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为了深入研究找矿技术方法的优选和集成,引入了“有效性”的概念来衡量某种探测技术方法的找矿预测效果。Meta分析是一种起源于医学领域,对具备特定条件的、同类研究主题的大量研究结果进行综合后统计的超常规综合统计方法。文中对引入Meta分析的思路和可行性充分分析论证后,以铜山铜矿为例,首次应用Meta分析方法对CSAMT,TEM,EH4三种物探方法所获得的二维反演剖面进行了三种方法找矿预测的有效性定量对比研究。结果表明,在铜山铜矿前山南测区,CSAMT法与EH4法的找矿预测有效性比TEM法明显要高;而CSAMT法和EH4法的找矿预测有效性没有明显差异。
In order to further study the optimization and integration of prospecting methods, the concept of “validity ” is introduced to measure the prospecting prognosis of a certain exploration method. Meta-analysis is a super-generalized statistical method that comes from the medical field and synthesizes a large number of research results of similar research topics with specific conditions. After analyzing and proving the feasibility of Meta-analysis, the paper takes the Tongshan Copper Mine as an example and applies Meta analysis method for the first time to three-dimensional inversion sections obtained from three geophysical methods CSAMT, TEM and EH4 Quantitative and Comparative Study on Effectiveness of Prospecting Prediction Methods. The results show that the prospecting efficiency of CSAMT method and EH4 method is significantly higher than that of TEM method in the Shannan area before Tongshan copper deposit, while there is no significant difference between CSAMT method and EH4 method.