简介：1ImportantSignificanceofPrecambrianTectonicResearchTheauthordiscussedtheproblemof"pre-Siniantectonics"inthetextbook"Geotecton-ics"in1962(ChenGuoda,1962),Basedoninformationfrompreviousstudies,theauthorprobedintotheproblemsoftectonicelementsofthesialinthepre-geosynclinalstageandtheprimarytectonicformo

简介：Inthegeoscientificcommunityoftheworld,avarietyofproposalsareknownashypothesestoex-plainthedynamicsofthecarth.Theseincludeplatcteetonics,theundationhyPothesis(vanBemmelen,1933),themodernexpanding-earthhypothesis(Carey,S.W.,1976),theupheavalocean-floorhypothesis(Hoshino,M.,1975),theoceanizationhypothe

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简介：In1956theChinesegeoscientistChenGuoda(1956)proposed,forthefirsttime,theterm"activatedregion"tostandforanewtectonicregimeoccurringinanarealikemostofeasternChinaaftertheMesozoic.BasedonthegeologicalfeaturesoftwotypicalexamplesfromChina,theYinshanregionan

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简介：Thetectonicmovementathumanscalehasnotbeenfullyunderstoodyet,especiallyforactivetectonics,althoughitisthebasistostudynaturalhazardsandenvironmentalvariations.Manynationalandinternationalscientificplansrelatedcloselytoactivetectonicsresearchhavebeenmadeinthepasttenyears.Thispaperbrieflysummarizedthebackgroundoftheundertakingofactivetectonicsresearch,itsadvancesandexistingproblems,andthekeypointsinitsfuturestudiesarealsopointedout.TheemergingofnewtechnologiesliketheEarthObservingSystem,DigitalSeismologyandsoonprovidesunusualopportunitiesfortectonicresearch.Itisemphasized,however,thatcarefulanalysesandbuildingupofnewtheoreticalframearesillthekeyproblemsforstudiesofactivetectonics,especiallyforactivetectonicsinChina'scontinent.

简介：TheBrazilianshieldwasassembledfromafewArcheanandPaleoproterozoiccratonicnucleisurroundedbyPan-African-BrasilianomobilebeltsofNeoproterozoicage.Whilesomeofthesemobilebeltsdisplayatypicalfrontalcollisiontectonicstyle,othersaredominatedbytranscurrentregimes,clearlyindicatingobliquecollisionalsystems.Thispaperisanattempttodeterminethemeanorientationoftheprincipalhorizontalcompressivestressesforeachmobilebelt,consideringeitherthefrontalorobliqueconvergencecharacter.FromthesegeneralobservationsaschemewithWNW-ESEtoNWSEtrendsofthemaincompressivestressisproposed.Wesuggestthatthistrendrepresentsthemeandisplacementvectors,accordingtoacoherentkinematicpicturefortheamalgamationoftheWestGondwanaduringthefinalstagesofconvergenceoftheBrasilianobelts,whereWNW-ESEtoNW-SEarethemaindirectionsoffinalclosure.

简介：TectonicallytheDabieorogenicbeltconsistsmainlyoftheDabieshanYanshanianupliftedzoneandtheBeihuaiyangVariscan-Indosinianfoldingzone.InthenorthboundaryadjoiningtheNorthChinaBlock,thereareanEarlyPalaeozoicophioliticmixtitebeltandtheHefeiMesozoic-Cenozoicfaultedbasinwhichoverlapsonthesuturebelt.InthesouthofDabieorogen,thereisasecondarytectonicunitcalledForelandthrust-faultedstructuralzonewhichwasmainlyformedbytheintracontinentalsubductionsduringMesozoicera.ThestudyshowsthattheDabieBlockisapartofmid-lateProterozoicpalaeo-islandarcatthenorthmarginofYangtzeBlock.DuringCaledonianperiod,asasubmergedupliftatthenorthencontinentalmarginofYangtzeBlock,theDabieBlockcollidedwiththeearlyPalaeozoicpalaeo-islandarcatthesouthmarginofNorthChinaBlock,resultingintheconvergenceoftheNorthandSouthChinaBlocksandthedisappearanceofoceaniccrust.Sincethen,large-scaleintracontinentalsubductionswerefollowed.DabieOrogenicBeltistheproductofoverlappingofYangtzeBlock,DabieBlockandNorthChinaBlockunderthemechanismofintracontinentalsubduction.IndosinianperiodistheperiodofchiefdeformationandhighpressuredynamicmetamorphismforDabieBlock,andYanshanperiodisthemainorogenicperiodinwhichtheremeltingofcrustcausedbybasementshearingresultedinlargescalethermometamorphism.ThepresenttectonicframeworkoftheorogenwasfinallyformedbytherapidupliftingoftheDabieshanmountainsandglidingsouthwards,whichresultinthedevelopingofthrustbeltonsouthsideandtheextensionaltectonicmovementonnorthside.

简介：<正>EASTERNASIA-WESTERNPACIFICCRUSTOBODYANDTECTONICSWeiZhoulin,ChenGuanghao-FanWeiming,LinGe,SunShaohua,PenWenlan,LiZhi’anandQinQingxiang(ChangshaInstituteofGeotectonics,AcademiaSinica,Changsha,410013,China)Crustobody,evolution-movement,EasternAsia-WesternPacificThere’re4typesofcrustobodiesandtotal6.Eachhasitsownwayofevolu-tionandmovement.Theircombinationandseparationdepictacomplexhistoryofgeotectonics.

