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简介：关于矿物质的70-80子类型包括的一组披风矿物质在西藏从podiformchromitite被发现，中国。恢复矿物质包括钻石，coesite，moissanite，wustite，Fe-silides和一种新矿物质，luobusaite。这些矿物质的AM是hand-pickedfrom重矿物质在luobusaite的谷物作为有本国的硅或作为有本国的硅和Fe-Si阶段的共生交互生长的包括的主人矿物质的ophiolite.The的披风橄榄岩podiformchromitite分开。Luobusaite作为不规则的谷物发生，与在尺寸的0.1-0.2公里，由很有细密纹理的总数组成。矿物质是在颜色的钢灰色，金属性的光泽，并且不透明。实验公式(基于2为Si)是Fe_(0.83)Si_2，根据luobusaite的化学成分。X光检查粉末衍射数据：斜方晶的系统，空格组Cmca，a=9.874(14)一，b=7.784(5)一，c=7.829(7)一，Z=16。

简介：Thenewmineral——ximengiteoccursinatindepositatXimengCounty(about420kmsouthwestofKunming),YunnanProvince.Itsassociatedmineralsare:waylandite,monazite,andothertwounnamedbismuthicminerals:Bi-phosphateandBi-sulfate(tentativelynamedhydroxylphosphabismiteBi_2PO_4(OH)_3(?),andhydroxylsulfabismiteBi_2SO_4(OH)_4(?))(PhotosA-F).Theyareallcontainedinthecassiterite-tourmaline-quartzitizedmigmatiticrocks.

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简介：AttheIstOrdinarySessionofthemergedIUGS/IGCCouncil,heldinFlorence,Italy,inconjunctionwiththe32ndInternationalGeologicalCongress(IGC),thefollowingnewofficerswereelected:

简介：InthelastdecadeaNewGeophysicshasbeenproposed,wherebythecrustanduppermost~400kmofthemantleoftheEartharesopervadedbyclosely-spacedstress-alignedmicrocracks(intergranularfilmsofhydratedmeltinthemantle)thatinsiturocksvergeonfailurebyfracturing,andhencearecritical-systemsthatimposearangeoffundamentally-newpropertiesonconventionalsub-criticalgeophysics.EnoughofthesenewpropertieshavebeenobservedtoconfirmthatNewGeophysicsisanewunderstandingoffluid/rockdeformationwithimportantimplicationsandapplications.EvidencesupportingNewGeophysicshasbeenpublishedinawidevarietyofpublications.Here,forclarification,wesummariseinonedocumenttheevidencesupportingNewGeophysics.

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简介：Thispaperstudiesthetemporalandspatialdistributionofgreatglobalearthquakes(MW≥8.0)since1900.Wecomparethetwoperiodsofupsurgesofgreatearthquakesoccurringinthemiddleoflastcenturyandbeginningofthiscentury.Theformerperiodtookplacebetween1950and1965duringwhich13greatearthquakes(MW≥8.0)occurred,includingthreeeventswithmomentmagnitudegreaterthan9.0.Thelargestmagnitudeinthisperiodreached9.6.Thelatterperiodstartsfromthebeginningofthiscentury.Inlessthan12years,15greatearthquakeshaveattackedtheworldwiththelargestmagnitudebeingMW9.1.Onthebasisofcomparisonbetweenthesetwoupsurgesofglobalearthquakeactivity,weinferthattheongoinghighlevelofearthquakeactivitymaycontinueforanotherfiveyearsorso.Numerousgreatearthquakes(MW≥8.0)andmanylargeearthquakes(MW6.0~7.0)willoccurgloballyinthesefiveyears.Inaddition,thispaperalsodiscussestherelationshipsbetweenearthquakeactivityalongtheSumatrasegmentoftheIndian-AustraliaplateboundaryandthatintheBayankalablockinthemiddleofQinghai-Tibetanplateauaswellasintheblocksofthesouthernplateau.TheresultsindicatethattheQinghai-Tibetanplateau,inparticularitsmiddleandsouthernparts,isalikelyplaceforfutureearthquakesofmagnitudeover7.0.

简介：TwoGSSPs(GlobalStandardStratotypeSectionandPoint)fortheOrdovicianSystemwerededicatedinSwedenon25&26May2003.TheceremonieswerewellorganizedandwellattendedandincludednotonlytheunveilingofformalplaquesdescribingtheGSSPsbutalsothedrivingof“goldenspikes”.

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简介：CentralAsiaencompassesnearlyadozencountriesandconsistsofseveralorogeniccomplexes,oneofwhich,theAltaids,isca.1000kmwideand7000kmlong,stretchingfromtheUralMountainsintheWesttothePacificOceanintheEast.ItiscomposedofseveraltectoniccollagesthatwerecreatedbyoceanicsubductionandcontinentalcollisionfromtheLateProterozoictotheendofthePalaeozoic.Thelastdecadewitnessedtheestablishmentoftwocompetingtectonichypothesesforthedevelopmentoftheseorogeniccomplexes.Thefirstviews

简介：Thephysicalmeasuresofmacroscopicseismicintensityhavebeenextensivelystudiedbasedonthenewunderstandingofseismicintensityandthenewanalyticalmethodandnewdatabaseofstronggroundmotion.Newphysicalmeasuresofseismicintensityhavebeenproposed.

简介：小浪变换(WT)方法被采用了把一个原来的地球物理的信号分解成关于象毛孔液体，岩性学，和毛孔结构那样的水库特征包含不同信息的一系列部件。我们基于WT精力系列分析，反映水库液体性质的信号部件被提取开发了一个新方法。我们成功地用这个方法在华中从一块油地处理了真实木头数据。水库液体鉴定的结果同意井测试的结果。

简介：ProjectNo.506MarineandNonmarineJurassic，ProjectNo.508Volcano,CollapseandFaultActivity--“YoungScientistsProject”，ProjectNo.509PalaeoproterozoicSupercontinentsandGlobalEvolution，ProjectNo.510A-typeGranitesandRelatedRockthroughTime，ProjectNo.511SubmarineMassMovementsandtheirConsequences.

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简介：Mr.KanYi'sbookScouringatBridgeCrossings,basedonalargeamountoffieldsurveydata,fieldinvestigationdataandlaboratorytestdata,hasbeenpublishedbyChinaRailwayPublishingHouseonAugust2004inBeijing.Itisamonographicwritingonscouringatbridgecrossings.

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简介：InthispapertheshortagesofexplanationsonthecauseofTangshanearthquakesin1976arepointedout.Earth-quakephenomenaaroundTangshanearthquakesareanalyzedsynthetically,itisnoticedthatthemostprominentseismicphenomenonareseismicdensenessofML=4,butML=3andML=2isnotactiveinthesametemporal-spatialinterval,whichoccurredfrom1973to1975.Wethinkthatthephenomenonshouldcorrespondtorelativeintegrityofthecrustmediumunderhigherregionalstress.AssumingthattheseismicityincircumjacentregioncouldreflectthejostlingextentofsurroundingplatestowardtheChinesemainland,itisinferredthattherearemulti-dynamicalprocessesinNorthChinaregionin1970s,whichsupplythebasicdynamicalsourcetoTangshanearthquakes.Amodelofmulti-dynamicalprocessesandlocalweakeningofthecrustisproposedtoexplainthecauseofTangshanearthquakes.ThismodelcouldunpuzzlemanyseismicphenomenarelatedtoTangshanearthquakes.