简介：<正>Uraniumisatypicallithophileelement,havingoutstandinggeo-chemicalcharacteristicsofassociationwhithhighSiO2,peraluminousandmarginallyperalkalicrocks.Inevolutionprocessofallgeologicalhistory,uraniumgatherswithoutinterruptioninuppercrust.Urani-ummineralizationiscloselyrealtedwithevolutioncharacteristicsofthecontinentcrust.1.Itwasnotuntilthecontinentcrustevolvedtocertainmaturedegreethaturaniumbeganmetallization.TheoldesturaniumdepositontheearthoccurredintheDelanshiwa（Kapuwaer）district,which

简介：在土壤外壳开发的降雨事件运动的影响经由实验室实验和基于物理的水文学反应模拟被调查。流量和土壤水内容数据被分析以便在许多降水条件下面学习不同外壳的开发时期。当一个稳定的状态，能被雨点影响的一个扩大时期打破，被发现为外壳并且，随后存在时，结果证明显著地改变的外壳的形成玷污浸透的水力的电导率(K)和流量流量特征。在K的减少为下游动人的事件象86%一样高，并且72%为在上游动人的事件，说明降雨运动的方向比降雨紧张和持续时间在外壳形成上有更重要的影响。同样下游动人的降雨事件可以比那些移动有更大的效果在上游，在雨点影响前的一个depositional外壳的发展可以在决定最后的K价值起一个重要作用。

简介：Platemotionisoneofthemajordynamicsourcesfordeformationinthecrustandthemantle.SincethedeformationinthecrustcanbeobservedbyGPSandgeologicalobservation,thecomparisonbetweenthedeformationofthecrustandthatofthemantlebecomesoneofthemajormethodsavailableforstudyingthecouplingbetweencrustmovementandmantledeformation.RegionalcrustalstrainratetensorvaluesinChina,inferredfromQuaternaryfaultslipratesandearthquakedeformationdatawithinareasofapproximately200×200km,areinterpolatedwithsmooth,continuousfunctions(spline)todetermineaself-consistentmodelvelocitygradienttensorfieldforthepresent-dayChinesecontinent.Intheinterpolationprocess,GPSvelocityvectorsarealsomatched,withinadefinedframeofreference,bythemodelvelocityfield.Thedirectionsofsheardeformationcalculatedfromthemodelvelocityfieldarecomparedwiththefastdirectionsofshear-wavesplittinginferredfromSKSphasesandPnwaves.Theresultsmightrepresentthesheardeformationinmantleandthedeepcrust,respectively.Thereisarelativelylargedifferencebetweentheaveragedirectionofcrustalshearandthatofmantleshearintheareaofactivetectonics,whichmayindicatethatintheseactiveareasthecrustandthemantlemaybedecoupled.

简介：

简介：在现在的学习，为129碘(129我)在铁锰合金，外壳被开发并且129iodine/127碘(129I/127我)在铁锰合金外壳中的比率被加速器团spectrometry(AMS)测量。发达方法被使用分析129I/127我在从中间和平的海洋收集的二铁锰合金外壳MP5D44和CXD08-1的比率。结果显示出那129I/127我在MP5D44和CXD08-1外壳中的比率从7湩敧变化吗？？

简介：Wepresentacrust-basedprocedureformodelinghumanbeing’sbone,whichisbasedonvoronoidiagramanditsdual,Delaunaytriangulation.Inthree-dimensionalspace,thecrustalgorithmcangeneratea3D-modelusingasetofsamplepoints.ThepurposesofthispaperistoextractprecisecontourfromCTseries,thenrefertothesecontoursassamplepoints,andthenapplythecrustalgorithmtothesesamplepointstogetthreedimensionalmesh.

