ORIGINALARTICLEGeochronologicalandgeochemicalconstraintsonthegraniticgneissintheHuozhouComplex:implicationsforthetectonicevolutionoftheTrans-NorthChinaOrogenChongPeng1,2,4,5,6•HaiyanLiu1•RuiyingZhang3•CremildaSamuelJofrisse4•LinfuXue5•BaozhiPan4Received:22June2022/Revised:13September2022/Accepted:16September2022/Publishedonline:5November2022©TheAuthor(s),underexclusivelicencetoSciencePressandInstituteofGeochemistry,CASandSpringer-VerlagGmbHGermany,partofSpringerNature2022AbstractTheTrans-NorthChinaOrogenisamajorNeoarcheanPaleoproterozoiccollisionalorogenicbeltabovetheNorthChinaCraton,formedduetoprolongedandcomplexprocesses.EventhoughmanyNeoarchean-Paleoproterozoicmagmaticandmetamorphicactivitieshavebeenreported,duetotheHuozhouComplex’ssmalloutcroppingrange,littleattentionhasbeenpaidtotheoriginofvariousigneousrocksoftheHuozhouComplexinthecenteroftheTrans-NorthChinaOrogen.TheHuozhouComplex,locatedsouthoftheLuÈliang,Wutai,andHeng-shancomplexes,isanimportantwindowintotheEarlyPrecambrianstructureandevolutionoftheNorthChinaCraton.ItsmagmaandmetamorphismarecrucialtounderstandingthedevelopmentofthestructuralevolutionoftheTrans-NorthChinaOrogen.TheHuozhoumeta-morphiccomplexareaexposesarangeofPrecambrianmetamorphicrocks,amongwhichthemostextensivelydispersedisfelsicbiotiteplagioclasegneiss.Inthisstudycomprehensivegeologicalfieldsurvey,micropetrology,chronology,geochemistry,andHfisotopeanalysiswerecarriedoutfortheQinggangpingandAnzipinggneissinthenorthoftheHuozhouComplex.TheresultsshowthatthemagmaticzirconageoftheQinggangpinggneissis2196±14Ma,anditsprotolithisI-typegranite,formedbypartialmeltingofigneousrocksintheabsenceofweathering.Itssourceismainlythejuvenilecrustfromdepletedmantledating2431–2719Ma,withasmallamountofmantle-derivedmaterial.TheAnzipinggneisshasametamorphiczirconageof1931±13MawithanS-typegraniteprotolithbelongingtoperaluminousgranite.TheAnzipinggneissisformedbyrecyclingpre-existingcrustalcomponentsat2613–2848Ma.Aminorquantityofmantle-derivedmagmai...
