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ID:37662542
大小:1.68 MB
页数:14页
时间:2019-05-28
《浙西北淳安银山地区银铅锌矿床矿石结构构造_矿石成分及成矿机制_胡逸洲》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、1000-0569/2013/029(10)-3623-36ActaPetrologicaSinica岩石学报浙西北淳安银山地区银铅锌矿床矿石结构构造、*矿石成分及成矿机制11**22111,32胡逸洲厉子龙毛建仁余明刚励音骐汪惠惠蔡雄祥骆学全11**22111,32HUYiZhou,LIZiLong,MAOJianRen,YUMingGang,LIYinQi,WANGHuiHui,CAIXiongXiangandLUOXueQuan1.浙江大学地球科学系,杭州3100272.中国地质调查局南京地调中心,南京2100163.浙江省第一地质大队,杭州3100001.Departm
2、entofEarthSciences,ZhejiangUniversity,Hangzhou310027,China2.NanjingInstitutesofGeologyandMineralResources,CGS,Nanjing210016,China3.No.1GeologicalPartyofZhejiangProvince,Hangzhou310000,China2012-06-12收稿,2012-08-30改回.HuYZ,LiZL,MaoJR,YuMG,LiYQ,WangHH,CaiXXandLuoXQ.2013.Oretextureandstructureand
3、compositionsofYinshanpolymetallicoredepositinChun’anCountyfromthenorthwesternZhejiangProvinceofthesoutheasternChinaanditsimplicationformineralizedmechanism.ActaPetrologicaSinica,29(10):3623-3636AbstractThenorthwesternZhejiangProvince,locatedinthesouthernpartoftheYangtzeblock,belongstoapartof
4、theQinzhou-HangzhoumetallogeneticbelttogetherwiththenortheasternJiangxiProvince.Mineraloccurrenceandmetalandnon-metalmineralcompositionsfromthesamplesintheYinshanoredistrictintheChun’anCountyofthenorthwesternZhejiangProvinceareanalyzedusingtheSEMandEPMAtechniques,andthenenrichmentmechanismof
5、metalelements(e.g.,silver,leadandzinc)andmineralizationarediscussedinthisstudy.Thepolymetallicoredepositofsilver,lead,zincandcopperintheYinshanarea,layeredandlayered-likedistributed,mainlyoccursinthefracturezonebetweentheupperLantianandPiyuancunformations,andtheinterfaceofthelithologyboundar
6、ypartlyaswellasthatbetweenthedolomitizedlimestoneinthebottomoftheLantianFormationandconglomeraticmudstoneintheNantuoFormation.Twogroupsofmetallicmineralassemblagesaresubdivided.Oneispyrite-chalcopyrite-galena-sphaleriteassemblage,locatedbetweentheLantianFormationandPiyuancunFormation,indicat
7、ingahydrothermalmineralgroupformedunderamediumtolow-temperaturecondition.Theotherispyrrhotite-arsenopyrite-sphaleriteassemblage,locatedbetweenthebottomofLantianandtheNantuoformations,recognizedasahydrothermalmineralgroupformedunderthemedium-tempera
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