简介：

简介：ThemainlandofChinaiscomposedoftheNorthChinaCraton,theSouthChinaCraton,theTarimCratonandotheryoungorogehiebelts.Amongstthethreecratons,theNorthChinaCratonhasbeenstudiedmostandnotedforitswidely-distributedArcheanbasementrocks.Inthispaper,weassessandcomparethegeology,rocktypes,formationageandgeochemicalcompositionfeaturesoftheArcheanbasementsofthethreecratons.Theyhavesomecommoncharacteristics,includingthefactthatthecrustalrockspriortothePaleoarcheanandthesupracrustalrocksoftheNeoareheanwerepreserved,andTonalite-Trondhjemtite-Granodiorite(TTG)magmatismandtectono-magmatismoccurredatabout2.7Gaandabout2.5Garespectively.TheTarimCratonandtheNorthChinaCratonshowmoresimilaritiesintheirearlyPrecambriancrustalevolution.SignificantfindingsontheArcheanbasementoftheNorthChinaCratonareconeludedtobe:(1)thetectonicregimeintheearlystage(>3.1Ga)isdistinctfrommodemplatetectonics;(2)thecontinentalcrustaccretionoccurredmostlyfromthelateMesoarcheantotheearlyNeoareheanperiod;(3)ahugelineartectonicbeltalreadyexistedinthelateNeoarcheanperiod,suggestingthebeginningofplatetectonics;and(4)thepreliminarycratonizationhadalreadybeencompletedbyabout2.5Ga.HadeandetritalzirconswerefoundatatotalofninelocationswithinChina.Mostofthemshowclearoscillatoryzoning,sharingsimilartextureswithmagmaticzirconsfrominterrnediate-felsicmagmaticrocks.ThisindicatesthatafairquantityofcontinentalmaterialhadalreadydevelopedonEarthatthattime.

简介：

简介：EasternChinaandvicinalseaareas(98°~150°E,5°~50°N)arelocatedinthejunctionzoneofEurasianandPacificplates,anditisalsoprofoundlyinfluencedbythecollisionbetweenIndianandEurasianplates.Weutilizedsurfacewavedatarecordedby35digitalseismicstationsinthearea,extracteddispersioncurvesoffundamental-modeRayleighwavesalong1252pathsbymeansoftime-frequencyanalysisbasedonmultiple-filterandothertech-niques.Thestudyareawasdividedintoagridof1°′1°,groupvelocitydistributionsoffundamentalRayleighwavesbetween10~158sweredeterminedbyOccam￠sinversion.Thesevelocitydistributionsroughlydepictthelateralvariationsofshearwavevelocitiesindifferentdepthranges.WiththedeterminedpurepathdispersionswefurtherinvertedfortheSwavevelocitystructuresalongtwoprofilesfromeasternTibettoPacificOceanandfromSouthChinaSeatoMongolia.Itisfoundthatthelateralheterogeneityisobviousdownto400kmdepth,andthevelocitystructuresarecorrelatedwithtectonicunitsinthestudyarea.

简介：Onthebasisofaone-by-onelatitude-longitudegridthree-dimensionalseismicvelocitymodel,thecrustalPwavevelocitystructureineasternChina(105-125°Eand18-41°N)isobtained,andasetofgeothermsforeachgridisestablishedforP-TcorrectiononP-wavevelocities.Theaveragedepthsofsub-crustallayersandtheiraverageP-wavevelocitiesof18tectonicunitsineasternChinaareexhibited.Ourresultpresentsa32-34kmthickcrustbeneatheasternChina,whichisthinnerthanpreviousstudies,withanaveragevelocityof6.54km/s,correspondingtoa5kg/m3variationincrustalmeandensity.ThethickerupperbutthinnermiddleandlowercrustresultsinaloweraverageseismicvelocityofeasternChina.AnintermediatecrustalcompositionwithaSiO2contentof59.7wt%hasbeenestimated.However,thereexistsasignificantlateralvariationinthecrustalstructuresamongthetectonicunitsofeasternChina.ThestructureandcompositionfeaturesofsomeregionsineasternChinaindicatethatextensionhasplayedanimportantroleinthecontinentalcrustevolutionofeasternChina.

