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1、GeologicalandgeochemicalcharacteristicsofDongangolddeposit,Heilongjiang（黑龙江东安金矿地质及地球化学特征）No.Volume404GeologyandexplorationVol.40No.42004JulyGEOLOGYANDPROSPECTINGJuly,2004geologyDepositGeologicalandgeochemicalcharacteristicsofDongangolddeposit,HeilongjiangJiHaiGuoWangChangshe
2、ngShiYaojun(HeilongjiangNonferrousMetalsGeologicalSurveyseven0,seventeamsSuihua152054)[AbstractDongangoldmineisalargeepithermalgolddepositdiscoveredinHeilongjiangprovince.TheoredepositoccursinLowerCretaceousvolcanicrocksIntheenvironmentofice,petrochemical,petrochemical,andsu
3、bvolcanicrocksItiscontrolledbysecondaryfaultsofthefault.ThesurroundingrockisstronglysilicifiedandsericiteDevelopmentAndCl-andsoon,thegascompositionismainlyH2OandCO2,accordingtothecurrentlow-temperaturehydrothermalgold-Thedepositshouldbeoflowsulfidationtype.Basedonthestudyofg
4、eologicalandgeochemicalcharacteristicsofDongangoldmine,thispaperdealswiththedeterminationoforegenesisandmineralizationForecasthascertainreferencesignificance.FluidinclusionstudiesindicatethatThemainmetallogenicprocessesoccurBetween144and348degreescentigradeThemetallogenicdep
5、this012~110kmmineralizationfluidTheliquidphaseismainlycomposedofK+Classificationprincipleofsilverdeposits,[keywordGeochemistry,Dongangoldmine,Heilongjiang[CLCnumber]P618151[P632][documentidentifiercode]]A[articlenumber]0495-5331(2004)04-0037-05Dongangolddepositislocatedinthe
6、southeasternXunkeCountyofHeilongjiangProvince139degreedirection45km.TheminebelongstoYichunCaledoniangeosynclinefoldduringthelifeextensionNorthernsegmentThedepositsoccurinmoderatelyacidicvolcanicrocksSubvolcanicrockenvironmentinGoldreserveshavebeenproved24t(No.5orebody))there
7、isalargeamountofprospectiveresourcesto50t.ItisassociatedwithmanylargeandsuperlargescaleofCircumPacificmetallogenicbeltEpithermalgolddepositsSuchastheCanadiansummerTerogoldmineandtheAmericanWestDepartmentofMaclauringold,China,Russia,FujianZijingold.Thegeologicalfeaturesandgeo
8、chemistryofShangolddepositandJilinhedgehoggolddeposit,etc.Featureshavecerta
