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[an error occurred while processing this directive]Potential Analysis of Gold Resources in Qianchuiliu Mining Area, Northeast Margin of Jiaolai Basin,Shandong Province
Received date: 2019-12-30
Revised date: 2020-06-14
Online published: 2020-11-05
The Qianchuiliu mining area of Muping in Yantai City is located in the northeast margin of Jiaolai Basin,Shandong Province.It shows good location and metallogenic condition with Liaoshang gold deposit (super large) on the west and Xilaokou gold deposit(large) and Xijingkou gold deposit(medium) on the east.However,there has been no breakthrough in ore prospecting in this area through geological work for many years,and the prospecting has fallen into confusion.In this paper,base on the introduction of the geological background of the Qianchuiliu mining area,we sorted out and summarized the geological,geophysical and geochemical data obtained in this area.Then based on the characteristics of the surrounding typical gold deposits and the main orebodies in each deposit,we summarized the gold metallogenic regularity and the metallogenic characteristics in this area.According to above studies,the reasons why the prospecting effect is not obvious in this area in the past are found and discussed.It is considered that there are some problems,including the selection of geophysical methods,excessive engineering spacing,too much attention to the industrial grade of surface samples,and lack of systematic understanding of mineralization.Furthermore,two possible prospecting ideas were proposed:Firstly,it is considered that the four gold mining areas,e.g.,Liaoshang,Qianchuiliu,Xilaokou and Xijingkou are controlled by the same NE-trending large fault zone from west to east,the inclination angle gradually changed from steep to gradual;Secondly,the above four mining areas are controlled by a large fault zone in the east-west direction,the inclination angle gradually changed from steep to gentle from north to south.Gold orebodies exists in the large fracture zone,the shallow orebody is characterized by steep dip,scattered and small scale.Whereas,the deep orebody mainly exists in the fault fracture zone from steep to slow,distinguished by large scale and stability.Notably,there is a large ore-free interval between shallow and deep ore bodies.Further analysis shows that in the Qianchuiliu mining area between Liaoshang and Xilaokou,although there are no industrial orebodies on the surface or shallow surface,a large-scale fracture zone has been found,which should be brought into the same metallogenic system as the surrounding gold deposits.No matter which model controls the ore deposits,in NE or near EW direction,it is inferred that there are a series of gold orebodies in Qianchuiliu mining area,which are relatively gently dipping and inclined to SE or S,and exist in the place from steep to gentle in the fracture zone.Therefore,the gold resource potential is between the Liaoshang and Xilaokou gold deposit,and it is concluded that there is a great prospecting potential.
Liuan DUAN , Youfeng WEI , Xiongjun CHEN , Xiaomeng HAN , Yuncheng GUO . Potential Analysis of Gold Resources in Qianchuiliu Mining Area, Northeast Margin of Jiaolai Basin,Shandong Province[J]. Gold Science and Technology, 2020 , 28(5) : 701 -711 . DOI: 10.11872/j.issn.1005-2518.2020.05.027
自然资源部:《中国矿产资源报告(2020)》发布
自然资源部日前发布《中国矿产资源报告(2020)》(以下简称《报告》)。《报告》披露,2019年,全国地质勘查投资993.4亿元,其中,油气地质勘查投资821.29亿元,增长29%;非油气地质勘查投资172.11亿元,下降0.9%。全国新发现矿产地79处,其中大中型55处。截至2019年底,天然气、锰、铝土等34种重要矿产资源储量增长。采矿业固定资产投资增长24.1%,10种有色金属、黄金、水泥等产量和消费量继续居世界首位。
《报告》指出,我国矿山生态修复力度不断加大。研究制定鼓励和引导社会资本投入矿区生态修复的政策措施,落实国家重大战略决策,部署开展长江经济带、黄河流域、京津冀周边及汾渭平原等重点区域历史遗留矿山生态修复工作。积极推进绿色勘查标准修订完善,大力开展绿色勘查项目示范工作。各地通过规划、标准、政策的制定实施,全面推进绿色矿山建设。
我国矿产资源管理进一步完善。2019年12月,自然资源部印发《关于推进矿产资源管理改革若干事项的意见(试行)》,对建立和实施矿业权出让制度、优化石油天然气矿业权管理、改革矿产资源储量分类和管理方式等作出了一系列重大制度创新;发布了修改后的《矿山地质环境保护规定》《土地复垦条例实施办法》。
2020年,我国全面启动了新一轮矿产资源规划编制工作,研究起草了地质勘查行业相关监督管理办法,实施了新的矿产资源储量分类标准,优化了矿业权管理出让方式,完善了古生物化石监管体系,进一步提升了矿产资源管理水平。新冠肺炎疫情发生后,自然资源部推出落实“六稳六保”要求的措施,助力企业复工复产。
基础地质调查工作程度进一步提高。持续推进南海北部神狐海域天然气水合物勘查开采先导试验区建设,攻克深海浅软地层水平井钻采技术装备等难题,实现了从“探索性试采”向“试验性试采”重大跨越,成功实施第二轮试采。地质资料馆藏进一步丰富,地质资料服务更加精准、便捷、高效。
矿产资源领域研究成果显著。在成矿理论和关键技术方面有新突破,推进矿产资源领域科技创新,建设多个重点实验室和工程技术创新中心。推进地质矿产标准化工作,为地质矿产行业高质量发展提供了技术保障。
地质矿产国际合作进一步加强。积极落实第二届“一带一路”国际合作高峰论坛成果,全面推动地质矿产领域双边与多边合作,通过中国国际矿业大会、中国-东盟矿业合作论坛等国际交流平台,进一步巩固并发展与有关国家在矿业领域的务实合作。
(来源:中国自然资源报)
http://www.goldsci.ac.cn/article/2020/1005-2518/1005-2518-2020-28-5-701.shtml
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