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依据“1997年全国矿产储量数据库”资料,对全国72个斑岩型铜矿床建立了品位模型、吨位模型以及吨—品位联合模型。模型类型包括频率直方图、累积频率分布图以及双对数坐标表示的理论分布模型。分别总结了该类型铜矿床的品位及吨位分布的典型数学特征。
Based on the “1997 National Mineral Reserve Database” data, 72 grade porphyry copper deposits in China were established grade model, tonnage model and tonnage - grade joint model. Model types include frequency histogram, cumulative frequency distribution and double logarithmic coordinates of the theoretical distribution model. The typical mathematical characteristics of grade and tonnage distribution of this type of copper deposit are summarized respectively.