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简介：TheNanlingMountains,atlatitude23.5"-25.5"N,isafamousnonfcrrousmctalzoneinChina’ItissituatedatthejuncturcofGuangdong,GuangalandHunan,runningcasttowestingencral.TlicrcarefourclcmentsformingthcNanlingMountains’Extcndingfromeasttowcst,oneisgranitcformedfromtlieIndosiniantothcYansbanianorogcny,andespecia

简介：　　1Introduction　　Itiscommoninmobilebeltsthatupliftingmountainsareneighboredbysynchronouslysubsidingbasins.Thecouplingmechanismofsuchsubsidenceandupliftisanimportanttargettoclarifythedynamicsofmobilebelts.WeinvestigatethecoupledmountainupliftandbasinsubsidenceintheCentralJapanhighland,thejunctionofthreeislandarcs(theNortheastJapan,theSouthwestJapanandtheIzu-Ogasawaraarcs).Thehighlandover3000minheightiscomposedofmountainranges,plateausandintramountainbasins(Fig.1).……

简介：<正>TheTongkuangyuporphyrycopperdepositintheZhongtiaoMountains,China,istectonicallylocatedonthesouthernmarginoftheNorthChinaplatformandonthenorthernmarginoftheLateArcheanZhongtiaoshanintracontinentalriftbasin.Thedepositoccursinacopper-bearingformationoftuffaceousvariegatedsandshale-K-richbimodalvolcanicrocksoftheTongkuangyuFormationoftheLateArcheanJiangxianGroup,andtheorebodiesarelocalizedinatransitionportionbetweentuffaceousvariegatedsandshaleandbimodalvolcanicrocks.Thehostrocksconsistmainlyofmetagranodiorite-porphyry,meta-quartzmonzonite-

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简介：在从theZhongtiao山的南部的Sushui建筑群的Paleoproterozoic钾的granitoids产出1968-1944妈的虾锆石U-Pb年龄。Lithologically，potassicgranitoid系列由monzodiorite，石英二长岩和syenogranite主要组成。他们的痕量元素和Sm-Nd同位素特征显示他们从太古代的TTG岩石的部分融化在被导出一过去变厚的大陆地壳。这钾的granitoidseries的岩石成因论在thePaleoproterozoic在Trans北方中国造山带以内暗示collisional环境，它支持东方、西方的大陆块在Paleoproterozoic正在被混合的一个构造模型。

简介：ThequestionwhethertherehavebeenQuaternaryglaciationsintheDaHingganareahaspuzzledglacialgeologistsformanyyearsbecausenosufficientglacialevidencehasbeenfoundinthisarea.ThestudyofQuaternaryglaciersintheDaHingganareaisalsoakeyissueoftheglaciologyinChinabecauseofthespeciallocationofthisarea.Inthepasttwoyears,alargenumberofcompleteandtypicalglacialvestigeshavebeenfoundinHexigteninthesouthernDaHingganMountains,suchasfossilcirquegroups,horns,knife-edgecrests,terminalmoraines,glacialsteppedstones.Theselandformsarelocatedatawatershed,whicharethusimpossibletobeformedduetotectonicprocesses,waterorweathering,butcanonlybeformedbyglaciation.ThecalculatedflatindexesofthefossilcirquesintheHexigtenare1.7-4.5,4-5and1.3-5,whicharewithintherangeof1.7-5thatistheflatindexofrealcirques.Thetypicalandcompletemoraineshavealsobeenfoundinthisarea.AlltheseglacialvestigesprovethattheQuaternaryglaciersdidexistintheDaHingganMountainsofeasternChina.Thus,itisofimportantscientificsignificancefortheresearchonChinese,eventheglobalclimaticandenvironmentalevolutionsincetheQuaternary.

简介：ThereareobviousdifferencesinthemineralassemblageandmetamorphicP-TconditionsbetweentheeclogitesfromthenorthernandsouthernpartsoftheeasternDabieMountains.ThosefromthenorthernpartofthemountainsaredevelopedinAlpineperidotiteandgneiss.Theyhaveamineralassemblageofgarnet+diopsidewithnoquartz,andwereformedattemperaturesof600℃-740℃.Thosefromthesouthernpartaredevelopedingneissandmarble.Theyconsistofgarnet+omphacite+lessquartzandweremetamorphosedattemperaturesintherangeof650°-800℃.Thesedifferencessuggestthattheformermaybeformedduringthemetamorphismofthedeepsubductedoceaniccrust,whereasthelattermaybegeneticallyrelatedtothesubductionofthecontinentalcrustinthisarea.

