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[an error occurred while processing this directive]Applicability Test of Micro-tremor Detection Technology in Jiaojia Gold Field in Northwestern Jiaodong Ore Concentration Area
Received date: 2024-05-30
Revised date: 2024-09-05
Online published: 2024-12-20
In recent years,significant advancements in deep prospecting have been achieved within the three principal gold metallogenic belts of Sanshandao,Jiaojia,and Zhaoping,located in the ore concentration area of the northwestern Jiaodong Peninsula.Notably,the Jiaojia gold field exemplifies a typical fractured altered rock type(Jiaojia type) gold deposit.The confirmed gold resource reserves in this area have surpassed one thousand tons,making it a central focus for geophysical exploration within the Jiaodong gold mining region.Historically,geophysical exploration within the study area predominantly relied on electromagnetic methods,including Controlled Source Audio-frequency Magnetotellurics (CSAMT),Magnetotellurics (MT),and Spectral Induced Polarization(SIP).However,these methods were significantly affected by industrial electromagnetic interference resulting from mining activities.To investigate the deep response characteristics and the appli-cability of geophysical methods to the primary ore-controlling faults in northwestern Jiaodong ore concentration area under conditions of strong industrial electromagnetic interference,this study conducts a micro-motion detection test in the representative ore section of Sizhuang within the Jiaojia gold mine field.This study examines the spatial autocorrelation method through micro-motion detection tests involving multiple circular array transformations and varying radius array transformations.The findings indicate a coupling relationship between the apparent shear wave velocity field characteristics of microtremor detection,and the primary ore fracture.By optimizing test parameters,it is feasible to achieve vertical identification of the Jiaojia fault zone within a 3 000 meter depth interval.It provides a basis for the future micro-motion detection method to carry out related exploration work in northwestern Jiaodong ore concentration area.
Runsheng WANG , Dalei CHEN , Ning WANG , Jian LI , Leilei DONG , Xun WANG , Yu WANG , Zhaokai YIN . Applicability Test of Micro-tremor Detection Technology in Jiaojia Gold Field in Northwestern Jiaodong Ore Concentration Area[J]. Gold Science and Technology, 2024 , 32(6) : 965 -976 . DOI: 10.11872/j.issn.1005-2518.2024.06.158
全面实施绿色勘查,提升绿色勘查“山东模式”
11月20日,山东省自然资源厅召开“山东地质工作的成就与展望”新闻发布会,介绍地质工作在保障国家能源资源安全,服务黄河流域生态保护和高质量发展、乡村振兴、海洋强省等国家及省重大战略方面有关工作情况。
发布会上,山东省自然资源厅党组成员、副厅长闫金明介绍,近年来,山东地质工作得到长足发展。展望未来,省自然资源厅将着力在5个方面做好突破提升。
着力在新一轮找矿行动突破提升。深入推进新一轮找矿突破战略行动,加大金、铁、稀土、晶质石墨等山东优势矿产深勘精查力度,加强铜、金红石型钛、锂等资源潜力矿产和锆、铪等海域矿产调查评价,力争在新探明储量矿种和新增资源量上实现“双突破”,为国家能源资源安全作出新贡献。
着力在地热资源勘查突破提升。聚焦山东地热资源勘查程度低、需求程度高的地区,加强地热能调查评价与勘查,进一步掌握全省地热资源家底,为地热能合理开发利用夯实资源基础。
着力在地质服务突破提升。进一步深化拓展地质服务领域,提升生态地质、海洋地质、旅游地质、农业地质等地质调查支撑服务能力,加快推动地质调查成果转化,为全省经济社会发展提供地质支撑服务。
着力在绿色勘查突破提升。全面实施绿色勘查,进一步提升绿色勘查“山东模式”,加大绿色勘查技术、装备研发应用,加强项目场地生态保护修复,推广绿色勘查典型经验做法,实现地质勘查与生态保护和谐共赢。
着力在科技创新和人才培养突破提升。进一步加强重大地质问题、重要矿产成矿理论研究、矿产勘查关键技术等方面研究攻关,打造现代化勘查装备体系,建实建强高层次科创平台,健全完善人才培养体制机制,努力打造全省地质工作创新发展的新局面,为新时代地质工作“走在前、挑大梁”提供坚实的科技和人才保障。
齐鲁晚报)
http://www.goldsci.ac.cn/article/2024/1005-2518/1005-2518-2024-32-6-965.shtml
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