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“证据权”法在西南“三江”南段矿产资源评价中的应用
引用本文:陈永清,夏庆霖 黄静宁 陈建国 李建国.“证据权”法在西南“三江”南段矿产资源评价中的应用[J].中国地质,2007,34(1):132-141.
作者姓名:陈永清  夏庆霖 黄静宁 陈建国 李建国
作者单位:1. 中国地质大学地球科学与资源学院,北京,100083;中国地质调查局发展研究中心,北京,100037
2. 中国地质大学资源学院,湖北武汉430074
3. 中国地质大学地球科学与资源学院,北京,100083
4. 中国地质大学地球科学与资源学院,北京,100083;云南省地质调查院,云南昆明,650051
基金项目:国家高技术研究发展计划(863计划);国家科技攻关项目
摘    要:证据权法本身是一种离散的多元统计方法。阐述了矿物资源潜力区的概念,简述证据权法的基本原理。以西南“三江”南段为例,首先在地质、地球物理、地球化学以及遥感地质等致矿信息提取的基础上,运用证据权法定量分析各类致矿信息(控矿因素)与矿产资源空间分布的关系;进而选择最佳控矿因素作为资源评价变量,据其变量计算每个单元的后验成矿概率;最终根据后验成矿概率定量圈定和评价找矿靶区。实践证明:在GIS环境下“,证据权”与找矿信息结合能够有效区分矿化有利地段和不利地段,从而达到定量快速圈定和评价找矿靶区之目的。整个过程是借助于MOPAS3.0评价系统实现的。

关 键 词:证据权法  致矿信息提取与集成  矿产资源评价  MOPAS3.0软件系统
文章编号:1000-3657(2007)01-0132-10
收稿时间:2006-06-26
修稿时间:2006-06-262006-10-10

Application of the weights-of-evidence method in mineral resource assessments in the southern segment of the "Sanjiang metallogenic zone" ,southwestern China
CHEN Yong-qing,XIA Qing-lin,HUANG Jing-ning,CHEN Jian-guo,LI Jian-guo.Application of the weights-of-evidence method in mineral resource assessments in the southern segment of the "Sanjiang metallogenic zone" ,southwestern China[J].Chinese Geology,2007,34(1):132-141.
Authors:CHEN Yong-qing  XIA Qing-lin  HUANG Jing-ning  CHEN Jian-guo  LI Jian-guo
Abstract:The weights-of-evidence method is a discrete multivariate statistical method.It elucidates the concept of mineral resource potential areas and briefly describes the basic principle of the weights-of-evidence method.Take for example the southern segment in the "Sanjiang" metallogenic zone of southwestern China,the spatial relationship between various kinds of ore-forming information(ore-controlling factors) and mineral resource distribution is quantitatively analyzed by using the weights-of-evidence method on the basis of extraction of ore-forming information from geological,geophysical,geochemical and remote sensing geological data.Then the best ore-controlling factors are chosen as the variables for mineral resource assessments,which are used for calculating the posterior ore-forming probability of each unit.Eventually,ore-finding target areas are quantitatively delineated and evaluated according to their posterior ore-forming probabilities.This case study has illustrated that under the GIS environment the favorable mineralized areas can be effectively distinguished from the unfavorable ones through the combination of the "weights-of-evidence method" with ore-finding information so that the goal of fast quantitative delineation and assessments of the ore-finding target areas may achieved with the help of MORPAS3.0.
Keywords:weights-of-evidence method  extraction and integration of ore-forming information  mineral resource assessment  MORPAS3  0 software  
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