三山岛金矿床深部三维地质模型与资源量估算  

3D geological model and resource estimation of the deep‑seated part of the Sanshandao Gold Deposit

作　　者：邴元敏 李顺达 黄丙湖[1] Bing Yuanmin;Li Shunda;Huang Binghu(College of Oceanography and Space Informatics,China University of Petroleum(East China);Department of Architectural Engineering,Rizhao Polytechnic)

机构地区：[1]中国石油大学(华东)海洋与空间信息学院 [2]日照职业技术学院建筑工程系

出　　处：《黄金》2025年第3期66-71,共6页Gold

基　　金：国家自然科学基金项目(41976184)。

摘　　要：为助力三山岛金矿床深部资源的开发利用,采用多源数据融合法,收集整理相关地质资料,创建综合地质数据库,进行地质-地球物理综合分析,实现了对断裂深部延伸趋势的推测,构建了地表、地球物理、断裂、蚀变带、矿体等5种数字化地质模型,在三维地质模型透明可视化集成的基础上,研究了其分布规律和相互关系,进而创建矿体模型,采用距离幂次反比法估算矿体资源量。研究结果表明,矿体主要赋存于黄铁绢英岩化碎裂岩中,在走向、倾向上受三山岛断裂控制,主要分布在其下盘,且富集于主断裂由陡变缓的转折处,在F3断裂上被切割;采用距离幂次反比法估算矿体资源量,矿体1金金属量为145.47 t,并验证了结果的可靠性。To support the development and utilization of deep-seated resources in the Sanshandao Gold Deposit,this study employs a multi-source data integration approach.Geological data were collected and organized to establish a comprehensive geological database.Through integrated geological-geophysical analysis,the deep extension trends of faults were inferred.5 digital geological models were constructed,including surface,geophysical,fault,alteration zone,and orebody models.Based on transparent visualization integration of the 3D geological model,the distribution patterns and interrelationships of these elements were investigated.A model of the orebody was then developed,and the ore resources were estimated using the Distance Power Inverse Weighting method.Results indicate that the ore bodies are primarily hosted in sericitized and silicified cataclasite,controlled by the Sanshandao Fault in strike and dip directions,and mainly distributed in its footwall.Gold enrichment occurs at the transition zone where the main fault steepens to flattens,with truncation observed at the F3fault.Using the Distance Power Inverse Weighting method,the estimated gold metal content of Orebody 1 is 145.47 t,and the reliability of the results was verified.

关 键 词：三山岛金矿床 深部 三维地质模型 资源量 估算 地质-地球物理 距离幂次反比法 

分 类 号：TD11[矿业工程—矿山地质测量]