简介：<正>1.MaterialcompositionofthegeosynclinaltectonicLayerThegeosynclinaltectoniclayerismainlycomposedofthefollowingtwoparts:sandyslaterocksofPrecambrinandvolcanicrocksinbededwithinthesand-slaterocks.Thesandy-slaterocksembracethechemicalcompositionalcharacteristicsoflightmetamorphicrocks:SiO2=54.5681.63（Wt%）,withaverageof63.96（wt%）（n=58,thesameasfollowing）;Al2O3=9.4717.75（wt%）,withaverageof15.36（wt%）,andAl2O3>K2O+Na2O+CaO;thecontentof（FeO+Fe2O3）variesgreatlywithFeO>Fe2O3;（CaO+MgO）=0.789.22（wt%）withaverageof23（wt%）,andMgO>CaO;theratiosofK2O/Na2Orangfrom2to4（>1）.Bycomparingallthischemicaldatawiththatoftheotherkindrocks,Wecanknowthatthesandy-slaterocksweretheeunicand/orbathyalsedimentswhichformedunderthestronglyactiveeugeosynclinaltectonicsetting.

简介：Tectonicoreformationisthercsultoftcctonicmovementincombinationwithore-formingmaterjalmovementintheprecessofcru8talevolutlonandtectonicdevelopmcnt.Oreformationjsconditionedbythelawgovcrningmobile-8tabletransformationincrustalcvolutionshowsanorderinmetallogenicevo-lution,regionaidistributionofgolddepo

简介：ThecontinentofChinaisgroupedintoPan-Cathaysianblocks,LaurasiaandGondwanaContinentalmarginsandrelicsofthreeoceans-Paleoasian,Tethys,andPacificasawhole.Indetail,thecontinentofChinagrewupbycoalescenceofthreeblocksorplatforms(NorthChina,TarimandYangtze)andeightorogenicbelts(Altay-InnerMongolia-Daxinganling,Tianshan-Junggar-Beishan,Qinling-Qilian-Kunlun,Qiangtang-Sanjiang,Gangdise,Himalaya,Cathaysia,EasternTaiwan)duringtheprocessesofoceaniccrustdisappearanceandacceretionary-collisionofcontinentalcrusts.Intheorogenicbelts,sixconvergentcrustalconsumptionzones(Ertix-XarMoron,SouthTianshan,Kuanping-Foziling,Bangongco-Shuanghu-Nujiang-Changning-Menglian,Yarlung-Tsangpo,Jiangshao-Chenzhou-Qinfang)havebeendistinguished.Correspondingly,thestrataofthecontinentofChinaaresubdividedinto17tectonicstratasuperregions,whichtectonicallybelongtothreeblocksorplatforms,sixconvergentcrustalconsumptionzonesandeightorogenicseries,respectively.Thisdivisionisbasedmainlyondifferencesoftectonicenvironmentandtectonicevolutionamongblocks,zonesandbelts,includingthetimingofwhentheoceaniccruststransferredintocontinentalcrusts,thepaleobiogeographicfeatures,andthetypesofstrata.

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简介：About26sedimentarybasinsbearingoilandgasaredevelopedinChina.Theycanbeclassifiedintotwomaintypes,extensionalbasinsandforelandbasins.Theformerarechieflydistributedintheeasternpartandthelatterinthecentralandnorthwesternpartsofthecountry.Thepresentpaperdiscussesthestructuralcharacteristicsofthesebasins,includingsubsidencehistory,thermalhistoryandstructuralstyleandkinematics.Combinedwithtectonicsettinganalysisofgeophysicaldataanderuptiverocks,thegeodynamicsettingofthebasinsisestablished,andtheformationmechanismofthebasinsisdeducedtohavebeenrelatedtothesubductionoftheIzanagiandwestPacificplatesandtheclosingoftheTethysocean.

简介：TheearlyMesozoicgranodiorites(ca.165Ma)inthenortheasternHunanProvince(NEH)haveSiO2=65.4-69.65%,K2O/Na2O=0.95-1.38andK2O+Na2O＞6%,A/CNK=0.96-1.13andbelongtometaluminoushigh-Kcalc-alkalineseries.TheyarecharacterizedbyLREEandLILEsenrichment,andHFSEdepletionwithslightlynegativeEuanomalies(Eu/Eu*=0.62-0.90).Theinitial87Sr/86Srratiosareinrangefrom0.711458to0.717461,andεNdvaluesvaryfrom-9.4to-12.3,distinctfromthoseofthecontemporaneousgranodioritesmantle-derivedfromtheSoutheasternHunanProvince(SEH)(87Sr/86Sr(i)=0.707962～0.710396,εNd(t)=-6.98～-2.30).Bycontrast,suchsignaturesareroughlysimilartothoseoftheneighboringotherMesozoicgraniticplutons(Eu/Eu*=0.30-0.70;87Sr/86Sr＞0.710;εNd=-12to-16)inSouthChinaBlock(SCB),whichhavebeeninterpretedastheremeltingproductsofPrecambrianbasement.TheProterozoiclower-middlecrustisanimportantcontributortothepetrogenesisoftheseearlyMesozoicgranodioritesintheNEH.AnintracontinentalextensionsettingispresentinthenortheasternHunanProvinceatthattimeduetothedemandofenoughthermaltransfer.