简介：基于ArcGIS和MapInfo软件，我们数字化中国的活跃tectonics地图(1:4,000,000)，它被院士邓启东编并且修订，并且造了中国的活跃tectonics的空间数据库。数据库集成富有的活跃构造数据，例如有超过6.0的大小的地震的一个目录，活跃差错，第四级的盆，活跃褶层和他们的联系属性参数，和工具科学、有效的管理到这个数据。同时，空间数据库一起加入空间地图数据和联系属性数据，它实现在空间性质和属性参数之间的数据询问并且也使与不同数据层执行空间分析可能。这些为地震学习提供许多便利并且允许设计构造机构在实际应用程序使用这个数据。

简介：基于重定位与双差别(DD)在江西省发生在2005年11月26日的Jiujiang-Ruichang地震顺序算法和主人事件技术，纸讨论主要吃惊(Ms5.7)和可能的seismo构造的焦点的机制。精确重定位结果显示平均水平错误在一个NS方向是在一个EW方向和0.40km的0.31km，并且平均深度错误是0.48km。焦点的深度从8kin变化到14km，与在10km12km的占优势的分发。主要吃惊的震中被重定位是29.69

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简介：Thefieldsofstructuralgeologyandtectonicshavewitnessedgreatprogressoverthelastdecadeandarepoisedforfurtherexpansioninthefuture.Oneofthesignificantbreakthroughsistheestablishmentofthe'BeyondPlateTectonicsTheory'whereacombinationofconceptualmodelsandnumericalmodelingonplumetectonicsandplatetectonicshasenablednewinsightsintothestructuralandtectonicarchitectureandprocessesinthedeepinterioranddeepsea.Thispapersynthesizesdevelopmentsofstructuralgeologyandtectonicsfromamacroscopicperspectiveindeepinterioranddeepsea.Fourkeytechniquesarealsoreviewed:satellitealtimetryforsurfacestructuresindeep-seamulti-beamsea-floormapping;tomographyfortectonicsofthedeepinterior;diversemodelingapproachesandsoftwareforunfoldingdynamicevolution;andtechniquesforHT/HPexperimentsonmaterialrheologyandinsitucomponentmeasurements.

简介：Thispaperproposesanewtectonicpatternofthedeep-seatedstructuresinChinaanditsadjacentareas(includingtheT-A-BsystemoftheRyukyuIslands).Thisisbasedonstudiesofthegravityfieldandgravityinversioncoupledwiththesummationofthemostrecentachievementsingeophysicalstudies.Fromaplate-tectonicpointofview,themetallogeniccharacteristicsandtheirindicationsatdepth,aswellasrelevantgeophysical-geologicalcharacteristicsoffourtectonicenvironmentsoftheChinesecontinentareanalysed,andaclassificationofcompositemetallogenicprovincesandbeltsandpredictionofmetallogenicprospectsaremade.TheauthorextendstheKunlun-Qilian-QinlingtectonicbelttotheT-A-BsystemoftheRyukyuIslandsthroughtheNWdeepboundaryoftheHangzhouBay,andalsoproposesthefollowingbasicviews’themigrationandsuperpositionoftectonicenvironmentsledtotheformationofacompositemetallogenicsystem;thechangeinthetectonicenvironmentresulted

简介：ShortwavegravityanomalyiscorrelatedtoseafloortopographyinthegravityfieldofTaiwananditsadjacentseas.Gravityvaluesof200×10-5ms-2atYushangand-160×10-5ms-2atLiuqiuseatrencharerespectivelythemaximumandminimumgravityvaluesinthisarea.BouguergravityanomalyreflectsnotonlyMohointerfaceundulation,butalsofaultdistribution.TheinflexionofgradientbeltofBouguergravityanomalyisaspotliabletoearthquakes.Middlelongwavegeoidisthebestdatatoinvertcrustalthickness.Wecalculatecrustalthicknessbyusinggeoiddata,andthemaximumvalueis38km;theminimumvalueis12kminTaiwananditsadjacentseas.

简介：Inthecontextofthe32^ndInternationalGeologicalCongress,theUniversityofUrbinowhichisabouttocelebrateits500^thanniversaryhostedthepost-CongressWorkshopPWO-09from29^thto31^stAugust2004dedicatedto“NewConceptsinGlobalTectonics：EmphasisonSomeFundamentalQuestionsinGeology”,convenedandorganizedbyForeseCarloWezel.

简介：Kang-DianregionislocatedonthesouthernpartofthefamousNorth-Southactivetectonicbelts,whichisapartofChina-Mongoliacentralaxesstrongearthquakebeltandthehugecrustalthicknessundulationbelt.Manygeolo-gistsareinterestedinitduetoitsseismicityandabundantmineralresource.Weinvertedmeancrustaldensityanddensityanomaliesonthedifferentlayerinthedepthrangeof10~100km,usingthegravityfieldthatistreatedbyseparationandadjustment.Combiningothergeophysicaldatatoanalyzethedensitydata,theresultsshowthatthereisdifferencebothintectonicfeatureandgeophysicalfeaturebetweenKang-Dianlozengeblockanditswest-ernandeasternparts.

简介：TheformationandoccurrenccofTaolinglead-zinedepositsarecontrolledbyTaolingdismantlingfaultbeltlocatedonthcnorthwcstfiankofDagunshanmctamorphiccorcassemblagebody.ThebeltconsistsofseveralenechelondismantlingfaultswhichstrikeNEE-SWW,dipNNEonthewhole.Thedippingangclsofthefaultsvarygradua11yfromabout5ooin

简介：Since1993,thefirstauthorhasexpandedhisresearchongeotectonicsfromChinatothegloble,andhasputforwardhisownnewconceptsinglobaltectonics:TheoryofIntegratedPolygeneticGeotectonics.In2001,heandhiscoworkerspublishedtheirworks:twomapsandadetailedexplanatorynotebyGeologicalPublishingHouseofChina.