• 首页|本刊简介|在线投稿|过刊浏览|高级检索|专家风采|学习园地|期刊论坛|联系我们
黔西北香炉山铜矿床赋矿主岩矿物岩石学研究
A study of the mineralogy and petrology of the copper-hosting rocks in the Xianglushan copper deposit, Weining, northwest Guizhou
投稿时间:2016-09-26  
中文关键词:矿物岩石学  玄武岩型铜矿  热液期  香炉山铜矿  黔西北
英文关键词:mineralogy and petrology  basalt type copper deposit  hydrothermal stage  Xianglushan copper deposit  northwest Guizhou
基金项目:贵州省地质矿产勘查开发局地质科研项目
作者单位E-mail
李松涛 贵州省地质矿产勘查开发局105地质大队, 贵州 贵阳 550018
中国科学院 地球化学研究所 矿床地球化学国家重点实验室, 贵州 贵阳 550002
中国科学院大学, 北京 100049 
 
陈庆刚 贵州省地质矿产勘查开发局105地质大队, 贵州 贵阳 550018 Cqg103@163.com 
夏勇 中国科学院 地球化学研究所 矿床地球化学国家重点实验室, 贵州 贵阳 550002  
何明友 成都理工大学, 四川 成都 610059  
刘建中 贵州省地质矿产勘查开发局105地质大队, 贵州 贵阳 550018  
周光红 中国科学院 地球化学研究所 矿床地球化学国家重点实验室, 贵州 贵阳 550002  
赵平 贵州省地质矿产勘查开发局105地质大队, 贵州 贵阳 550018  
张海 贵州省地质矿 产勘查开发局113地质大队, 贵州 六盘水 553001  
摘要点击次数: 722
全文下载次数: 544
中文摘要:
      黔西北威宁地区香炉山铜矿床位于二叠系峨眉山玄武岩组第3段(P3β3)顶部与宣威组(P3x)底部之间,属于玄武岩型铜矿床。针对其含矿地层宏观地质特征与赋矿主岩矿物岩石学组构,本文以野外地质为基础,系统开展岩矿鉴定、扫描电镜与电子探针分析等研究,结果表明,本矿床赋矿主岩为岩屑粉砂岩的矿石矿物为辉铜矿、斑铜矿、黝铜矿和孔雀石,脉石矿物为长石、石英、绿泥石和碳质物等;赋矿主岩为火山角砾岩的矿石矿物为自然铜、斑铜矿、黄铜矿、辉铜矿、黝铜矿和孔雀石,其脉石矿物为石英、绿泥石、白云石和粘土矿物等,按其主要矿物含量,原生矿石可分为自然铜+辉铜矿+赤铁矿矿石、自然铜+黄铜矿+黝铜矿矿石、黄铜矿+斑铜矿+赤铁矿矿石3种自然类型。根据矿物共生组合与相互穿插关系,本矿床成矿作用可分为热液期和表生期,其中,热液期矿石矿物的形成顺序为斑铜矿→黄铜矿—黝铜矿—自然铜→辉铜矿,表生期形成孔雀石、赤铜矿、赤铁矿、钛铁矿、褐铁矿等矿物。
英文摘要:
      The Xianglushan copper deposit in Weining of northwest Guizhou is located in the copper bed between the top of the third unit of Emeishan basalt Formation and the bottom of Xuanwei Formation, and belongs to basalt type copper deposit. In order to study the geological characteristics of copper-hosting strata and mineralogical and petrological characteristics of copper-hosting rocks, the authors carried out rock-mineral determination, scanning electron microscope and electron microprobe analysis systematically in combination with field geological survey. The results show that the ore minerals of lithic siltstone are mainly composed of chalcocite, etrahedrite, bornite and malachite, and gangue minerals are mainly feldspar, quartz, chlorite and carbonaceous materials; the ore minerals of volcanic breccia are mainly composed of pyrite, bornite, chalcopyrite, chalcocite, tetrahedrite and malachite, and gangue minerals are mainly quartz, chlorite, dolomite and clay minerals. According to main mineral content, primary ores can be divided into three natural types, i.e., natural copper + chalcocite + hematite ore, natural copper + chalcopyrite + tetrahedrite ore and chalcopyrite + bornite + hematite ore. On the basis of mineral assemblages and intercalation relationship, mineralization can be divided into hydrothermal stage and supergene stage. The sequence of ore minerals at the hydrothermal stage is bornite→chalcopyrite→tetrahedrite→natural copper→chalcocite. At the supergene stage, malachite, hematite, hematite, ilmenite and limonite have been formed.
李松涛,陈庆刚,夏勇,何明友,刘建中,周光红,赵平,张海,2018,黔西北香炉山铜矿床赋矿主岩矿物岩石学研究[J].岩石矿物学杂志,(2):259~269.
查看全文  查看/发表评论  下载PDF阅读器
关闭
您是本站第 4998220位访问者  京ICP备05032737号-8
版权所有:《岩石矿物学杂志》编辑部
主管:中国科学技术协会 主办:中国地质学会岩石学专业委员会 中国地质学会矿物学专业委员会 中国地质科学院地质研究所
技术支持:北京勤云科技发展有限公司

京公网安备 11010202007772号

function PdfOpen(url) { var win="toolbar=no,location=no,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes"; window.open(url,"",win); } function openWin(url,w,h){ var win="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=" + w + ",height=" + h; controlWindow=window.open(url,"",win); } &et=2E8E91ED88C2FEB76F65B226D4EF4D231E7F033AD95F26202094B11B07D9FDBA3D25A302C378E0C9A6960ADF673389BDCBC9C678B84CF1D5A25E2E9D5DCE94126951C797158371C7830588E41265AF83FB5E243AF94C09852939EBA639D0D8A4B341A73E0474F9FCA594235B2D745F92FAE160DB26DA0B738B1978081FF5C14A83AE3F2CF809D7A0&pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=25F5F0F8F42BD24D151314EDEA002993&yid=EA357AD73C8E13BC&aid=&vid=&iid=0B39A22176CE99FB&sid=0F7768518993EDDE&eid=1A363081E1FF7014&fileno=20180206&flag=1&is_more=0"> var my_pcid="E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B"; var my_cid="621CF755B1A341E5"; var my_jid="25F5F0F8F42BD24D151314EDEA002993"; var my_yid="EA357AD73C8E13BC"; var my_aid="";