青海柳弯区铅锌铜多金属矿床地质特征及控矿条件

详细信息    查看全文 | 推荐本文 |

英文篇名：Geological Characteristics and Ore-controlling Conditions of the Liuwanqu Pb-Zn-Cu Polymetallic Deposit in Qinghai Province 作者：李文忠 ; 袁桂林 ; 谢海林 ; 宋生春 ; 宋维刚 ; 巩志远 ; 马晓萍 ; 李青 英文作者：LI Wenzhong;YUAN Guilin;XIE Hailin;SONG Shengchun;SONG Weigang;GONG Zhiyuan;MA Xiaoping;LI Qing;The Fourth Institute of Geology Exploration of Qinghai Province;Key Laboratory of Shale Gas Resources in Qinghai Province;China University of Geosciences of Beijing;Bureau of Geology and Mineral Exploration and Development of Qinghai Province; 关键词：VMS型 ; 柳弯区矿床 ; 矿床地质 ; 控矿条件 英文关键词：VMS-type;;Liuwanqu deposit;;geology of mineral deposit;;ore-controlling conditions 中文刊名：XBDI 英文刊名：Northwestern Geology 机构：青海省第四地质勘查院;青海省页岩气资源重点实验室;中国地质大学(北京);青海省地质矿产勘查开发局; 出版日期：2019-03-05 出版单位：西北地质 年：2019 期：v.52;No.211 基金：中央财政青藏专项“青海省祁连县走廊南山南坡一带铜多金属调查评价”(1212011221049);; 青海省地质勘查基金“青海省祁连县柳弯区铜多金属矿预查”(T63120151102051934)联合资助 语种：中文; 页：XBDI201901013 页数：10 CN：01 ISSN：61-1149/P 分类号：127-136

摘要

柳弯区铅锌铜多金属矿床是北祁连地区较为重要的VMS型矿床之一。由于本区地质背景复杂,矿体受后期构造改造严重,矿体分布规律难以掌握,一直未能取得找矿突破。笔者结合最新勘查成果,对矿区地质、矿床地质特征进了分析,总结了矿区矿化带特征、矿体特征、矿石组构特征、矿物成分及伴生关系、围岩蚀变特征等;对本区矿床控矿条件进行了讨论,并和国内外典型矿床进行了对比分析。本区成矿明显受地层、构造及变质作用等因素的影响。在柳弯区35线以西,矿体主要控制高程为3 000～3 500m;而柳弯区35线以东,矿体主要控制高程为2 700～3 000m。矿体向深部仍未圈闭,深部找矿潜力较大。
        The Liuwanqu deposit is one of the most important VMS-type deposits in North Qilian area.However,due to the complexity of the geological background in this region,the ore body has been reformed seriously by the later structure,the distribution rule of the ore body is difficult to grasp,and the prospecting breakthrough has not been achieved.In this paper,combined with the latest exploration results,the geology of mining area and deposit have been analyzed,and the characteristics of mineralization zone,orebody,ore fabric,mineral composition and associated relationship,the alteration of surrounding rock and so on have been sμmmarized.The ore-controlling conditions of the ore deposits in this area have been discussed,which have been compared with typical ore deposits at home and abroad.The ore-forming in this area is obviously influenced by stratigraphic,structural and metamorphic factors.The distribution of ore bodies has a certain regularity.In the west of the 35 line of the Liuwanqu deposit,the mainly control heights of the ore body are 3000～3500 m,while the ones in the east are 2700～3 00 m.The ore body is not yet trapped to the deep part,which has large potential of deep prospecting.

