简介:Mt.QomolangmaistheloftiestmountainatthetopofHimalayas;themountainpeakisshapedlikeapyramidandpenetratesdirectlyintotheskyofferingaspectacularview.
简介:TheTechniqueofStoneMa-sonryatRdoSbusLungPaThetechniqueofmasonryasusedinconstructioninTibetcanbedatedbacktotheYumbulagangduringtheTuboKingdomanditstillprevailsalloverTibet.Buildingsofallkindsontheplateau,suchaswatchtowersandcivilianresidences,haveadoptedthistechnique.AvarietyofbuildingsshowthishistoricTibetaninheritanceanditsevolution.ToapplythisstonemasonrytechniquetobuildingconstructioncloselyConnectswiththe
简介:<正>OXIDESANDTRACEELEMENTSOFTHECARBONIFEROUSCARBONATEROCKINTIANSHANMT.,CHINAZhangQinhua,QinQingxiangandWeiZhouling(ChangshaInstituteofGeotectonics,AcademiaSinica,Changsha,410013,Hunan,China)oxide,traceelement,carbonaterock,Carboniferous,TianshanMt.TheCarboniferouscarbonaterockwithcomplicatedcompositionandvariousrocktypesandlithofaciesdevelopswellinTianshanMt.,China,andplaysanimportantroleinthestudyoftectonicsandmetallogenyinthearea.Thecontentandvariationcharacteristicsofmainpxidesandelementsareillustratedherebasedonagreatamountofgeochemicaldata.
简介:贝古山沼泽地,在水位经历了期刊变化,在长江边躺,并且它的主导的植物是Phragmitescommunis,Phalarisarundinacea和蓼lapathifolium。以便在贝古山沼泽地的生态系统学习氮和磷的分发特征,作者在Phragmitescommunis,Phalarisarundinacea和蓼lapathifolium测量了全部的氮和全部的磷的内容,并且在有不同植物种类的沼泽地土壤的氮和磷的内容。另外,作者调查了各种各样的植物的影响在上空间、季节(春天/秋天)在沼泽地的氮和磷的分布玷污。在Phalarisarundinacea的氮和磷的内容比在一样的部分的另外的二植物种的那些显著地高。在沼泽地的磷的第二等的污染主要源于Phalarisarundinacea。Phragmitescommunis有效地在湿季节在沼泽地土壤移走氮和磷。蓼的能力移开氮的lapathifolium在植物的3种类之中是最低的。这些调查结果提供一个理论基础让植物种类的选择恢复生态环境并且为清除的时间和深度的选择河边沼泽地上的淤泥。
简介:从5件磷灰石样品和4件锆石样品的分裂轨道标明日期证据,和建模的时间温度热历史自从迟了的侏罗记白垩纪,显示那(150-106Ma),博格达山的uplift过程能被划分成热进化的四个阶段:150-106,75-65,44-24和13-9妈。在44-24妈前,冷却的率和博格达山的南部、北的片断的高举的率是几乎一样,证明Mt.Bogda高举是一个全面过程。自从44-24妈,山的南部、北的片断高举。Bogda显示出差别。在42期间-11妈,博格达山的北片断在一个稳定的阶段,与冷却的率,0.03℃/妈和高举的率正在是0。001mm/a。马夫罗姆到礼品博格达山的北片断在一个快速的冷却并且高举的阶段,与冷却的率,5.72℃/妈和高举的率正在是0.19mm/a。然而,自从26妈,博格达山的南部的片断在一个快速的冷却并且高举的阶段,与凉爽的忘恩负义的人1.24℃/妈和高举的率在26-9期间正在是0.041mm/a妈;4。从9妈的88℃/妈和0.163mm/a到现在为止。
简介:Manysmallmountainglaciershavebeenreportedundergoingstrongshrinkage,anditisthereforeimportanttounderstandhowtheyrespondtoclimatechange.Theavailabilityoftopographicmapsfrom1962,LandsatTMimageryfrom1990andASTER(AdvancedSpaceborneThermalEmissionandRadiometer)imageryfrom2006andfieldinvestigationofsomeglaciersallowacomprehensiveanalysisofglacierchangebasedonglaciersizeandtopographyonMt.Bogda.Resultsinclude:(1)anoveralllossofaglacierizedareaby31.18±0.31km~2or21.6%from1962to2006,(2)amarkeddependenceofglacierareashrinkageoninitialsize,withsmallerglaciersexperiencinghighershrinkagelevels,(3)thedisappearanceof12smallglaciers,(4)astrikingdifferenceinarealossbetweenthesouthernandnorthernslopesof25%and17%,respectively.Asubsetoftheinvestigatedglaciersshowsthatthearea57.45±0.73km2in1962reducedto54.79±0.561km~2in1990and48.88±0.49km~2in2006,witharelativeareareductionof4.6%during1962–1990,and10.8%during1990–2006.Thecorrespondingvolumewasteincreasedfrom6.9%to10.2%.Threereferenceglacierswereinvestigatedin1981andrevisitedin2009.Theirterminusexperiencedamarkedrecession.MeteorologicaldatafromstationsaroundMt.Bogdarevealsthatglaciershrinkageiscorrelatedwithwinterwarmingandanextensionoftheablationperiod.Precipitationonthenorthwestsideoftherangeshowsamarkedincrease,withaslightincreaseonthesoutheastside.
