第39卷第8期
2020年8月地㊀质㊀通㊀报
GEOLOGICALBULLETINOFCHINAVol.39 No.8Aug. 2020
收稿日期:2019-04-15ꎻ修订日期:2020-03-20
资助项目:国家重点研发计划项目课题«深部矿产资源三维找矿预测评价示范»(编号:2017YFC0601506)
作者简介:沈和明(1975-)ꎬ男ꎬ高级工程师ꎬ从事地质调查与矿产勘查ꎮE-mail:shenheming@126.com
通讯作者:龚灵明(1983-)ꎬ男ꎬ高级工程师ꎬ从事地质调查与矿产勘查ꎮE-mail:gonglm403@163.com四川省拉拉铜矿田矿床成因模型
沈和明1ꎬ龚灵明1ꎬ陈㊀辉2ꎬ林鲁军3ꎬ邓远文1ꎬ曾㊀礼1
白雪公主之魔镜魔镜下载
SHENHeming1 GONGLingming1 CHENHui2 LINLujun3 DEN
GYuanwen1 ZENGLi11.四川省地质矿产勘查开发局四ʻ三地质队ꎬ四川峨眉山614200ꎻ
cbc是什么意思2.自然资源部矿产勘查技术指导中心ꎬ北京100120ꎻ
3.中国地质大学(北京)ꎬ北京100083
1.No.403GeologicalParty SichuanBureauofGeologyandMineralResources Emeishan614200 Sichuan Chinaasas
美国麻省理工大学2.MineralExplorationTechnicalGuidanceCenter MinistryofNaturalResources Beijing100120 China
3.ChinaUniversityofGeosciences Beijing Beijing100083 China
摘要:四川省会理县拉拉铜矿田处于川滇被动大陆边缘裂谷系的构造环境ꎬ成矿作用受会理-东川裂陷槽构造-岩浆演化控制ꎮ矿体产于古元古界河口群富钠质的细碧-角斑岩系中ꎮ矿石中金属硫化物的δ34S值集中分布在-1ɢ~4ɢ之间ꎬ均接近0ꎬ具塔式分布特征ꎬ表明硫主要来自火山喷发作用ꎮ矿
blonde是什么意思
床与火山喷流沉积型矿床的流体类型相似ꎬ其包裹体基本为早期石英硫化物中的Ⅰ型包裹体及后期方解石㊁石英硫化物中的Ⅱ和Ⅲ型包裹体ꎬⅠ型包裹体反映为火山喷发沉积期的主成矿阶段ꎻ而Ⅱ型和部分Ⅲ型包裹体反映了晚期流体混溶现象ꎬ显示矿床经历了后期改造ꎮ根据同位素测年数据ꎬ将矿床的成矿过程大致分为火山喷流作用(1600~1800Ma)㊁变质变形作用(1000~1100Ma)和热液叠加改造作用(770~900Ma)3个阶段ꎮ初步认为拉拉铜矿田矿床成因类型属海相火山岩型铜矿床ꎬ但河口群不同的火山喷发旋回具有不同的矿化样式ꎮ
美洲驼
voltage是什么意思关键词:拉拉铜矿田ꎻ海相火山岩型铜矿床ꎻ矿床成因ꎻ流体包裹体ꎻ四川
中图分类号:P618.41㊀㊀文献标志码:A㊀㊀文章编号:1671-2552(2020)08-1233-14
激活码英文
ShenHM GongLM ChenH LinLJ DengYW ZengL.AdiscussiononthegeneticmodelofthecopperdepositinLalacopperorefied SichuanProvince.GeologicalBulletinofChina 2020 39 8 1233-1246
Abstract ThetectonicenvironmentoftheLalacopperorefieldislocatedintheSichuan-Yunnanpassive
continentalmarginriftsystemofHuiliCounty SichuanProvince anditsmineralizationiscontrolledbythetectonic-magmaticevolutionoftheHuili-Dongchuanrifttrough.TheorebodyislocatedintheNa-richspilite-keratophyreseriesofthePaleoproterozoicHekouGroup.Thevaluesoftheδ34Sofmetalsulfideintheorearedistributedintherangeof-1ɢ~4ɢ andareclosetozero whichhavecharacteristicsoftowerdistribution indicatingthatsulfurmainlycamefromvolcaniceruption.Thefluidtypeofthedepositissimilartothatofthevolcaniceffusivesedimentarydeposit theinclusionsarebasicallyⅠ-typeinclusionsinearlyquartzsulfideandⅡ-typeandⅢ-typeinclusionsinlatecalcitequartzsulfide I-typeinclusionsreflectthemainmetallogenicstageofvolcaniceruptive-sedimentaryperiod whileⅡ-typeandPartialⅢ-typeinclusionsreflectterminalflui
some like you 歌词
dmiscibility whichindicatesthatthedeposithasundergonelatereformation.Accordingtoisotopicdatingdata themetallogenicprocessofthedepositcanberoughlydividedintothreestages volcanicspouting 1600~1800Ma metamorphismanddeformation 1000~1100Ma andhydrothermalsuperpositionmodification 770~900Ma .ItispreliminarilyconsideredthatthegenetictypeofdepositsabouttheLalacopperorefieldbelongstomarinevolcanicrocktypecopperdeposit butdifferentvolcaniceruptioncyclesofEstuaryGrouphavedifferentmineralizationpatterns.
Keywords Lalacopperorefield volcanicmassivesulfidecopperdeposit oregenesis fluidinclusion SichuanProvince
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