确定矿产资源勘查风险系数的方法的方法——改进的费用效益法

Determination of prospecting risk coefficient of mineral resources:a proved cost-effect method

通过系统分析影响矿产资源勘查风险的基本因素 ,对前人确定勘查风险系数的方法———费用效益法、概率统计法进行了全面的评述 ,认为在实际操作上存在较大的困难 ,计算结果的准确性并不可靠。从统计地球化学理论出发 ,考查了矿产资源勘查和开发全过程中技术、经济参数对投资效果的影响 ,推导出矿产勘查投资利润率的计算公式 ,并将其与安全利率相比较 。

Factors of influencing prospecting risk and calculating methods of prospecting risk of mineral resource has been analyzed systematically in the paper.It is very difficult to calcalate its value by probability statistic method.The resault calculated by costed effect method is not precise.Considering all the technical and economic parameters which influence prospecting and mining the mineral resource,the paper has also concluded a new formula calculating profit ratio of investment on the basis of theory of statistic geochemistry.The prospecting risk coefficient can be calculated with safe profit ratio.