黑龙江省多宝山斑岩型铜_钼_矿床成矿流体特征及演化.pdf

1000-0569/2010/026(05)-1450-64ActaPetrologicaSinica岩石学报

黑龙江省多宝山斑岩型铜(钼)矿床成矿流体
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特征及演化

刘军1，2武广1，3＊＊钟伟1朱明田1，2
LIUJun1，2，WUGuang1，3＊＊，ZHONGWei1andZHUMingTian1，2

1.中国科学院广州地球化学研究所成矿动力学重点实验室，广州510640
2.中国科学院研究生院，北京100049
3.中国地质科学院矿产资源研究所，北京100037
1.KeyLaboratoryofMetallogenicDynamics，GuangzhouInstituteofGeochemistry，ChineseAcademyofSciences，Guangzhou510640，China
2.GraduateSchoolofChineseAcademyofSciences，Beijing100049，China
3.InstituteofMineralResources，ChineseAcademyofGeologicalSciences，Beijing100037，China
2010-02-06收稿，2010-04-01改回.

LiuJ，WuG，ZhongWandZhuMT.2010.FluidinclusionstudyoftheDuobaoshanporphyryCu(Mo)deposit，
HeilongjiangProvince，China.ActaPetrologicaSinica，26(5):1450－1464

AbstractThelarge-sizedDuobaoshanporphyryCu(Mo)deposit，locatedinthenorthwesternpartofLesserHingganRange，isthe
biggestporphyryCu(Mo)depositinthenortheastsectionofCentralAsian-Mongolian-Hingganorogenicbelt.Itsorebodiesaremainly
hostedinCaledoniangranodioriteandMiddleOrdovicianDuobaoshanFormationandesiteandtuff.Coppermineralizationisclosely
associatedwithsilicificationandsericitization，andmolybdenummineralizationoccursmainlyinsilicification-potassicfeldspathization
zone.Sixmaintypesofveinshavebeenidentified，namelyquartz-potassicfeldsparvein，earlystagequartz-molybdenitevein，late
stagequartz-molybdenitevein，quartz-chalcopyrite-pyritevein，quartz-pyriteveinandcalcite-quartzvein.Fourtypesoffluidinclusions

aredistinguishedfromvariousquartzveins，i.e.aqueoustwo-phase(W-type)，purevapor-phase(G-type)，CO2-bearingthree-phase
(C-type)anddaughtermineral-bearingmultiphase(S-type)inclusions.Fluidinclusionsofthequartz-potassicfeldsparveinaremainly
aqueoustwo-phaseinclusions，theirhomogenizationtemperaturesandsalinitiesvary＞550℃andfrom16.2%to18.1%NaCl
equivalent，respectively.Fluidinclusionsoftheearlystagequartz-molybdeniteveinaremainlycomposedofaqueoustwo-phaseand

daughtermineral-bearingmultiphaseinclusionswithminorCO2-bearingthree-phaseinclusions，theirhomogenizationtemperaturesand
salinitiesvaryfrom350℃to450