山西浑源罗框金矿隐伏矿体三维预测  

Three-dimensional prediction of concealed orebody in the Luokuang gold deposit,Shanxi Province

作　　者：张权平 陈建平[1,2] 武彦博 Zhang Quanping;Chen Jianping;Wu Yanbo(School of Earth Sciences and Resources,China University of Geosciences（Beijing）,Beijing 100083,China;The Beijing Key Laboratory of Development and Research for Land Resources Information,Beijing 100083,China;No.217 Geological Party,Shanxi Provincial Geological Prospecting Bureau,Datong 037008,Shanxi,China)

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]北京市国土资源信息开发研究重点实验室,北京100083 [3]山西省地质勘查局二一七地质队,山西大同037008

出　　处：《地质学刊》2018年第3期412-421,共10页Journal of Geology

基　　金：科技部国家重点研发计划项目(2017YFC0601502)

摘　　要：通过对山西浑源张旺矿区成矿地质背景的分析及基础地质资料的搜集,利用三维可视化建模技术构建张旺矿区罗框金矿体的三维地质模型,确定有利控矿要素并构建找矿预测模型,在此基础上,根据分形理论确定该地区地质条件符合分形特征。然后利用最优异常搭配法,确定以最佳异常搭配数为3、最佳收缩空间距离为10 m圈定找矿远景区;使用叠合信息量法证明最优异常搭配法圈定结果的准确性,并对找矿远景区进行分级,最后圈定找矿靶区2处。结果表明,张旺矿区仍有一定的找矿潜力,后期应重点勘查该地区Au2矿体东部末端附近及Au3出露矿体的深部与F14断裂交会区。Based on analysis of metallogenic geological conditions and collection of basic geological data, a 3D geological model ofthe Luokuang gold deposit of Zhangwang ore district in Hunyuan, Shanxi Province is established by 3D visualization modelling technology and a prospecting prediction model is created after delineating the favorable orecontrolling elements. According to the fractal theory, it is found that the geological conditions in the area conform to the fractal characteristics. The optimal anomaly collocation is appliedto choose optimal collocation of 3 anomalies and the best shrinking distance of 10 meters to delineate oreprospecting areas. The overlapping information value method is used to test the accuracy of this delineation, grade prospective provinces and mark off 2 targets. Theresult shows that the Zhangwang deposit has prospecting potential, and attention should be paid to the eastern end of mineralized bodyAu2, and the intersection of deep area of outcropped mineralized body Au3 and Fault F14 .

关 键 词：张旺矿区罗框金矿 SURPAC软件 三维地质建模 成矿预测 信息量法 山西浑源 

分 类 号：P612[天文地球—矿床学]