On the Devonian-Carboniferous Boundary in Neritic Facies Areas of South China:A Viewpoint of Integrated StratigraPhy-中国期刊网

摘要 BiostratigraphicaldataindicatethatintheneriticfaciesareasofSouthChina,theDevonian-Carboniferousboundary(DCB),matchingtheboundarybetweenconodontSiphonodellapraesulcatazoneandS.sulcatazone,shouldbedrawnbetweenrugosecoralCystophrentiszoneandPseudouralinazone,i.e.theCystophrentis\Pseudouralinainterval-zone.ThetopofthesealevelfalleventbedneartheDCBislowerthantheboundarybetweenS.praesulcataandS.sulcatazones,buthigherthanthetopoftheCystophrentiszone.SequencestratigraphicalstudyshowsthatthesealevelfalleventbedneartheDCBconstitutestheshelfmarginsystemtract(SMST)ofadepositionalsequence(SQ1)inbothneriticandpelagicfaciesareas.ThetopsurfacesofSMSTofSQ1isslightlylowerthanthebaseofS.sulcatazoneinthepelagicfaciesareas,InneriticfaciesareasofSouthChina,therefore,theDevonian-CarboniferousboundaryismarkedbythemostdistincttransgressivesurfacewithintheCystophrentis\Pseudoura

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On the Devonian-Carboniferous Boundary in Neritic Facies Areas of South China:A Viewpoint of Integrated StratigraPhy

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On the Devonian-Carboniferous Boundary in Neritic Facies Areas of South China:A Viewpoint of Integrated StratigraPhy

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