简介：

简介：现在的工作被奉献给在冻结的magnetar赋予以对一个电场直角的一个极端强壮的磁场的外壳中演变的波色子的学习，两个都由周期的功能描述了。我们沿着盎士通过一个维的潜在的障碍讨论量通道过程。KleinGordon方程的答案以Mathieu为可计算出来的粒子的精力范围，正在转弯从的功能被表示对指数地沿着盎士种模式摆动。在JeffreysWentzelKramersBrillouin框架以内，传播系数在不稳定性范围的中间为粒子动量被计算。

简介：<正>ThenorthChinablockisborderedonthenorthbytheYinShan,onthewestbytheHelanShan,onthesouthbytheQinLing-DabieShan,andtotheeastbythesea.ThesouthChinablockisborderedonthenorthbytheDabaShan(QinLing)-DabieShah,onthewestbytheLongmenShan-DaliangShan,onthesouthwestbythegreatfaultalongtheRedRiver,andtotheeastandsoutheastbythesea.Thetopographyofthenorthissimpleandeven,likeatwo-stagedterracehigherinthewest.Thoughthatofthesouthisalsohigherinthewest,itisveryunevenwithaboundantlowerandmiddlemountainsandhills.TheQinLing-DabieShanisanarrowbeltwiththe

简介：Goldenrichmentmechanismofore-formingfluidistheessenceofgoldmetallization.Thispapersummarizesthedistinguishingsymbolsofmantlefluidandeffectofcrust-mantlestructureonfluidmovement.Fluidmovingprocessesincludeosmosis,surge,gas-liquidalterna-tionandmutationoffluidspeed.Duringfluidmovement,goldwillbeenrichedgradually.Final-ly,alayeredcirculatorysystemisillustratedinthispaper.

简介：Thecurrentadvancesinthestudyofgeochemistryandpaleo-oceanographyoftheCo-richcrustarereviewedinthispaper.WesummarizethestudyofgeochemistryoftheCo-richcrust,discussthediffusionofelementsintheCo-richcrustandtheexchangewithambientseawater.Besides,wediscusstheeffectofphosphatizationandsubstraterocksonthecompositionoftheCo-richcrust.Wealsointroducetheapplicationofstableisotopes(includingthestableisotopesofPb,Nd,andHf),radioactiveisotopes(includingtheradioactiveisotopesofBe,UandTh),andelements(includingthemajorelements,minorelementsandrareearthelements)tothestudyofpaleo-oceanographyoftheCo-richcrust.

简介：地热的精力潜力通常在常规或设计的系统并且在一座单个水库的规模的上下文被讨论。而为常规水库的探索是相对容易的，与发现靠近到或甚至在表面的资源的表达式，为非常规的系统的探索依靠内在地与深度增加并且寻找最大化这增加的赞成地质的环境的温度。到utilitise我们确实有的信息，我们经常与捕获主导的位于可得到的探索数据下面过程的物理的模型一起吸收。这里，我们讨论计算建模途径到探索在一地区性或外壳规模，用到在盆的盆或系统以内的地热的水库的申请。目标水库有(至少)适当温度，渗透并且在可存取的深度。我们讨论导致工具地球的有效使用的软件开发途径。我们在建模的过程探索它的角色，理解计算错误，importingandexporting适用于地质的系统underpinning的地质的知识广东省，中国。

简介：Microbeswereculturedandidentifiedfromthesaplescollectedatvariousdepthsin4weatheringprofilesofREE-bearinggranitesinGonghe,Guangdong,Themicrobeswerefoundexistingatthedepthof0-5minalltheprofiles.Themainmicrobesincludecoccus(Staphylococcus,Streptococcus),bacillus(Bacillus,ClostridiumandEscherichiaColi),actinmycesandfungi(Saccharomycete,Penicillium,Fusarium,AspergillusAigerandMucor),Thenumberofcoloniesdecreasesdownwardsintheprofiles.ExperimentalstudiesshowthatallthemicrobesusedintheexperimentcanacceleratedownwardmigationofREEintheexperimentaltubes.,TheabilitytoacceleratethemigrationofREEdecreasesinasequenceoffungi→actinomyces→acillus→coccus.ThemicrobescanchangethemodesofoccurrenceofREEintheweatheringcrust.Thecoccus,bacillusandactinomycescanincreasetheamountsofREEinionstate,whereasthefungihaveastrongerabilitytofromorganiccompoundingREEandaccumulateREEthanthebacteriado.

简介：

简介：