东天山卡拉塔格金岭—黄滩金铜矿床的发现及其意义
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  • 英文篇名:Discovery of the Jinling-Huangtan Au-Cu deposit in the Kalatag,Eastern Tianshan Orogen and its significance
  • 作者:邓小华 ; 李月臣 ; 许强奋 ; 刘洋 ; 张锐 ; 李德东 ; 徐飞
  • 英文作者:DENG Xiao-hua;LI Yue-chen;XU Qiang-fen;LIU Yang;ZHANG Rui;LI De-dong;XU Fei;Beijing Institute of Geology for Mineral Resources;School of the Earth Sciences and Resources,China University of Geosciences (Beijing);Geophysical Prospecting Team,Nonferrous Geoexploration Bureau;Sinotech Minerals Exploration Co,Ltd;
  • 关键词:金岭-黄滩 ; 叠加型矿床 ; 卡拉塔格 ; 东天山
  • 英文关键词:Jinling-Huangtan deposit;;superimposed mineralization;;Kalatag;;eastern Tianshan Orogen
  • 中文刊名:YSJS
  • 英文刊名:Mineral Exploration
  • 机构:北京矿产地质研究院;中国地质大学(北京)地球科学与资源学院;新疆维吾尔自治区有色物探队;中色地科矿产勘查股份有限公司;
  • 出版日期:2018-07-28
  • 出版单位:矿产勘查
  • 年:2018
  • 期:v.9;No.55
  • 基金:国家重点研发计划(编号:2018YFC0604006);; 国家973项目(编号:2014CB440803);; 国家自然科学基金项目(编号:41572077);; 中国地质调查项目(编号:1212011140056、121201004000172201-54)联合资助
  • 语种:中文;
  • 页:YSJS201807005
  • 页数:12
  • CN:07
  • ISSN:11-5875/TD
  • 分类号:20-31
摘要
东天山卡拉塔格地区发育了典型的古弧盆体系,为查明新发现金岭-黄滩金铜矿床的成因类型,开展了系统的岩相学研究。金岭-黄滩矿床的铜锌矿体受凝灰岩层位控制,以黄铁绢英岩化为特色,显示低阻高极化的地球物理特征,而金矿体受断裂构造控制,呈局部富集,以硅化为特色,具有相对高阻高极化特征。其成矿过程可分为VMS成矿期(包含黄铁矿、黄铜矿-闪锌矿阶段)、热液叠加期(包含石英-硫化物)和表生期。金岭-黄滩矿床成因类型为典型的喷流沉积-热液叠加成矿,即早古生代海底火山喷流沉积作用形成的铜锌矿化,叠加了后期岩浆热液作用形成的金矿化;这一新的成矿类型丰富了卡拉塔格矿集区成矿作用,扩展了进步一步找矿思路和空间。
        A typical paleo-arc basin system was developed in Karatag area of the East Tianshan Mountains. A systematic petrographic study was carried out,in order to identify genetic types of newly discovered Au-Cu deposit locating in Jinling-Huangtan. The Cu-Zn ore body of the Jinling-Huangtan deposit is controlled by tuff horizon,characterized by yellow iron shale lithology with geophysical characteristics of low-resistance and high polarization. While the Au orebody is controlled by fault structure and locally enriched,with quartz alteration and characterized by geophysical signature of high resistivity and high polarization. The mineralization process of Jinling-Huangtan Au-Cu deposit can be divided into VMS,hydrothermal overprinting and supergene mineralization periods. Among them,the VMS period can be further more divided into pyrite and chalcopyrite-sphalerite stages. In this contribution,we proposed that the Jinling-Huangtan deposit could be classified as superimposed mineralization,namely,Early Paleozoic volcanic exhalation sedimentation associated with massive Cu-Zn mineralization,which superimposed by Au mineralization related to magmatic hydrothermalism.
引文
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