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简介：在这份报纸，用在云南和它的邻近的区域的中等强壮的地震的焦点的机制解决方案，并且基于焦点的机制解决方案的参数的统计分析，我们详细在云南区域讨论了地震差错类型和现代构造压力领域的特征。结果证明很中等强壮的地震发生在云南区域具有罢工--滑动类型，等于80%总数。指责的正常和有有罢工滑倒地震的罢工滑倒和颠倒和颠倒的正常在比例是几乎相等的，大约8%各个。云南区域的构造压力领域是在水平附近的，并且地震差错飞机的剧降大。有三主要动态来源，对一个人是的云南区域起作用从Myanmar，老挝和越南的NE，NNE和指导NNW的代理力量；第二是SE-SSE从四川和四川云南菱形块的指导力量并且第三是NW-NNW从华南块的指导力量。这三代理力量控制了主要差错的指责的行为和云南和它的邻近的区域的强烈地震活动的特征。

简介：Planarstructures(foliationsandfractures)aroundtheTombelgraben(southwesternendoftheCentralAfricanShearzonesystem)havebeeninvestigatedandanalyzedwiththeaimofunravelingthetectonicevolutionofthebasement.Thefoliationsshowtwomajortrends,anolderN-S-trendinggneissoselayeringofuncertainagereworkedbyalaterPan-African(600+50Ma)NE-SWductiletrendthatiscontemporaneouswithsinistralshearingandmylonitization.ThebrittlephasecharacterizedbyNW-SE-trendingopenandpartiallyfilledfracturesisyoungerthanthemylonitizationeventandalthoughithasnotbeendated,itissuggestedthattheoriginofthesefracturesislinkedtotheonsetofvolcanismalongtheCameroonvolcanicline-31m.y.ago.ThemyloniticfoliationisrecognizedforthefirsttimeandsupportsatectonicevolutionmodelfortheTombelgrabeninwhichductilenon-coaxialdeformationwassucceededbybrittlefailure.

简介：现在的花岗石地形特征和分发是气候，tectonics和岩性学的综合结果。在中国的花岗石地形的各种各样的类型意味着气候zonality和土的微分垂直运动出现，当时publis

简介：TheChinesemainlandisdividedintosometectonicblocksbynearlyNE-andEW-orientatedfaults.MeanwhilestrongearthquakesintheChinesemainlandusuallyclusterintimeandspace.Wecall2earthquakesingroups2.TectonicblocksseparatedbyfaultsandearthquakesingroupsareprominentfeaturesofthetectonicsoftheChi-nesemainland.Correlationbetweenmovementoftectonicblocksandgroupsofearthquakesisdiscussedinthispaper.Theresultsshowthatearthquakesingroupsoftenoccurredatoneorseveralblockboundaryfaults.Thereleasedelasticstrainenergyisbuiltupinthesameperiodsandaroundblocks.Itmeansthatstrongearthquakesingroupsaremainlycausedbymovementofblocks.Fourtypesofblockmovementareidentifiedbasedongroupearthquakes:movementalongasingleboundaryofablock(oracombinedblocks),movementofasingleblock,movementofmulti-blocks,andmovementinblockinteriors.IfweconsiderdistributionofallstrongearthquakesoccurredintheChinesemainland,themovementalongasingleboundaryofablockismorepopularoneinducingstrongearthquakes.Butifweonlyconsiderearthquakesingroupsratherthansingleearthquakesthemovementofablockdominatesamongfourmodes.StatisticswithrespecttogroupearthquakesshowthattheTaihangshanmountainandtheNorthChinablockaremuchactiveintheeasternpartofChinesemainland,andinwesternpartofChinesemainlandtheactiveblocksareSichuan-YunnanandtheKunlun-Songpanones.

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简介：ThenorthernmarginoftheAlxablockisthejunctionofatectonicunits.Fourfirst-ordertectonicunitsaredistinguished:1.theYaganstructuralzonecharacteristicofanimmatureislandarc;2.theZhusileng-Hangwulastructuralzone,whichwasapassivecontinentalmarginintheEarlyPalaeozoicandwastransformedintoanactivecontinentalmarginintheLatePalaeozoic;3.theShalazhastructuralzonecharacteristicofamatureislandarc;4.theNuru-Langshanstructuralzone,whichwasaProterozoicorogenicbeltandlaterevolvedintoanextensionaltranstionalcrustinthePalaeozoic.Theabove-mentionedtectonicunitsdifferremarkablyinsedimentaryformations,magmaticrockassociations,metamorphismandgeochemistryandareboundedbyfaultsbetweenoneanother.

