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简介：Inrecentyears,thestudyofmantleplumeshasbecomea“hotspot”inearthsciences;enormouspapersanddatahavebeenpublished,andmanymantleplume-relatedquestionshavearisen:DidmantleplumesinthePrecambrianbehavethesamewayastheydotoday?Whataretherolesofplumesintheevolutionoftheearth?Whataretheeffectsofmantleplumesonglobalchangesandmetallogenesis?Theseissuesarefrequentlyencounteredandhotlydebatedinawiderangeofearthsciencefieldssuchastectonicsgeochemistry,geophysics,metallogenesis,

简介：INHIGEOisalong-standingCommissionoftheInternationalUnionofGeologicalSciences(lUGS)andanAffiliateoftheInternationalUnionfortheHistoryandPhilosophyofScience(DivisionofHistoryofScience)(IUHPS(DHS)).Oflate,itsactivitiesarefundedbythesetwobodiesinaratioofabout4:1.

简介：Accordingtotheavailabledataandfieldresearch,basedonthediwatheory,theauthorshavestudiedthegeotectonicevolutionhistoryandtheassociatedminerlizationintheVictoriaarea.IthasbeenshownthatthisareaisinfactapartoftheLachlandiwaregion.TheVictoriaareacanbedividedintogeodomefault-foldzoneandsubsidencezone.Theformercanbesubdividedintothreezones,fromwesttoeast,whicharewesternupliftzone,centraldepressionzoneandeasternupliftzone.TheevolutionhistoryoftheVictoriaareacanbedividedintofourstages-Pregeosyncline,geosyncline,plateformanddiwa.Eachstagehasdistinctsedimentary,magmaticandstructuralfeatures.Ofthefourstages,diwastageisthemostimportantforminerlization.DiwastagestartedintheDevonian.Duringthedevelopmentofdiwa,anumberofgranites,whicharecharacterizedbyhighSiO2andNa2O+K2O,wereformed.Thegraniteswereabundancewithmineralformingmaterial.Ontheotherhand,diwageotectonismreformedandenrichedthegeosynclinalorplatformoredeposits.Therefore,mostoftheoredepositsthatoccurredintheVictoriaareaare,moreorless,relatedwithdiwatectonism.

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简介：Accordingtotheideasandconceptsofsystemsdynamicofcontinentstructure,usingpreviousinformationrelatedtothestudyarea,combininganalysesonorogenicbelt,basinandmagmaticrock,thepresentpapersynthesizesthetectono-sedimentarydevelopmentofsoutheasterncoastregion,China,withspecialemphasisonthemountainmaking,basiningandmagmafcactivity.ThetectonicevolutionafterLateCaledonianorogenywasdominatedbyalternatingriftingandconverging,subsidinganduplifting,mountainmakingandbasiningincentralandsouthernpartsofsoutheasternChinaandtheadjacentregionstotheeastandwest.Seventeengeologicevents,nineeventsofplateorterrainconvergence,andcontinentalcrustaccretion,aswellaseighteventsofintracontinentalriftingandbasinfaulting,arecloselyrelatedtothetectonicandsedimentaryevolutionofthestudyarea.Theaccompaniedintenseandfrequentsedimentation,folding,faulting,magmatismandore-formingprocessallowedhugecoal

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简介：TheJiamusimcdianmassifislocatcdaboutlittlcXinganlingtoLaoycling,casternHeilongjiangProvince.Beinginaccordwiththediwathcory,thcJiamusipalaco-mcdianmassifdevclopspre-geosyn-clinlarchacansialiccrust.KhondalitescricsinthcJiXidistrictmaybcrcputcdasrcprcscntivc,isotopicageofwbichis25OOMa.ThcrcarethcDongfc

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简介：ＬｉｔｈｏｓｐｈｅｒｉｃＳｔｒｅｔｃｈｉｎｇ，ＳｕｂｓｉｄｅｎｃｅａｎｄＴｈｅｒｍａｌＨｉｓｔｏｒｙＭｏｄｅｌｉｎｇ：ＡｐｐｌｉｃａｔｉｏｎｔｏＹｉｎｇｇｅｈａｉ，ＱｉｏｎｇｄｏｎｇｎａｎａｎｄＳｏｎｇｌｉａｏＢａｓｉｎｓｉｎＥａｓｔＣｈｉｎａ＊Ｌｉ...

简介：<正>1IntroductionMostoftheworldwellknowpotashminesaredepositedinmarineenvironment.Regardingtheseriouspotashshortage,nosignificantprogresshasbeenmadeinmarinepotashinChina,whiletheterrestrialpotash

简介：３５Ｍａ－ＡｎＩｍｐｏｒｔａｎｔＮａｔｕｒａｌＰｅｒｉｏｄｉｃｉｔｙｉｎＧｅｏｌｏｇｉｃａｌＨｉｓｔｏｒｙ：ＣｏｎｃｅｐｔｏｆＮａｔｕｒａｌＣｒｉｓｉｓａｎｄＩｔｓＰｏｓｓｉｂｌｅＣａｕｓｅＳｈｉＸｉａｏｙｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏ?..

简介：Thenotableauthorityontectonicsandthehistoryofgeosciences,ProfessorCelalSengorfromIstanbul,hasproducedanotherremarkablebook-which,ashetellsthereader,grewrapidlyfromaninitialpaperintoamassivetome.JustasGeorgesCuvierlikedtheideaof‘burstingthelimitsoftime',soProfessorSengorhasagain‘burstthelimitsofapaper'!

