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刘国栋,李娟.胶东招平断裂——2200m特大型金矿体地质特征与找矿标志[J].山东国土资源,2019,35(1):
胶东招平断裂——2200m特大型金矿体地质特征与找矿标志
Geological Characteristics and Prospecting Criteria of Super Large Scale Gold Deposit of Zhaoping Fault Zone at the Depth of 2200m in Jiaodong Area
  
DOI:10.12128/j.issn.1672-6979.2019.01.001
中文关键词:  对称成矿  九曲蒋家208断裂  水旺庄  招平断裂  胶东
英文关键词:Symmetrical mineralization  No.208 fault in Jiuqujiangjia  Shuiwangzhuang  Zhaoping fault zone  Jiaodong area
基金项目:
作者单位
刘国栋 山东省第六地质矿产勘查院招远市地质勘查与地质灾害应急技术指导中心 
李娟 招远罗山省级地质公园管理处 
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中文摘要:
      为加强招平断裂带深部找矿,总结提出“胶西北三大断裂赋矿深度对称、矿体规模对称”的找矿新思路,在招平断裂水旺庄矿区进行验证,取得突破。并首次制作跨四探矿权的5000m地质剖面图,研究、指导水旺庄深部找矿,将招平断裂勘查深度从1500m延伸至2200m以上,新增金资源量110t,使招平断裂带提交金资源量达到1080t,成为千吨级控矿断裂,其中2号主矿体,新增资源量近90t,其资源量增加至120余吨,单矿体达到特大型金矿的规模。根据最新研究成果,发现招平断裂北段九曲蒋家208断裂和破头青断裂相互叠加影响形成千米级巨厚蚀变带,按蚀变程度由浅至深划分为5层,其中浅部一、二层由破头青断裂控制,中间第三层由破头青和九曲蒋家208断裂共同控制,深部四、五层由九曲蒋家208断裂控制,厚大矿体即赋存于第四层绢英岩化花岗质碎裂岩带内。新思路、新方法的应用极大提高了工程部署合理性,二期详查钻孔见矿率达到100%,取得重大找矿成果,呈现了招平断裂北段深部轨迹。确定九曲蒋家208断裂为招平断裂北段深部找矿的主要目标。
英文摘要:
      In order to strengthen deep ore prospecting in Zhaoping fault belt, new prospecting ideas have been summarized as follows: the ore bearing depth and ore body scale of three main faults in northwestern Jiaodong Peninsula are symmetrical, which has been verified in Shuiwangzhuang mining area of Zhaoping fault belt . By the guidance of the profile which cross 4 rights of prospecting at the depth of more than 5000m, the depth of prospecting work extends from 1500M to 2200m, newly increased gold resources are 170t, and total amount of submitted gold resources of Zhaoping fault belt are 1080t. The newly increased gold resource of No.2 ore body is nearly 90t, the amount of gold resource has increased to more than 120t, and single ore body can reach super large scale. According to the research, it is found that thousand meters scale thickness alteration zone has been formed by the superposition of No.208 fault in Jiuqujiangjia and Potouqing fault in northern Zhaoping fault belt. According to alteration degree, it can be divided into five floors from shallow to deep part,The first and second floor is controlled by Potouqing fault, the third floor is controlled by Potouqing fault and Jiuqufault, and the fouth and fifth floor is controlled by Jiuqu fault. The thick ore body occurres in the phyllic granitic cataclasite of the fouthfloor alteration zone.The application of new ideas and new methods has greatly improved the rationality of arrangement which has brought about great achievements that the rate for ore discovery of drill holes reache 100%. The deep trajectory of Zhaoping fault belt is presented which shows that No. 208 fault in Jiuqujiangjia is the major deep prospecting target in northen Zhaoping fault belt.
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