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五台-吕梁地区沉积变质型铁矿证据权重法成矿预测

发布时间:2018-01-04 04:18

  本文关键词:五台-吕梁地区沉积变质型铁矿证据权重法成矿预测 出处:《地质科技情报》2016年05期  论文类型:期刊论文


  更多相关文章: 五台-吕梁 沉积变质型铁矿 成矿预测 证据权重法 多元信息


【摘要】:山西省五台-吕梁地区是华北克拉通重要的前寒武系沉积变质型铁矿成矿区。全面总结了研究区前人成果和现有资料,利用新的成矿学理论和固体矿产预测方法技术,使用GIS软件平台统计分析了地质、地球化学、地球物理等多元信息,并以此建立了研究区的沉积变质型铁矿找矿概念模型;结合网格单元法和证据权重法对研究区进行了铁矿资源预测,并依据计算得到的后验概率值和成矿地质条件的综合分析圈定了2处A级成矿远景区(五台山远景区、袁家村远景区)和5处B级成矿远景区(桑干河-灵丘县远景区、武灵镇-神堂堡乡远景区、恒山铁矿远景区、轩岗镇-长梁沟镇远景区、关帝山-庞泉沟远景区)。预测结果对该区域进一步找矿具有一定指导意义。
[Abstract]:Wutai-#china_person0# area of Shanxi Province is an important Precambrian sedimentary metamorphic iron ore metallogenic area in North China Craton. Based on the new metallogenic theory and the technique of solid mineral prediction, the multivariate information of geology, geochemistry and geophysics are analyzed by using the GIS software platform. The conceptual model of sedimentary metamorphic iron ore prospecting in the study area is established. Combined with grid element method and evidence weight method, iron ore resources were predicted in the study area. According to the calculated posterior probability value and comprehensive analysis of metallogenic geological conditions, 2 A grade metallogenic scenic spots (Wutai Mountain area) have been delineated. Yuanjiacun Vision area) and 5 B grade metallogenic distant areas (Sanggan River-Lingqiu County Sanggan River-Lingqiu County Sanggan Town-Shentangbao Township Scenic spot Hengshan Iron Mine Scenic area Xuangang Town-Changlianggou Town Scenic spot. The predicted results have certain guiding significance for further prospecting in Guandi Mountain-Pang Quangou prospective area.
【作者单位】: 北京大学地球科学与空间科学学院造山带与地壳演化教育部重点实验室;中国地质大学(北京)国土资源与高新技术研究中心;中国地质大学(北京)北京市国土资源信息开发研究重点实验室;
【基金】:国家重点基础研究发展计划“973”项目(2012CB416605)
【分类号】:P618.31
【正文快照】: 权重法成矿预测孙亮1,潘懋1,陈建平2a,2b,张,

本文编号:1376997

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