袁峰(1971-),男,广西桂林人,博士,合肥工业大学教授,博士生导师.

基于GIS和证据权重法的钟姑铁矿成矿预测

郑通科,袁峰,张明明,李晓晖,贾蔡

(合肥工业大学 资源与环境工程学院,安徽 合肥230009)

摘要:文章应用GIS空间分析和证据权重法相结合的方式进行钟姑铁矿田的成矿预测。为了不受软件平台的限制,基于ArcGIS Engine平台进行GIS空间分析功能和证据权重法功能的编程实现。依据钟姑铁矿田的地质背景和成矿规律,分析控矿因素并提取地层、岩浆岩、断裂等与成矿有关的11个证据因子。利用证据权重法对钟姑铁矿远景区进行圈定,圈定3个Ⅰ级成矿远景区、5个Ⅱ级成矿远景区和2个Ⅲ级成矿远景区。

关键词:ArcGIS Engine 平台;证据权重法;计算机编程;成矿预测

基金项目：安徽省公益性地质(科技)工作资助项目(2011-g-2);教育部新世纪优秀人才支持计划资助项目(NCET-10-0324)

作者简介：郑通科(1988-),男,广西防城港人,合肥工业大学硕士生;

doi:10.3969/j.issn.1003-5060.2015.06.026

中图分类号:P612文献标识码：A

Metallogenic prognosis of iron mineral resources in Zhonggu area based on weights of evidence method and GIS

ZHENG Tong-ke,YUAN Feng,ZHANG Ming-ming,LI Xiao-hui,JIA Cai

(School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract:Based on the spatial analysis of GIS and the weights of evidence method, the metallogenic prognosis of Zhonggu area is performed. The functions of spatial analysis of GIS and the weights of evidence are realized based on ArcGIS Engine platform so as to avoid the constraint of the software platform. According to the geological background and the metallogenic regularities of Zhonggu area, eleven evidence layers, such as strata, magmatites, fault and so on, are extracted. The weights of evidence method is used to finish the metallogenic prognosis of Zhonggu area, and three first-grade metallogenetic targets, five second-grade metallogenetic targets and two third-grade metallogenetic targets are outlined.

Key words:ArcGIS Engine platform; weights of evidence method; computer programming; metallogenic prognosis

如何从各种不同来源的信息中提取有用信息进行综合处理和综合分析,达到矿产预测目的,一直是地学界探讨的问题[1]。20世纪80年代后,成矿预测发展到以基于GIS的成矿预测方法为特点的阶段[2],GIS技术在成矿预测中的应用为多源信息的提取和综合分析提供了一条新的途径。但是,仅依靠GIS技术进行成矿预测会出现信息处理不完善和模型不适应的问题,原因在于GIS技术的形成与发展过多强调地理的空间关系,并且在成矿预测领域中技术还不成熟。……