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黄金科学技术 ›› 2017, Vol. 25 ›› Issue (3): 46-53.doi: 10.11872/j.issn.1005-2518.2017.03.046

• 专题报道 • 上一篇    下一篇

胶东邓格庄金矿床深部成矿特征及找矿方法组合

万鹏1,丁正江2,3*,胡弘3,4,吴凤萍1,程蓉蓉1,邹键 1   

  1. 1.山东省第三地质矿产勘查院,山东  烟台   264004;
    2.中国地质大学(北京),北京   100083;
    3.山东省地质勘查工程技术研究中心,山东  济南   250013;
    4.山东省地质矿产勘查开发局,山东  济南   250013
  • 收稿日期:2017-03-20 修回日期:2017-04-28 出版日期:2017-06-30 发布日期:2017-09-11
  • 通讯作者: 丁正江(1977-),男,安徽蒙城人,博士,研究员,从事矿物学、岩石学及矿床学研究工作。ytdzhj@126.com
  • 作者简介:万鹏(1983-),男,辽宁铁岭人,工程师,从事矿产勘查及区域成矿研究工作。23921283@qq.com
  • 基金资助:

    山东省泰山学者建设工程专项经费“胶东型金矿的构造岩浆背景和深部找矿关键技术”(编号:201511076)、山东省自然科学基金项目“胶东中生代盆地边缘成矿系统金及多金属成矿作用研究”(编号:ZR2016DM01)、山东省财政项目“山东省胶莱盆地东北缘地区金及多金属矿成矿规律及找矿潜力研究”(编号:鲁勘字(2015)17号)和山东省地矿局科技攻关项目“胶东东部金矿空间分布及类型研究”(编号:KY201501)联合资助

Deep Metallogenic Characteristics of Denggezhuang Gold Deposit in Jiaodong and Its Prospecting Method Combinations

WAN Peng,DING Zhengjiang,HU Hong,WU Fengping,CHENG Rongrong,ZOU Jian   

  1. 1.3th Geology & Mineral Resources Survey Institute,Shandong,Yantai   264004,Shandong,China;
    2.China University of Geosciences(Beijing),Beijing    100083,China;
    3.Shandong Provincial Engineering Research Center for Geological Prospecting,Jinan   250013,Shandong,China;
    4.Shandong Provincial Bureau of Geology & Mineral Resources,Jinan    250013,Shandong,China
  • Received:2017-03-20 Revised:2017-04-28 Online:2017-06-30 Published:2017-09-11

摘要:

牟乳成矿带是胶东地区重要的金成矿带之一,近年来其深部找矿取得了较好效果。在分析总结邓格庄深部金矿床地质特征、矿体空间分布及围岩蚀变特征的基础上,提出了深部找矿方法,分析了深部找矿潜力。邓格庄金矿床为产于侏罗纪玲珑型花岗岩中的大型金矿,深部主矿体赋存标高为-350~-733 m,矿体受金牛山主断裂西侧分支断裂的控制。分析认为,NNE向与NE向断裂交会部位、断裂走向转折部位及倾角由陡变缓的部位是成矿有利地段。研究提出,结合阶梯式成矿模式理论,可控源大地音频电磁测深、井中激电测量、EH4系统、构造叠加晕测量和钻探验证等是开展深部找矿的有效方法组合。进一步指出,邓格庄金矿具有良好的深部找矿前景,Ⅱ-1号矿体深部54~86勘探线和Ⅲ-6号矿体深部62~110勘探线2个区域为深部找矿的有利靶区。

关键词: 深部找矿, 综合找矿方法, 阶梯式成矿模式, 盲矿预测, 邓格庄金矿, 牟乳成矿带, 胶东地区

Abstract:

 As one of the most important gold metallogenic belts in Jiaodong region,the deep prospecting in Muping-Rushan metallogenic belt has got good results in recent years.Based on the characteristics of geology and spatial distribution of orebodies,the wall rock alterations in depth of Denggezhuang gold deposit,this study presents deep prospecting method and gives potential evaluation.Denggezhuang gold deposit is a large gold deposit,which hosts in Linglong type granites of Jurassic.The deep main orebody occurs in the elevation of -350 to -733 m,and it is controlled by the branch faults on the west of Jinniushan main fault.The mineralization favorable area should be the cross points of the NNE-striking and NE-striking faults,the turning point of the strike of faults and the location where the dip is slowed by steepness.The combination of effective methods for deep prospecting is step metallogenic model,CSAMT,borehole induced polarization measurement,EH4 system and comprehensive studies for the tectonics and geochemical halo.The combination of previous methods indicates that Muping-Rushan metallogenic belt has a good prospect of deep prospecting,as well as the regions of depth of Ⅱ-1 orebody 54 to 86 exploration lines  and depth of  Ⅲ-6 orebody 62 to 110 exploration lines are the favorable target area for the deep exploration.

Key words: deep prospecting, comprehesive prospecting method, step metallogenic model, blind ore predition, Denggezhuang gold deposit, Muping-Rushan metallogenic belt, Jiaodong area

中图分类号: 

  • P618.51 

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