利用重、磁异常研究东海陆架盆地的断裂构造

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1、AbstractEastChinaSeaisalargemarginalseaineasternChina，hadcomplexcontinentalshelfbasin，specialsedimentarycompositionandtheWestPacificcontinentalmargintypicaltrench-arC-basinstructuralsystem．EastChinaSeaalsohadlotsofproblemsaboutthegeologyandenvironmentalresources．Meanwhile，Itisafocusofattentionthatth

2、emineralresourcesoftheEastChinaSeashelfbasin．Sincethe1990s，thesurveyintheEastChinaSeabecamedeeperanddeepeLthenewresearchresultsconstantlyemerged，foundawealthofnewgeologicalphenomenasandaccumulatedawealthofgeologicaldatas．Therefore，itisnecessarytostudygeologyoftheEastChinaSeaagainbaseonthenewbasicdat

3、asandscientificproblemswiththeresultthatachievingthenewbreakthrough．WehavecompletedthestudyincludingdistributionandparameteronthefaultstructureinEastChinaSeaShelfBasinbaseongravityandmagneticanomalyprocessingwithsometechnology,analyzedthepreviousstudiesandcombinedwiththelocalgeology．Themajorworkandc

4、onclusionsofpresentpaperareasfollows：Firstly,ThefundamentalmapsabouttheEastChinaSeaShelfBasinhavebeenrequiredbyprocessingthegravityanomalyfromsatellitealtimetryandtheaeromagneticanomaly．ThesemapshavebeenusedresearchtheareaoftheEastChinaSeaShelfBasinagain．Secondly,Thedistributionandmutualrelationoffr

5、actureshavealsobeenrequiredbycomputingfirstverticalderivativeandNVDR--THDRwithsatellitealtimetrygravityanomalydatathebougueranomalydataandmagneticanomalydata，Thedepthoffractureshavealsobeenrequiredbyinversionbasedongravityanomalydataandmagneticanomalydata．Itishelptounderstandthefaultstructure．Thirdl

6、y,thefaultsystemwasdividedintothreelevelsincludingseven1st-orderfractures，thirteen2st．orderfracturesandmany3st-orderfractures．Both1st-orderand2st-orderfracturesaredescribedindetailaboutthedistributionandrelationship．Accordingtotheresearch，WeconsideredthatthedirectionsincludeNNE，NE，NWWandNW-trendingf

7、racturesandthefeaturesofstructuralpaRemintheEastChinaSeashelfbasiniS“NorthBlockandSouthBlock，EastZonationandWestZonation”．Finally,accordingtotheanalysisandconversion，WeconsideredthatNW-trendingfaultsb