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南黄海北部盆地中、新生代构造热演化史模拟研究.docx

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南黄海北部盆地中、新生代构造热演化史模拟研究 Title:SimulationStudyontheTectonic-ThermalEvolutionHistoryoftheSouthYellowSeaBasin Abstract: TheSouthYellowSeaBasinislocatedinthenorthernpartoftheYellowSeaandisanimportantsedimentarybasininEastAsia.Understandingitstectonicandthermalhistoryiscrucialfortheexplorationandexploitationofitshydrocarbonresources.Inthisstudy,weconductedasimulation-basedinvestigationtoexplorethetectonicandthermalevolutionhistoryoftheSouthYellowSeaBasinduringtheCenozoic. Introduction: TheSouthYellowSeaBasinisapolyhistorysedimentarybasincharacterizedbycomplextectonicactivities.Itisinfluencedbymultipleforces,includingthesubductionofthePacificPlate,continentalcollision,andgravitationalcollapse.Theseprocesseshavegreatlyinfluencedthebasin'stectonicandthermalevolution.Inthisstudy,weusednumericalsimulationmethodstoreconstructthebasin'shistory. Methods: Oursimulationstudyinvolvedintegratinggeologicalandgeophysicaldatawithnumericalmodelingtechniques.Firstly,wecompiledandanalyzedvariousgeologicalandgeophysicaldata,includingseismicprofiles,welldata,andsedimentaryfaciesdistribution.Secondly,wedevelopeda3DstructuralmodeloftheSouthYellowSeaBasinandconstructedageologicalhistoryframeworkbasedontheavailabledata.Finally,weconductednumericalsimulationsusingthermal-mechanicalcouplingmodelstosimulatethebasin'sthermalevolution. Results: Basedonoursimulations,wereconstructedthetectonicandthermalevolutionhistoryoftheSouthYellowSeaBasinduringtheCenozoic.Ourresultsshowthatthebasinexperiencedmultiplestagesoftectonicevolution,includingrifting,compressionaldeformation,andfaultreactivation.TheseprocessesweredrivenbythesubductionofthePacificPlateandcollisionwiththeEurasianPlate.ThebasinexperiencedintensetectonicactivitiesduringtheEocene,whichledtotheformationofmultiplefaultsystemsandthedepositionofthicksedimentarylayers. Regardingthermalevolution,oursimulationsrevealedthattheSouthYellowSeaBasinexperiencedacomplexthermalhistoryduetoitstectonicactivities.Thebasinunderwentmultiplestagesofheatingandcoolin