简介：ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｐａｌｅｏｃｏｎｔｉｎｅｎｔａｌｍａｒｇｉｎｓ，ｃｈａｒａｃｔｅｒｉｚｅｄｂｙａｃｔｉｖｅｉｎ－ｔｅｒａｃｔｉｏｎｂｅｔｗｅｅｎｅａｒｔｈｃｒｕｓｔａｎｄｍａｎｔｌｅ，ｃｏｍｐｌｉｃａｔｅｄｔｅｃｔｏｎ－ｉｃｍｏｖｅｍｅ...

简介：Themultiple-beddedcharacteristicsofthecrustandmultiple-stagenature(geosyncline-platform-diwa)ofthetectoicevolutionarctectonicprcrequisitcsfortheformationandevolutionofthegranitoidsandthcirtungstenmineralizationinJiangxi.ControlledbythemultiPlc-stagetectonicevolution,allthegranitoidsofdiffcrcntgeo1og

简介：Wanan盆的延期和沉淀上的量的研究被执行基于可得到地震并且和地区性的地质的数据的地上凿穿数据。用平衡剖面图和backstripping技术，我们重建了stratigraphic免职和盆的构造进化历史。形成从的盆始新世并且除了晚中新世的本地人通常处于一个extensional/transtensional国家compressoin。在渐新世并且早的主要的盆延期ocurred中新世(在∼16.3妈前)并且处于更小的率的此后一致的段。北、中间的盆在38.6-23.3妈期间更早强烈地延长了，当南部的盆主要在23.3-16.3妈期间被拉长时。盆形成和发展与轮流出现有关对沿着Wanan差错地区的右罢工滑倒运动左首。主导的动力学可以被华南海传播的seafloor引起并且它的外部板相互作用。盆构造进化被划分成五个阶段：起始的rifting，主要rifting，裂缝飘移转变，结构的倒置，和热沉淀。

简介：Thepaperpresentsanoverviewoftherelationshipsbetweentheinteriorstructuresoftectonicterranesandthedistributionoftectonic-metallogeniczonesinSoutheastAsia.Episodictectonicactivitiesoccurredinthisarchipelagicarea,generatingmetallogenicbeltsinmulti-terranes.SincetheLatePaleozoic,openingandclosureofthePaleotethysandNeotethysledtomultiplesuturezonesbetweendifferentblocks,mainlybetweentheIndochinaterrane,theNambungterrane,theSibumasuterraneandtheWestMyanmarterrane.DuringtheMesozoictoCenozoic,theformationofaccretedterranesandtheirrelatedislandswascausedbysubductionandcollisionprocessesbetweenthePacificandAustralianplatestowardtheEurasianContinent,formingSundalandanditsaffiliatedislands,thePhilippinesanditssubsidiaryislands,thePapuaNewGuineaterraneanditsrelatedislandsandtheSundaepicontinentalarcsystem.Withinthemarginofterranesresultedinthestructuraltransferzones,theirsecondarytectonicunitscanbedividedintoislandarcbelts,back-arcbasins,suturezones,marginalfoldbeltsandorogenicbelts.Themetallogenicassemblagesaremainlydistributedwithinthesestructuralzonesoftheterranes.Accordingtotherelationshipbetweenthesetectonicunitsandthedistributionofmineralresources,thetectonic-metallogenicbeltscanbedividedinto24metallogenicbeltsinSoutheastAsia.Theyarecharacterizedbyadiversityandfrequencyofmetallogenicmaterialcombinationwhichislikelytoreflectthecomplexityofthematerialdistributionduringmineralizationprocesses,mostlybythestructuraltransformationduringthedissociation-convergenceprocessbetweenmultipleterranes.Therefore,theformationoforedepositswasnotonlyrestrictedbytheevolution(openingandclosure)ofPaleo-andNeotethys,butmayalsobecontrolledbytheinteractionoftheterraneswithdifferenttectonicattributeswhichprovidedmultiplesourcesofmetallogenicmaterial.

简介：<正>ONSOUTHERNSTRETCHOPTHES-NTECTONICBELT,CHINAChenGuanghaoandWeiZhoulin(ChangshaInstituteofGeotectonic,AcademiaSinica,Changsha,410013,Hunan,China)S-Ntectonicbelt,southstretching,boundingbeltItcanbeinferredfromthegeophysicaldata,linearstructures,tectonicevolu-tionhistoryandmetallogenythattheS-NtectonicBeltstretchesfurthersouthinadifferentdi-rectionandmannerafterinterceptedbytheRedRiverFault,Thestretchingsegmentistheim-portanttectonicboundaryinIndo-AsiaandassiminlatestheS-Ntectonicbeltwithsomediffer-ences.

简介：Dulaerqiao花岗石在在Erguna山岳和Xingan山岳之间的Xinlin-Xiguitu-Toudaoqiao缝术地区被定位，内部蒙古的东北。岩石主要由K长石，石英，和斜长石组成。这花岗石在晚含碳的时期被扔的锆石LA-ICP-MSU-Pb数据表演(308.7条獥？