简介：BasedontheseismicdatagatheredinpastyearsandthecorrelationbetweentheseaandlandareasoftheLowerYangtzePlatform,thestructuralcharacteristicsoftheSouthYellowSeaBasinsincetheIndosiniantectonicmovementisstudiedinthispaper.ThreestagesofstructuraldeformationcanbedistinguishedintheSouthYellowSeaBasinsincetheIndosinian.Thefirststage,LateIndosiniantoEarlyYanshanian,wasdominatedbyforelanddeformationincludingboththeupliftingandsubsidencestagesunderanintensivelycompressionalenvironment.Thesecondstage,whichiscalledtheHuangqiaoEventinthemiddleYanshanian,wasachangeforstressfieldsfromcompressiontoextension.Whileinthethirdstage(theSanduoEvent)intheLateHimalayan,thebasindevelopedadepressionintheNeogene-QuatemaryafterriftingintheLateCretaceous-Paleogene.Thelong-timeevolutioncontrolled3basinformationstagesfromaforelandbasin,thenafaultbasintoafinaldepressionbasin.Inconclusion,sincetheIndosinian,theSouthYellowSeaBasinhasexperiencedcompressionalfoldandthrust,collisionalorogen,compressionalandtensionalpulsation,strike-slip,extensionalfaultblockandinversionstructures,compressionandconvergence.TheNE,NEE,nearlyEWandNWtrendingstructuresdevelopedinthebasin.Fromwesttoeast,thestructuraltrendchangedfromNEEtonearEWtoNW.Whilefromnorthtosouth,theychangedfromNEEtonearEWwithastrong-weak-strongzoningsequence.Vertically,themarineandterrestrialfaciesbasinsshowa"seesaw"patternwithfoldandthrustintheearlystages,whichisstronginthenorthandweakinthesouthandanextensionalfaultinlaterstages,whichisstronginthenorthandweakinthesouth.Inthemarinefacies'basin,thrustdeformationismoreprevailingintheupperstructurallayerthanthatinthelowerlayer.ThetectonicmechanismintheSouthYellowSeaBasinismainlyaffectedbythecollisionbetweentheYangtzeandNorthChinaBlock,whilethestressenvironmentoflarge-scal

简介：Theeffectiveprecipitationandtheframeofatmosphericcirculationinthepastthreekeyperiods,i.e.30kaBP,18kaBPand6kaBP,havebeenanalyzedonthebasisofthepalaeolakestatusrecordproducedbytheChineseLakeStatusDataBase.Theresultsshowthatthewest-centralpartofChinawascharacterizedbyhighlake-levelsat30kaBP,resultingfromstrengthenedsouthwestmonsoons;whereasthehighlakestand,occurringinthewest-centralpartofChinaat18kaBP,wascausedbythesouthwardshiftandthestrengtheningofwesterliesalthoughthehigh-standdistributionwasreduced.Meanwhile,theeast-centralpartofChinawasunderthecontrolofstrongwintermonsoonsat18kaBP.Thehighlake-levels,whichoccurredintheeast-centralpartofChinaat6kaBP,arerelatedtotheenhancedEast-Asiansummermonsoons;whiletheloweringofthelake-levelinthewest-centralpartofChinaat6kaBPwasduetothenorthwardshiftandcorrespondingshrinkofthewesterlies.Acomparisonb

简介：TheearthquakeactivityanddamageinmainlandChinain2003arereviewed.Therewere27earthquakeswithamagnitudeofover5.0,resultingin319peoplekilledand7147peopleinjured.Thetotaleconomiclossofover560millionUSdollarsrepresentsthehighestfigureformainlandChinasince1977,anditiscomparabletothetotallossduringonedecadeinthe1980's.ForthefirsttimeChinaInternationalSearchandRescue(CISAR)teamsweredispatchedtodisasterareasinChina,Algeriaandlran.

简介：ContinentalChinahasmoveddextralEastwardsinceCenozoictime,drivenbythecollisionoftheIndianwiththeEurasianplate.Evidenceforthiscomesfromlandscapeevolution,thedistributionofearthquakeepicenters,Cenozoicsedimentaryandvolcanicrocks,andthemeasurementofGPSvelocityvectors,thedistribntionofcrustalstress,paleomagneticdata,anddeepmantlestructure,amongothers.Thismovementcommencedaround40Ma,coupledwiththickenedlithosphereandwidespreadstressreleasealongstrikeslipfaultsthatboundthecontinentalChineseblock.BecauseofcontinuedNorthwardsubductionoftheIndianplate,manifestationofthedextralmovementhasintensifiedsince25Ma.Far-reachingeffectsincludeextensivestrike-slipmovementontheTan-LufaultinEasternChina,formationoftheDabieultrahighpressuremetamorphicterrane,extensivethrustfaultsinEastChina,delaminationandthickeningofthelithosphereofSouthChina,apossibletectonicdoublingoftheMiddle-LowerYangtzeValleymetallogenicbelt,andtheformationoftheJapan,Huanghai(EastChina),andSouthChinaSea.

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