简介:Basedonremotesensingdata,fieldinvestigationandtrenchmeasurementalongthepiedmontfault(Wujumengkou-Dongfengcun)ofMt.Serteng,theverticaldisplacementratehasbeenfoundtobe0.88~1.83mm/asincethelateperiodoflatePleistoceneand0.89mm/asincethemiddleperiodofHolocene.Usingtheprogressiveconstrainingmethod,fivepaleoearthquakeeventshavebeendistinguishedfromtwolargetrenchessinceHolocene.Theyoccurred9000±1300aB.P.,6500±500aB.P.,5770aB.P.,4200±300aB.P.and3250±250aB.P.,respectively.FromthelateperiodoflatePleistocenetothebeginningofHolocene,somepaleoearthquakeeventsmayhavebeenmissedduetoavarietyofreasons.Allofthepaleoearthquakeeventsdisplayedclusteringcharacteristicstoacertainextent.Thefirstdusterwasoccurredaround8900aB.P.,thesecondclusteroccurredbetween5700~6500aB.P.andthelastclusterwasoccurredin3250~4200aB.P.Theintervalbetweenthefirstclusterandthesecondclusterwasabout2400awhilethatbetweenthesecondclusterandthethirdclusterwasonly1570a.Noearthquakeeventshavecutthegroundsurfacealongthisactivefaultsegmentsince3250aB.P.Thelapsetimeismorethantherecurrenceintervalbetweentwopaleoearthquakeclusters.Therefore,thereisapotentialriskforarecurringearthquakealongthisactivefaultsegment.
简介:Calibrationsbetweensodium(Na+)concentrationsfromaMt.Loganicecoreandsealevelpressure(SLP)seriesshowthatNa+concentrationsarecloselycorrelatedwiththeautumn-time(SeptemberOctober-November)Aleutianlow(AleuLow).AdeepeningoftheAleuLowstrengthensthetransportofsea-saltaerosolsfromtheNorthPacifictotheMt.Loganregion.TheMt.LoganNa+recordisusedtodevelopa292a(1688~1979)reconstructionoftheAleuLowrevealingadramaticintensificationofatmosphericcirculationovertheNorthPacificregionsincethe20thcentury.MeanSLPoftheAleuLowwasabout1hPalowerduringthe20thcenturythanduringpriorperiods.ThestrongestdeepeningoftheAleuLowappearedinthe1950s.SignificantcorrelationsarealsofoundbetweentheMt.LoganAleuLowproxyseriesandthePacificdecadaloscillation(PDO)andPacificcirculation(PC)indexduringthe20thcentury.Evolutionaryspectralanalysisoftheproxyrecordshowssignificantperiodicitiesfrom15to30aconsistentwithPDOfluctuationsandthebidecadaloscillationofNorthPacificatmosphere-oceancirculation.Aperiodof11aintheAleuLowrecordmaybeassociatedwiththeSchwabe11-acycleofsunspotactivity.AdditionallongericecorerecordsfromthisregionwillaidintheeffortstofurtherunderstandtheclimaticchangeovertheNorthPacificregion.
简介:AVillageattheFootofMt.MeliZHOUZHENGSkirtedbytheLan-cangjiangandNu-jiangriv-ers,MeliMountainstandsma-jesticallyattheborderbetw...
简介:WhyethnicTibetansareneverdauntedbythehardshipstheysufferwhilemakingpilgrimagestosacredmountainsandlakesbywalkingroundthem?IputthisquestiontoamanwhohadwalkedroundthesacredMt.KhawahGepohineasternTibet28times.Hereishisanswer:"Toendurethosehardshipsduringthepilgrimages,ImeantopunishmyselfforthesinsIhavecommitted,inordertogainfreedomfromanxietyandincreasethevirtuesinmysoul,myinnerworld."Withhelpfromsomelamas,Ilearnedbyheartthewordsofprayerpilgrimskeeputteringwhilewalkingroundthesacredmountain: