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简介：DefinitionofanewgeologicperiodfortheIastintervaloftheProterozoicEon,theEdiacaran,wasrecentlyratifiedbytheIUGS.TheEdiacaranPeriodisthefirstProterozoicperiodtoberecognizedonthebasisofchronostratigraphiccriteria,thefirstinternationallyratified,chronostratigraphicallydefinedperiodofanyagetobeintroducedinmorethan120years,andthefirsttobedefinedbya“goldenspike”intheSouthernhemisphere.

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简介：Dalingheornisliweii情报。etsp。nov，一只新enantiornithine鸟在东北中国从早白垩纪Yixian形成被收集。它是在中生代鸟中的一只高度专业化的异种扬抑抑格脚的第一个记录。有shorthypocleidum的塑造Y的叉突与另外的enantiornithines的不同。未成年者掌部比专业柔韧、长掌部。一条长多骨的尾巴与dromaeosaurids并且这样类似于那些的V形臂章20尾的vertebrae创作了，再加亮在鸟和非鸟的theropods之间的进化关系。保存得很好的小翼羽毛和一只异种扬抑抑格脚为Dalingheornis的树木的习惯提供充分证据。

简介：TheFirstInternationalCouncilforScience(ICSU)RegionalMeetingforAsiaandthePacificwasheldfromApril25-27,2005inKualaLumpur,Malaysia.ThemeetingwashostedbytheMinistryofScience,TechnologyandInnovationofMalaysiaandtheAcademyofSciencesMalaysia.WelcomingremarksweredeliveredbyTanSriDatukDr.AhmadZaharudinIdrus,President,AcademyofSciencesMalaysiaandProf.ThomasRosswall,ExecutiveDirector,ICSU.HisExcellencyDato'SriDr.JamaludinJarjis,MinisterofScience,TechnologyandInnovation,Malaysiaopenedthemeeting.About40participantsattendedthemeeting,representingnationalscienceacademiesfromtheAsiaPacificandinternationalscientificunionsthatareactiveintheregion.TheInternationalUnionofGeologicalSciences(IUGS)wasrepresentedbythePresident,Prof.ZhangHongren.Dr.JoyPereira,ChairoftheIUGSCommissiononGeoscienceforEnvironmentalManagement(IUGS-GEM)alsoattendedthemeetingasanObserver.

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简介：Throughtheanalysisoftheprinciple,errorsourcesandprecisionoftrigonometricleveling,thispaperpointsoutthekeyproblemsaboutfirstorderlevelingreplacedbytrigonometricleveling;andforthefirsttimeputsforwardthat,insomegivenconditions,itisnotonlyfeasiblebutalsovaluabletoreplacefirstorderlevelingbyprecisetrigonometricleveling,andprovesitbyexperimentationaswell.Thecontentandconclusionofthispaperhaveconsultingsignificanceandpracticablevalueforoursettingdownrelationalcriterionandproductionpractice.

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简介：摘要：从Ganzhou，江西省和他们忍受的胚胎的骨骼的上面的白垩纪的二个elongatoolithid恐龙鸡蛋被描述。他们在中国与胚胎的骨骼代表第一个oviraptorosaurian鸡蛋并且提供oospecies能被相关到某些恐龙taxon/taxa的第一个例子。二颗卵与在从在卵壳的宏观结构和微观结构的一样的区域的一样的地平线的一个女oviraptorosaurian骨盆内的卵的对一样，并且能被指oospecies，Macroolithusyaotunensis赵，1975。胚胎的骨骼的保存部分的形态学显示他们可能被oviraptorid，从广东省的Heyuanniahuangi或密切相关的oviraptorosaurian生了，它也可能在迟了的白垩纪在Ganzhou区域被过了。二个鸡蛋的胚胎的骨骼不在一样的发展中阶段。在鸡蛋之一，保存vertebrae的Heyuanniahuangi很好被骨化，显示它就被孵。

简介：Withregardtothenumberofmineralspeciesfirstdis-coveredinaparticularcountry,Italyranksfourth,beingprecededonlybyUSA,RussiaandGermany.Importantrock-formingmineralslikeanalcime,anorthite,anortho-clase,antigorite,celadonite,diopside,dolomite,forsterite,humite,leucite,lime,lizardite,magnesiochlo-ritoid,magnesite,nepheline,andsepioliteareamongthe240speciesfirstdiscoveredinItaly.OthersignificantfirstItalianfindingsaresomeimportantindexmineralsoftheUHPmetamorphism(ellenbergerite,phosphoel-lenbergerite,magnesiodumortierite,andmagnesiostau-rolite;secondoccurrenceofcoesite)whichwerediscov-eredinthewell-knownandfirstreportedUHPoutcropoftheDora-MàiramassifItalyisalsothenativelandofabout30zeolitesandofthetwomostabundantmodernspecies:balangeroiteandcarlosturanite,whicharerock-formingasbestos-likemineralsofserpentinitesinthewesternAlps.

简介：Inthefirsthalfyearof2018,therewerechangesinChina'seconomic,industrialstructureandthechangesingovernment'spolicyonlandandmineralresources.China'sgeologicalexplorationiscontinuedtomaintainatrendofthegrowth.Thefundinvestmentingeologicalexplorationdeclinedandtheimpetusforinvestmentininitialexplorationwasinsufficient.Theminingmarketshowedagooddevelopmenttrendandthesocialinvestmentdepictedaslightrise.Inthefirsthalfoftheyear,theinvestmentsinhydrogeologicexploration,environmentalgeologyexplorationandgeologicaldisasterinvestigationincreasedontheyear-onyearbasis.

简介：石块的类Mesocupes的三新石块种抓着标志，M。angustilabialissp。nov，M。latilabialissp。nov。并且M。领子是sp。nov，从内部蒙古的Jiulongshan形成被描述，中国。这些新种类现在是在象在世界上的最旧的一样的中国的石块Mesocupes的开始的三个记录。这发现也扩大这个类的地理分发从对东亚中央。另外，基于最后到的长度的比率倒数第二腹比从Karabastau形成的种类，Daohugou忍受石块的床的年龄可能中间的侏罗记是比Karatau集合并且因而的旧的发泄显然低的新甲壳虫的仪式。

简介：Beijing,Sep.10-13,2002Organizedby:TsinghuaUniversityofChina&InternationalResearchandTrainingCenteronErosionandSedimentation(IRTCES)Sponsoredby:NationalNaturalScienceFoundationofChina(NSFC)InternationalAssociationforHydraulicResearch(IAHR)UnitedNationsEducational,ScientificandCulturalOrganization(UNESCO)InternationalAssociationofHydrologicalSciences(IAHS)KasselUniversityofGermanyChineseHydraulicEngineeringSociety(CHES)German-SinoUnsteadySedimentTransport(GESINOS)http://vww.irtces.orghttp://www.Tsinghua.edu.cnINTRODUCTIONInthepastdecadefrequentlyoccurringfloodsclaimedthousandsoflivesandcausedeconomiclossofbillionsofUSdollars.AmongthemtheMississippiRiverfloodin1993,theRhineRiverfloodin1995,theYangtzeRiverfloodin1998,theHaiheRiverfloodin1996,andthestormsurgesinBangladeshin1991arethemostdevastating.Itisevidentthatboththefrequencyandintensityoffloodingareincreasing.TheDirstInternationalSymposiumonFloodDefenceinSep.2000,initiatedbyProfs.ToensmannandKoch,attractedmorethan200scientistsandengineersgatheringinKasselUniversitydiscussingtheever-increasingconcernedproblemsandsharingexperiencesandstrategiesforflooddefence.ManyscientistssuggestedtocontinuethetechnicalforumandtheTsinghuaUniversity(oneofthetopuniversitiesofChina)andtheInternationalResearchandTrainingCenteronErosionandSedimentation(IRTCES)areorganizingtheSecondInternationalSymposiumonFloodDefence(ISFD'2002)scheduledonSep.10-13,2002.Thepurposeoftheconferenceistoreviewthestate-of-the-artofthestudiesonfloodingandengineeringandnon-engineeringstrategies.Thesymposiumwillfocusonabetterunderstandinglawsoffloodingandenvironmentalproblemsinvolved,differentperspectivesevolved,climatechangeanditsimpactonextremehydrologicalevents,andreportingnewapproachestothestudyandcontroloffloodstrategies.More

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简介：Naturalgashydrates(NGH)isoneofkeyfuturecleanenergyresources.Itsindustrializeddevelopmentwillhelpremitthehugedemandofglobalnaturalgas,relievetheincreasingpressureoftheenvironment,andplayavitalroleinthegreensustainablegrowthofhumansocieties.Basedonnearlytwodecades'studyingonthereservoircharacteristicsintheSouthChinaSea(SCS)andtheknowledgeofreservoirsystem,theChinaGeologicalSurvey(CGS)conductedthefirstproductiontestonanoptimaltargetselectedinShenhuareaSCSin2017.Guidedbythe"three-phasecontrol"exploitationtheorywhichfocusedonformationstabilization,technologiessuchasformationfluidextraction,welldrillingandcompleting,reservoirstimulating,sandcontrolling,environmentalmonitoring,monitoringandpreventingofsecondaryformationofhydrateswereapplied.Thetestlastedfor60daysfromMay10^thwhenstartingtopump,droppressureandignitetowellkillingonJuly9^th,withgasproductionof3.09×10^5m^3intotal,whichisaworldrecordwiththelongestcontinuousdurationofgasproductionandmaximalgasyield.ThissuccessfultestbringsasignificantbreakthroughonsafetycontrolofNGHproduction.

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简介：Adiscrepancyremainsinthefirsttwoleadingempiricalorthogonalfunction(EOF)modesofthetropicalPacificseasurfacetemperatureanomaly(SSTA)basedonobservationssincethe1980s.TheEOF1mode,representingtheElNino-SouthernOscillation(ENSO),isarobustresult.However,theEOF2featureseitherElNinoModoki(EM)orENSOevolutionduringdifferentperiods,whichisprobablyassociatedwiththeimpactsofglobalwarming.TheunderlyingquestioniswhattheEOF2modeofthetropicalPacificwouldbewithoutglobalwarming.UsingtheCMIP5preindustrialscenariotoexcludetheinfluenceofglobalwarming,wefindthattheEOF1modeofthetropicalPacificSSTArepresentsENSOandthattheEOF2modeisnotEM.Accordingtothelead–lagcorrelationbetweentheENSOandEOF2modes,thelinkagebetweenthesetwomodesisasfollows:…ElNino→EOF2→LaNina→–EOF2→ElNino….Byanalyzingtheevolutionofseasurfacetemperature,surfacewind,andsubsurfaceoceantemperatureanomalies,wefindthemechanismlinkingtheENSOandEOF2modesistheair–seainteractionassociatedwiththeENSOcycle.ThisresultsuggeststhattheEOF2moderepresentsanaspectofENSOevolutionunderpreindustrialconditions.Therefore,thisstudyfurtherindicatesthattheEMisprobablyduetotheinfluenceofglobalwarming.