简介：Thispaperdeducedamoregeneralerrordistribution,thep-thpow-ernormdistribution,basedonthefoundationalpropertiesofrandomerrors.
简介：Thermodynamicpropertiesoffluidsareessentialfortheunderstandingofthegeochemicalbehaviorofvariousprocesses,Thepaperintroducesthemostupdatedcomputermodelingandsimulationmethodsinthestudyofthermodynamicsofgeofluids,inclduingsemiempiricalmodels(suchasequationofstate)andmoleculardynamicsandMonteCarlosimulation.Awell-establishedsemi-empiricalmodelcaninterpolateandextrapolateexperimentaldataandyieldmuchphysicochemicalinformation.Computermodelingmayproduce'experimentaldata'yieldmuchphysicochemicalinformation.Computermodelingmayproduce'experimentaldata'evenunderexperimentallydifficultconditions.Theyprovideimportantmethodsforthestudyofgeologicalfluidsystemsonthequantitativebasis.
简介：Thedynamicalframeworkofthenine-levelversionoftheIAPAGCMispresentedinthispaper.Theemphasisofthemodel’sdescriptionisputonthefollowingtwoaspects:(1)Amodel’sstandardatmosphere,whichisasatisfactoryapproximationtotheobservedtroposphereandlowerstratospherestandardatmosphere,isintroducedintotheequationsofthemodeltopermitamoreaccuratecalculationoftheverticaltransportterms,especiallynearthetropopause;(2)Theverticallevelsofthemodelarecarefullyselectedtoguaranteeasmoothdependenceoflayerthicknessuponpressureinordertoreducethetruncationerrorinvolvedintheunequalintervalverticalfinite-differencing.Fortestingthemodel,twokindsoflinearbaroclinicRossby-Haurwitzwaves,oneofwhichhasadynamicallystableverticalstructureandtheotherhasarelativelyunstableone,areconstructedtoprovideinitialconditionsfornumericalexperiments.Thetwowaveshavebeenintegratedformorethan300daysand100daysre
简介：Inthepaperthe5°×10°latitude-longitudegridpointdataofdaily500hPageopotentialheightovertheNorthernHemisphere(NH)insummer(June—August)during1980sareused.Thebasepoint(20°N,120°E)isselectedtocalcu-latepointcorrelationbetweenthebasepointandothergridpoints.WefindthatthesummerheatsourceanomalyofthetropicalwesternPacificcausesanomalyofsummergeneralcirculationoverNHandteleconnectionofgeneralcircula-tionsimilartoPNApatternformsfromEastAsiatoNorthAmerica.Theteleconnectionsshowgreatinterannualchanges.
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简介：Theatmosphericgeneralcirculationmodelcoupledtothemixedlayeroceanmodelhasbeenusedtosimulatethechangesoftheglobalsoilmoisture.Comparingthesimulatedresultswithobservations,itisshownthatthemodelisca-pableofdoingsensitiveexperimentsaboutthecarbondioxidechange.The2×CO2/1×CO2comparisonshowsthattherearetheobviouschangesofthesoilmoistureintheglobalforfourseasons.Therearethewetsoilmoistureinthelowerlatitudesofbothhemispheresanddrysoilmoistureinthemid-dlelatitudesofbothhemispheresforfourseasons.Thedrysoilmoistureinsummerandwetinotherseasonsarefoundinthenorthernhigherlatitudes.TheanalysesofthephysicalfeedbacksresponsiblefortheCO2-inducedchangesofsoilmoistureshowthatthebud-getsofthesurfacewaterandheataretheimportantfactors.
简介：InZhangbalingTectonicBelt,twotypesofmineralization,auriferousquartzveinsandalterationhalos,canobservedwithinmanydeposits.Thepressureofmetallogenesisofauriferousalterationhalosismuchhigherthanthatofquartzvein,thetemperaturesofmetallogenesesofthesetwotypesoforebodiesaredon'tthesameGeochemistrystudyindicatesthatbothofthemaremicro-mesothermaldepositsrelatedtoYanshaniangranites.Theresultsofprotonmicroprobeanalysisofsulphidesfromthegolddepositsintheareashowthatthe'invisible'goldexistedinsulphidesisintheformofmicroinclusions,andtheconcentrationof'invisible'goldinsulphidemineralswithinquartzveinispoorerthanthatfromalterationhalos.Fieldobservationshowsthatthestructuralmodalityofthefracturescontrollingtheorebodiesofauriferousquartzveinisdifferentfromthatoftheauriferousalterationzones.Thefracturecontrollingtheorebodiesofauriferousalterationhalosiscompress-shearfracture,auriferousquartzveiniscontrolledbyextensivefault.Thealterationhaloscrosscutbyauriferousquartzvein.Thewallrocksoftheformeralteredstronglyanddevelopedalterationzoneswell.Thewallrocksofauriferousquartzveinalteredslightly.Theresultsoftectonogeochemicalstudyshowsthattheconcentrationofassociatedmetallogenesiselementsandintensityofalterationarepositivelycorrelatedwithtectonicdeformationstrengthforauriferousalterationhalos.Itindicatesthatitisprobablyageneralcharacterformicro-mesothermalgolddepositsduetothemultistagesofmetallogenesestookplace.Thetectonicenvironmentisthemostimportantfactdeterminingthemechanismoffluidflowandprecipitationofgold,andthenthetypesofmineralizationandmodesofgold.
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![Resolution adopted by the <b style='color:red'>General</b> Assembly [on the report of the Second Committee （A/60）488/Add. 1）] 60/192. International Year of Planet Earth](/image/thesis11 "Resolution adopted by the <b style='color:red'>General</b> Assembly [on the report of the Second Committee （A/60）488/Add. 1）] 60/192. International Year of Planet Earth")