is 50 times than in the areas without circular structures. So, the circular structures in northwestern Guangxi Autonomous Region should be the favourable mark to find gold deposits.更多还原