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。
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.
出处
《陕西地质》
2010年第1期98-103,共6页
Geology of Shaanxi
基金
中国地质调查局陕西-旬阳地区矿产远景调查项目(矿调(2005)13-8)
关键词
铅锌矿
证据权重
成矿远景
定量预测
陕西旬阳
the lead-zinc mine
weights-of-evidence method
mineraliand prospects
quantitative forecast
Xunyang region of Shannxi