简介：现存的类帕柳鲁斯·米勒被划分成P。ramosissimus和P。spina-christi组织并且是特征地与trilocular由特殊圆翅膀的水果描绘了(或经常bilocular)卵巢并且基础地，triveined与subentire离开到有锯齿的边缘。这里，在结构上保存了winged水果并且联系了Paliurus的压缩叶子(Paliureae，Rhamnaceae)从Tiantai的中间上面的中新世的Shengxian形成被报导，浙江，东方中国。水果能作为Paliurusmicrocarpa李祥川sp被识别。nov，外部形态学的诊断人物和哪个不同于那些的解剖现存并且石块通用成员；叶子能被指定为Paliurussp。种类基于winged水果，P。microcarpa，可能代表只越过P知道的一个古老的中间的连接。ramosissimus和P。spina-christi组织，显示出与P的一种更靠近的亲密关系。ramosissimus与一个更狭窄的翅膀基于resemblant组织更小的水果，并且到P。spina-christi组基于类似的翅膀结构和质地分别地。礼品和以前的石块水果记录的词法分析在全世界显示Paliurus的那多样化在北横渡太平洋区域开始了由晚始新世。macrofossil记录，即，Paliurus的水果和叶子当鉴于变化，在paleoenvironmental地图上投射了时，全球性，大陆人整个时间放(从对始新世中新世)类的过去的分发比礼品宽得多并且属于的显示北半球的一个热带、温暖的适度的领域。因此，在东亚和南方欧洲的热带、温暖的适度的区域的现代限制分离(向东弄平韦斯特亚洲)可能代表冰川的refugia让一些通用的古老的系至少自从终端上新世，熬过严重寒冷。

简介：Determiningthespatio-temporaldistributionofthedeformationtiedtotheIndia-Eurasianconvergenceandtheimpactofpre-existingweaknessesontheCenozoiccrustaldeformationissignificantforunderstandinghowtheconvergencebetweenIndiaandEurasiacontributedtothedevelopmentoftheTibetanPlateau.TheexhumationhistoryofthenortheasternTibetanPlateauwasaddressedinthisresearchusinganewapatitefissiontrack(AFT)studyintheNorthQaidamthrustbelt(NQTB).ThreegranitesamplescollectedfromtheQaidamShanplutoninthenorthtiedtotheQaidamShanthrust,withAFTagesclusteringintheEocenetoMiocene.TheotherthirteensamplesobtainedfromtheLuliangShanandYukaplutonsinthesouthrelatedtotheLuliangShanthrustandtheyhaveshowedpredominantlytheCretaceousAFTages.RelatedthermalhistorymodelingbasedongrainagesandtracklengthsindicatesrapidcoolingeventsduringtheEocene-earlyOligoceneandsincelateMiocenewithintheQaidamShan,incontrasttothoseintheCretaceousandsincetheOligocene-MioceneintheLuliangShanandYukaregion.Theresults,combinedwithpublishedtheCretaceousthermochronologicalagesintheQaidamShanregion,suggestthattheNQTBhadundergorapidexhumationduringtheaccretionsalongthesouthernAsianAndean-typemarginpriortotheIndia-Eurasiancollision.TheCenozoicdeformationinitiallytookplaceintheNorthQaidamthrustbeltbytheEocene,whichisconsistentwiththerecentclaimthatthedeformationofthenortheasternTibetanPlateauinitiatedintheEoceneasaresponsetocontinentalcollisionbetweenIndiaandEurasia.Theimmediatedeformationrespondingtothecollisionistentativelyattributedtothepre-existingweaknessesofthelithosphere,andthereforethedeformationofthenortheasternTibetanPlateaushouldberegardedasaboundary-condition-dependentprocess.

简介：DuringtheEarly-MiddleProterozoicera,threemajorlithostratigraphicunitassociations,namelyHekou-Dahongshan,Dongchuan,andKunyang-HuiliGroups,wereestablishedforthemetamorphosedvolcanicsedimentaryrocksexposedinthesouthwesternYangtzeBlock(SWYB).Theintegrationofpetrology,geochemistryandgeochronologyconstrainstectonicframeworkandevolutionoftheSWYB,inwhichfoursetsofSHRIMPU-PbzirconageswereobtainedfromthevolcanicrocksinterbeddedwithintheMiddleProterozoicsuccessions:1800-1600Ma,1600-1300Ma,1300-1100Ma,and1100-1000Ma.Majorandtraceelementalanalysisindicatethatfourkeytectonicevolutionarystages,eachcoincidingwiththeaboveradiometricageset,oftheSWYBduringtheEarly-MiddleMesoproterozoic.TheSWYBwascharacterizedbyaneast-westerlytrendingriftintheHekou,Dongshan,andDongchuanareas,andseparatebasin-formingeventsduring1800-1600Maarid1600-1300Ma,respectively.IntheSWYB,anintracontinentalriftbasinandariftbasinoccurredintheCaiziyuan-MatangandLaowushanareas,respectivelyin1300-1100Maago.During1100-1000Ma,theSWYBwascharacterizedbytheclosureoftheCaiziyuan-Matangrift-oceanbasin,collisionbetweentheHuiliBlocksandKunyangBlocks,andpresenceofvolcanicaresintheTianbaoshanandFulingpenareas.Accordingly,theSWYBrepresentsanewbasinthatrecordstherelativelycompleteassemblyprocessoftheRodinaduringtheEarly-MiddleMesoproterozoicera.