引文

丛智超.青海北祁连铜多金属矿床成矿规律研究(博士学位论文)[D].吉林:吉林大学,2017,1-214.CONG Zhichao.Study on Metallogenic Regularity of Copper Polymetallic Deposit in the North Qilian,Qinghai(Doctoral dissertation)[D].Jilin:Jilin University,2017,1-214.
    郭彦汝,王瑾.北祁连尕大坂黑矿型矿床特征及形成环境[J].西北地质,2014,47(2)191-197.GUO Yanru,WANG Jin.Characteristics and Forming Setting Analysis of Gadaban Kuroko-type Deposit in Northern Qilian[J].Northwestern Geology,2014,47(2)191-197.
    郭彦汝.青海北祁连尕大坂地区黑矿型矿床特征及成矿环境探讨(硕士学位论文)[D].青海:青海大学,2015,1-86.GUO Yanru.Characteristics and Forming Setting Analysis of Gadaban Area Kuroko-type Deposit in Northern Qilian,Qinghai(Master dissertation)[D].Qinghai:Qinghai University,2015,1-86.
    郭彦汝,王瑾,王潇洒,等.北祁连尕大坂铜铅锌矿床特征及形成环境[J].青海大学学报(自然科学版),2014,32(3):51-57.GUO Yanru,WANG Jin,WANG Xiaosa,et al.Characteristics and formation setting analysis of Gadaban copperlead-zinc deposit in northern Qilian[J].Journal of Qinghai University(Natural Science Edition),2014,32(3):51-57.
    郭周平,李文渊,贾群子,等.北祁连塞浦路斯型铜矿床地质地球化学特征对比研究[J].地质与勘探,2010,46(1):76-84.GUO Zhouping,LI Wengyuan,JIA Qunzi,et al.A contrastive study on the geological and geochan ical characteristics of Cyprus-type copper deposits in North Qilian mountain,in China[J].Geology and Prospecting,2010,46(1):76-84.
    侯增谦,浦边徹郎.古代与现代海底黑矿型块状硫化物矿床矿石地球化学比较研究[J].地球化学,1996,25(3):227-228.HOU Zengqian,PUBIAN Yilang.A comparative study on geochemistry of sulfide ores from the Kuroko-type deposits on ancient and modern sea-floor[J].Geochimica,1996,25(3):227-228.
    贾群子,杨忠堂,肖朝阳.祁连山铜金钨铅锌矿床成矿规律和成矿预测[M].北京:地质出版社,2007,1-313.JIA Qunzi,YANG Zhongtang,XIAO Chaoyang.The metallogenic regularity and metallogenic prognosis of the CuAu-W-Pb-Zn deposit in Qilian Mountains[M].Beijing:Geological House,2007,1-313.
    李磊,张庆元,李龙江,等.下柳沟-白柳沟铜多金属矿区地质特征及找矿潜力分析[J].青海大学学报(自然科学版),2015,33(6):85-91.LI Lei,ZHANG Qingyuan,LI Longjiang,et al.The analysis of geologic feature and ore prospecting in Xialiugou-Bailiugou copper polymetallic ore deposit[J].Journal of Qinghai University(Natural Science Edition),2015,33(6):85-91.
    李世金.祁连造山带地球动力学演化与内生金属矿产成矿作用研究(博士学位论文)[D].吉林:吉林大学,2011,1-193.LI Shijin.Geodynamic Evolution of Qilian Orogenic Belt and Metallogenesis of Endogenous Metals[D].Jilin:Jilin University,2011,1-193.
    李文渊.祁连山岩浆作用有关硫化物矿床成矿与找矿(博士学位论文)[D].西安:西北大学,2004,1-210.LI Wenyuan.Metallogenic Process and Exploration of Magmatic-association Metallic Sufide Deposits of Qilian Mountain,Northwest China[D].Xi'an:Northwest U-niversity,2004,1-210.
    李文渊.块状硫化物矿床的类型、分布和形成环境[J].地球科学与环境学报,2007,29(4):13-33.LI Wenyuan.Classification,Distribution and Forming Setting of Massive Sulfide Deposits[J].Journal of Earth Sciences and Environment,2007,29(4):13-33.
    李文忠,袁桂林,李磊,等.青海弯阳河地区铜铅锌多金属矿床地质特征及找矿方向[J].甘肃冶金,2017,39(1):86-89.LI Wenzhong,YUAN Guiln,LI Lei,et al.Distribution Characteristics of Ore Belt and Next Working Direction of Wanyanghe Area in Qinghai Province[J].Gansu Metallurgy,2017,39(1):86-89.
    李文忠,袁桂林,巩志远,等.北祁连下柳沟-下沟地区火山岩地球化学特征及大地构造意义[J].甘肃冶金,2017,39(3):27-31.LI Wenzhong,YUAN Guiln,GONG Zhiyuan,et al.Tectonic Sense and Geochemical Behavior of Volcanic Rock in Xialiugou-xiagou Area of North Qilian Area[J].Gansu Metallurgy,2017,39(3):27-31.
    彭素霞,程建新,余吉远,等.北祁连清水沟-白柳沟矿田块状硫化物矿床成矿特征及找矿方向[J].西北地质,2013,46(4):142-150.PENG Suxial,CHENG Jianxin,YU Jiyuan,et al.The Metallogenic Characteristic and Prospecting of the Massive Sulfide Deposit in Qingshuigou-Bailiugou Ore Field,North Qilian Mountain[J].Northwestern Geology,2013,46(4):142-150.
    孙海田,邬介人,沈建忠,等.对北祁连山火山喷溢型贱金属硫化物矿床区域成矿的探讨[J].矿床地质,1993,12(3):189-193.SUN Haitian,WU Jieren,SHEN Jianzhong et al.Types and regional tectonic setting of volcanogenic effusive type base metal sulfide deposits in north Qilian mountain[J].Mineral Deposits,1993,12(3):189-193.
    王国强,李向民,余吉远,等.北祁连清水沟-白柳沟矿田铜多金属矿床流体包裹体研究[J].矿物学报,2012,32(1):33-39.WANG Guoqiang,LI Xiangmin,YU Jiyuan,et al.Fluid Inclusions in Quartz from Qingshuigou-Bailiugou CopperPolymetallic Ore Field.North Qilian Mountains[J].Acta Mineralogica Sinica,2012,32(1):33-39.
    向鼎璞,戴天富.北祁连山火山成因块状硫化物矿床区域成矿特征[J].矿床地质,1985,4(1):66-71.XIANG Dingpu,DAI Tianfu.Regional metallogenic characteristics of the volcanogenic sulfide deposits in northern Qilian mountain[J].Mineral Deposits,1985,4(1):66-71.
    叶庆同.四川呷村银多金属矿床成矿地质特征和成因[J].矿床地质,1991,10(2):107-118.YE Qingtong.Geological characteristics and genesis of the gacun gold-bearing and silver-rich polymetallic deposit,Sichuan Province[J].Mineral Deposits,1991,10(2):107-118.
    袁桂林,李文忠,李磊.青海白柳沟地区铜多金属矿控矿条件及找矿远景分析[J].河北北方学院学报(自然科学版),2015,31(1):29-34.YUAN Guilin,LI Wenzhong,LI Lei.Ore control conditions and Prospect Analysis of Cu-polymetallic ore in the Bailiugou area,Qinghai[J].Journal of Hebei North University(Natural Science Edition),2015,31(1):29-34.
    余吉远,李向民,马中平,等.青海省祁连县清水沟-白柳沟矿田含矿火山岩系年代学研究[J].地质科学进展,2010,25(1):53-55.YU Jiyuan,LI Xiangmin,MA Zhongping,et al.Chronological Study of M eta-Acidic Volcanics in QingshuigouBailiugou Orefield Qilian County of Qinghai Province[J].Advances In Earth Science,2010,25(1):53-55.