熊耳山东段黄沟金矿地球化学特征与成矿预测

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1、中南大学硕士学位论文ABSTRACTGeochemicalCharacteristicsandMetallogenicPredictionofHuanggouGoldDeposit，theEastemSectionoftheXiong’ershanRegionAbstract：TheareaofXion97ershanregionisoneoftheimportantgoldproductsareainHenanprovince，wheredistributesnumerouslargeandmedi

2、um—scalegolddeposits，suchasShanggong，Huanxiangwa，Qiyugou，Qinggangpingetc．Itisstillcontroversialofmineralizationepoch，ore-formingmaterialandsourceofore—formingfluid，andgenesisofgolddepositinthisregion．TheHuanggoudepositislocatedintheeastofXiong’ershanreg

3、ion，andis喇oinedtoQinggangpinggoldfield．Thesetwogolddepositsbelongtosametypewhichrelatedtoslowlyinclinedtectonicandalteredvolcanicrocks．BasedonthesufficientcollectingofpreviousdataandknowledgeofthegeologicalsettingofOre—formingprocesses，thisstudymainlyfo

4、cusedontheOre-formingmaterial，sourceofOre—formingfluidandmineralogeneticepochofgolddepositinXiong’ershanregionthroughthefieldgeologicalinvestigationandgeochemistrystudyofmineraldeposits．TheOre—formingmodeloftheHuangoudepositwasbuilt，simultaneous，themeta

5、llogenicpredictionoftheHuanggoudepositwasconductedthroughtheindicatorfordepositofgeology,physicalgeographyandgeochemistry．Basedonthefieldinverstigationandstudy,someconclusionsCallbedrawnasfollowing：1)Thegeochemistryincludingbulkanalysisofmajorelement,tr

6、acedementandREEofHuanggoudepositswerestudiedinthispaper．RestorationofthemetamorphicprotolithsuggestedthatmostoftheGneissprotolithisfromigneousrock，andvolcanicrocksfallintothehighkaliumcalcalkalineseries．Ingenerally,goldoreinthisregionisobviouslylackofso

7、diumandrichincalcium．ThecontentofSi02ofOreishigheraswell．ThegradeofAuvariedasthecontentofSi02increasingindirectproportion，whichshowsthatsilicideandpotassiumareintimatelyassociatedwiththegoldmineralizationinHuanggoudeposits．Inthisregion，therareeartheleme

8、ntsofOreischaracteristedbystronglackingofRb，SmandYwhichissimilarwithgneissandandesite，butisTVquitedifferentwithintrusiverocks．AllabovementionedsuggestedthatAumineralizationinthisregioniscloselyrelatedtoSilicificationandpotassium·