【摘要】 针对工作区铅锌矿成因类型利用GIS空间信息系统对地质、物探、化探、遥感等各类异常综合分析与成矿要素的信息提取,并在矿产资源评价分析系统(MORPAS3.0)下建立了陕西旬阳地区铅锌矿证据权重法模型证据图层:赋矿地层、控矿构造、化探异常等18个,通过条件独立性检验确定证据权因子层15个,绘制了陕西旬阳地区铅锌矿资源远景预测区后验概率图,给出了陕西旬阳地区铅锌矿产远景定量预测区评价结论,取得了良好的预测效果。更多还原

【Abstract】 Regarding the generation type of Lead-Zinc region,this paper has analyzed the various types of anomalies and extracted the information of ore-forming elements from geology,geophysical prospecting,geochemical prospecting and RS with GIS spatial information system based on the previous geological data collection,established the Lead-Zinc mine evidence layer by weights evidence method model including 18 layers such as ore-host strata,ore-control structures and geochemical prospecting anomalies with Metal Ore Resources Prospecting & Assessment System 3.0(MORPAS3.0)in Xunyang region of Shaanxi,also fixed 15 factor layers of weights evidence through the conditional independence test and drafted posterior probability graph for prospective resource zone of Lead-Zinc mine,finally given evaluation conclusions for long-term quantitative prediction region of Lead-Zinc mine based on comprehensive analysis and evaluation.更多还原