摘要
矿集区内隐伏矿综合定位预测方法已成为找矿预测领域的研究热点。矿床矿点的形成是由多种非线性成矿因素综合作用的结果,多属性模糊优选决策模型(FOMMAD)是解决这类问题的有效工具。寻找一个科学合理的属性权重确定方法,是FOMMAD能否成功实施的关键。首次应用Meta分析方法对地层、接触带、断裂、蚀变、构造交汇处5种找矿信息的权重进行了定量比较研究。在此基础上,运用FOMMAD及模糊层次分析法(FAHP),在研究区圈定了12个成矿有利度较高的靶区。验证结果表明,基于Meta分析与FOMMAD模型的多元找矿信息综合预测模型得到的成矿有利度可作为研究区找矿预测的综合标志。
The integrated prognosis of concealed ore deposit location has become a heated research field.The formation of the mineral deposit or ore spot is a non-linear process affected by many ore-controlling factors.The fuzzy optimization model of multi-attribute decision-making is an efficient method for dealing with such a problem.However,the creation of FOMMAD is not an easy thing.It is a key problem to find a scientific and reasonable method for attribute weight.Meta-analysis is a very comprehensive statistical method that systematically combines,analyzes and comprehensively evaluates several relevant trials.It has been applied generally to medical problems,and its statistical methods are developing day by day.Hence meta-analysis can provide reasonably scientific approach to attribute weight.In this paper,the principle and feasibility of the meta-analysis for metallogenic prediction were analyzed and demonstrated,and Tianmashan-Jingkouling-Tongguanshan area was chosen as the study area.Meta-analysis is applied in quantitative comparison of availability of five explorations for the first time.In the end,a comprehensive evaluation model for environmental quality at tourism sites was established based on analytic hierarchy process,Delphi Law,and the multi-level fuzzy synthetic evaluation method,and the environmental quality of the Zhangjiajie National Forest Park was evaluated.The authors made the multivariate metallogenic information synthetic prediction and evaluation to the study area,integrated the geological analysis results,and delineated 12 target areas which had high advantage degree in metallogenic conditions.Compared with the other relevant materials and outdoors verification,it is shown that the application of this kind of model to delineating target areas is highly effective in ore-prospecting work.
出处
《中国地质》
CAS
CSCD
北大核心
2011年第1期180-189,共10页
Geology in China
基金
科技部国家"十一五"科技支撑计划(2006BAB01B07)
国家"973"计划前期研究专项(2007CB416608)
中南大学博士研究生学位论文创新选题项目(1343-77208)共同资助