简介：Therearefourunitsofhigh-pressuretoultrahigh-pressuremetamorphismextendingfromsouthtonorthacrosstheTongbai-DabieMountains:theepidote-blueschist-faciesunit,thelow-temperatureeclogitefaciesunit,theultrahigh-pressureeclngitefaciesunitandthemedium-temperatureeclogitefaciesunit.ThelatertwounitswereformedduringtheCaledoniansubductionbetweentheTongbai-DabiemicroplateandtheNorthChinaplate,theformertwounitsaretheproductsofIndosiniancontinental-continentalsubductionandcollisionbetweentheYangtzeandtheNorthChinaplates.

简介：Henglingguan和Beiyu变形granitoids，在Zhongtiaoshan前寒武纪的建筑群的西北分布式，包括trondhjemites和计算碱的monzogranites，与太古代的ZhaiziTTG片麻岩显示恼人的接触。并且Beiyumetamorphicgranitoids主要由trondhjemites组成，在Hujiayu背斜褶层的核心分布式。分别地，标明日期加权平均值~(207)Pb/~(206)Pb变老的数据表演的新虾锆石U-Pb是为Henglingguan变形计算碱的monzogranites和Beiyumetamorphictrondhjemites的2435.9Maand2477妈并且揭示600妈继承了的～2在magmatic锆石的核心。Whole-rockgeochemical数据显示那所有Henglingguan和Beiyu变形trondhjemitesandcalc碱的monzogranites属于遇见了铝土的中等钾、高钾的calc-alkalineseries。这些岩石被相对高的全部的碱内容描绘(Na_2O+K_2O，在to9.08%上面)，弄空的Nb，Ta，P和Ti，和衰退权利的REE模式与对高LREEs/HREEsfractionation中等(吝啬的比率(La/Yb)_n=25)。在多元素蜘蛛图的Henglingguan和Beiyumetamorphictrondhjemites显示negativeRb，Th和K异例由原始披风使正常化。Sm-Nd同位素的数据表明这些granitoids有起始的ε_(Nd)到+2.4和Nd的(t)=-1.2弄空T_(MD)=的披风模型年龄2622马马。所有thesegeochemical特征显示这些granitoids在一条大陆边缘的弧被形成，并且trondhjemites主要从少年的部分融化发源玄武岩的材料并且然而，Henglingguan变形计算碱的monzogranites源于在一条大陆边缘的弧下面在古老的外壳中材料再循环。花岗石的岩浆在他们的形成期间经历了污染和分离结晶。

简介：因为唯一的地理地点和Qinling山的重要生态的效果，它的植被和气候的重建需要全面研究。我们需要认为一条多重代理的途径在在Qinling山恢复paleovegetation和气候上获得更多的信息。黑碳(BC)被植被和石块燃料的不完全的燃烧生产，并且是一个好代理，记录paleoenvironmental信息。然而在Qinling山，什么，并且是否是BC的特征BC稳定的碳同位素(δ13CBC)能被用作一个新代理学习古老的植被，需要仍然推进学习。为了为由BC学习paleoenvironmental建立一个健全基础，在Qinling山代理，我们在山的北斜坡上在BC的现代过程上执行了系统、详细说明的学习。我们分析了稳定的碳同位素和器官的碳的碳集中(%SOC，δ13CSOC)和BC(%BC，δ13CBC),并且从系统地取样的表面土壤识别了花粉集合。C4的计算比率在植被种的结果表演(%C4)基于δ13CSOC数据在表面植被和花粉集合反映C4植物的类似的分布。δ13Cbc价值与δ13Csoc价值，和他们的差别(Δ13CSOc-bc)在低范围。这些数据显示那δ13Cbc和δ13Csoc有很类似的特征。表面土壤δ13Cbc价值能象δ13CSOC价值，和δ13Cbc代理能在Qinling山的北斜坡在paleovegetational研究有效地被使用。

简介：TherearefourtypesofmetamorphicrocksintheMarinwobofault,i.e,cataclasite,mylonite,mictositeandmigmatiticgranite,andtheformationoftheserocksisduetotheprogressivemetamorphismofthepyroclastics.ThefluidsplayaveryimportantroleinthemetamorphicprocessoftheserocksintheMarinwobofault,themostimportantfeatureisthatthefluidsnotonlyresultinthemigrationofthemajorelementsofthedeformationrocks,butalsoresultinthevolumelossofthedeformationrocksinthedeformationprocess.Thusthemigrationlawsofthemajorelementsindifferentstagesoftheprogressivemetamorphicprocessarediscussedaccordingtomassbalanceequations.Finally,thequantitativeanalysisofthemasslossandvolumelossofthedifferentrockstheinMarinwobofaultisdiscussedinthispaper.

