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矿床品位—吨位模型研究属于学科前沿领域 ,它是系统勘查理论的重要组成部分。依据“1997年全国矿产储量数据库”资料 ,对全国 394个砂金矿床建立了地质模型、品位模型、吨位模型、吨位—品位联合模型 ,模型类型包括频率直方图、累积频率分布图 ;分别总结了砂金矿床品位及吨位分布的典型数学地质特征。
Mineral grade - tonnage model belongs to the field of frontier disciplines, it is an important part of system exploration theory. According to the data of National Mineral Reserve Database of 1997, geological model, grade model, tonnage model and tonnage-grade joint model were established for 394 placer gold deposits in China. The model types include frequency histogram and cumulative frequency distribution chart. Typical Mathematical and Geological Characteristics of Deposit Grade and Tonnage Distribution.