基于专家证据权重法的成矿远景区划与评价——以东昆仑地区金矿为例Delineation and Assessment of Deposit Prospect Based on Expert Weights of Evidence: An Example from Gold Deposits in Eastern Kunlun Mountain Area
丁清峰;孙丰月;
摘要(Abstract):
在介绍专家证据权重法的基础上,将东昆仑地区的基础地质、区域成矿规律及典型矿床研究等方面取得的认识(知识系统)与证据权重法结合,提出并建立了一个基于专家证据权重法的矿产资源定量预测评价系统,该系统在根据知识系统对各证据因子赋权重的过程中体现了地质专家的思想。应用专家证据权重法对东昆仑地区金矿的成矿概率进行了定量计算,并进行了金矿成矿远景区划。研究结果表明远景区内预测含矿单元的后验概率二重积分的大小可代表远景区的总体成矿潜力,据此将各远景区进行分级排队,由高到低划分为A、B、C 3级。
关键词(KeyWords): 东昆仑;专家证据权重法;成矿远景区划评价
基金项目(Foundation): 中国地质调查局地质调查项目“新疆-青海东昆仑成矿带成矿规律和找矿方向综合研究”(200110200021);; “东昆仑成矿带重大找矿疑难问题研究”(200310200012)
作者(Author): 丁清峰;孙丰月;
Email:
DOI:
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