简介：FIA广泛地被使用超过一十年了解开变丑和变形难题。因为在岩石中的组合layering总是重新激活多重变丑在哪儿发生了，Orogenic处理在历史或orogenesis挑战科学家期间早发展，几乎不离开在矩阵保存的生叶开发的历史的小证据。在科罗拉多的落基山脉的山麓丘陵，美国如果porphyroblasts没在影响了这些岩石的多重变丑事件期间成长或如果他们旋转了，当这些事件发生了，包含一直不是可区分的四个FIA集合(趋势)的继任。当变丑继续了，他们表明两变丑和isograds的地点划分显著地变化了。

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简介：由细丝状的cyanobacteria，海藻的coenobia和acanthomorphicacritarch组成的器官墙的微化石的一个协会从辣椒山页岩形成(PMSF)的非石灰质的claystones和mudstones被记录了，在辣椒山在它的stratotype区域定位了，它是在波兰的神圣的生气的山的部分。这些沉积代表ysog的最旧的阶层??????????h

简介：ThetectonicactivitiesoccurringsincetheCenozoicinthenorthernpartoftheQinghai-TibetPlateau（theregionfromtheEastKunlunMountainstotheTanggulaMountains）wereprobablycausedbytheintenseintraplatedeformationpropagationafterthecollisionbe-tweentheIndianplateandtheEurasianplate.Theirmainexpressionsincludethesubstantialup-liftingoftheplateau,alternationofhorizontalextensionandcompressionundertheverticalgreatestprincipalstressσ1,occurrenceofrift-typevolcanicactivity,formationofthebasin-rangesystem,andsuccessiveeastwardextrusionofblocksresultingfromlarge-scalestrike-slipfaulting.Geophysicalexplorationandexperimentshaverevealedthatthereexistclose-lyalternatinghorizontalhigh-velocityandlow-velocitylayersaswellaslithosphericfaultsofaleft-lateralstrike-slipsenseinthelowerpartofthelithosphere（thelowercrustandlithosphericmantle,60-120kmdeep）.Basedonanintegratedstudyofthegeological-geophysicaldataavail-able,theauthorshaveproposedamodelofdeep-seatedmantlediapirandtheassociatedtectonophysicalprocessasthedynamicsourcefortheupliftofthenorthernpartoftheQinghai-TibetPlateau.

简介：TheTan-LufaultzonejoinstheDabieMountainsonitseasternmargin,andoffsetstheDabieandSuluorogenicbeltssinistrallyforabout500km.Onthebasisofcalculationoftemperatureandpressureexperiencedbythetwophasesofthefaultzoneaswellasthethermo-chronologicalinformationonmylonitefromtheearlierandlaterTan-LufaultzonesontheeasternmarginoftheDabieMountains,thispaperdiscussesthedelaminationhistoryandupliftingmagnitudesoftheDabieMountainsfromearlierJurassictoearlierCretaceous.Frommineralassemblages,mineraldeformationandmuscovite-chloritegeothermometrycalculation,itisknownthatthetemperatureexperiencedbythetwophasesofTan-Lufaultzonesarebetween400℃and450℃,andtheconfiningpressuresarebetween0.25Gpaand0.36GPafortheearliershearzonesand0.24-0.39GPaforthelateshearzones.AccordingtothegeobarometryofSi-in-phengiteandbyconsideringshearheatingandtectonicover-pressure,itisconcludedthatthemaximumformationdepthsforthetwophasesoftheductileshearzonesarenotmorethan12km.Differentialformationdepthsforthetwophasesofshearzonesare1-2kmatmost.Atabout190Maand128Ma,theTan-Lufaultzoneexperiencedtwophasesofcoolingevents.Duringthisperiod,theeasternmarginoftheDabieMountainsexperiencedatectoniccalmperiodandnouplifting.AccordingtoinformationfromtheTan-Lufaultzone,theupliftingmagnitudesoftheDabieorogenicbeltsarenotmorethan12kmduringtheearlierCretaceous.