摘要
结合陕西省凤太矿集区金矿成矿特征,借助MORPAS平台,对区内各控矿要素量化,并利用GIS的空间分析功能提取了地层、断裂Buffer、岩浆岩、元素化探异常在内的十一个证据图层,并建立证据权重找矿模型,圈定了六个找矿靶区,指明了找矿方向。MORPAS的量化及空间分析功能结合证据权方法,使得利用地质数据库进行成矿预测更加简便快捷,预测结果也相对客观。但是,当其网格化以及在针对不同规模矿床和不同精度的数据进行预测时,还需要进一步改善。
Based on the forming characteristics of the gold deposits in Fengtai region,11 database layers,e.g.strata,fracture buffer,magmatic rock and geochemistry,etc.are extracted and constructed by the MORPAS system.Six target areas for Au deoposit are delineated as clearly direction with evidence weight modeling.Qantization function of spatial analysis and evidence weight method made it simple and rapid that metallogenic prognosis with geological database,and the results are more objective.But there needs to do some improvements when making grid and working with different deposit scale and precision of data.
出处
《物探化探计算技术》
CAS
CSCD
2009年第5期500-506,共7页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国家科技支撑计划课题(2006BAB01A11)
