简介：采用GM70手持式二氧化碳测试仪等测量仪器,对兴文石海洞乡天泉洞内CO2浓度进行测量。根据对天泉洞2008年7、8月CO2浓度的实测数据资料,从高程、洞道横断面大小、洞道深度、游客等影响因素对CO2浓度分布的影响进行分析,给出了洞内CO2的分布特征。研究发现:高程对CO2浓度影响较小;洞道越深、洞断面越小,CO2浓度越大;游客对溶洞内CO2浓度贡献很大;目前洞内CO2浓度还不足以威胁到游客的身体健康。得出的结论和实测数据为保护游客身体健康和洞穴旅游开发管理提供了科学依据。

简介：ThedensitiesofCO_2inclusionsinmineralsarecommonlyusedtodeterminethecrystallizingconditionsofthehostminerals.However,conventionalmicrothermometryisdifficulttoapplyforinclusionsofsmallsize(<5-10μm)orlowdensity.RamananalysisisanalternativemethodfordeterminingCO_2density,providedthattheCO_2density-Ramanshiftrelationisknown.ThisstudyaimstoestablishthisCO_2density-RamanshiftrelationbyusingCO_2inclusionssynthesizedinfusedsilicacapillaries.Byusingthisnewly-developedsynthetictechnique,weformedpureCO_2inclusions,andtheirdensitiesweredeterminedbymicrothermometry.TheRamananalysisshowedthattherelationbetweenCO_2density(Ding/cm3)andtheseparations(△incm~(-1))betweenthetwomainbands(i.e.Fermidiadbands)inCO_2Ramanspectracanberepresentedbyacubicequation:D(g/cm~3)=0.74203(-0.019⊿~3+5.90332⊿~2-610.79472⊿+21050.30165)-3.54278(r~2=0.99920).OurcalculatedDvalueforagiven⊿isbetweenthoseobtainedfromtwopreviously-reportedequations,whichwerederivedfromdifferentexperimentalmethods.AnexamplewasgiveninthisstudytodemonstratethatthedensitiesofnaturalCO_2inclusionsthatcouldnotbederivedfrommicrothermometrycouldbedeterminedbyusingourmethod.

简介：CO2富有的冷弹簧在Wudalianchi发生在活跃火山附近()，东北中国。弹簧富于CO2，与HCO3吗？作为占优势的阴离子并且提高了全部的溶解固体(TDS)的内容(>1000mg/L)，Fe2+(>20mg/L)，Sr(>1mg/L)，并且溶解Si(>20mg/L)。弹簧的逃离并且溶解的气体的作文是类似的。在在Wudalianchi的矿泉的逃离的气体和溶解气体的13C价值变化从?8.77到?4.53并且?8.24到?5.26当18O价值变化从时?10.68到?7.65并且?10.30到?8.84，分别地在弹簧显示逃离的气体和溶解气体的CO2的一样的上面的披风起源。碳和氧同位素分别和water-CO2交换在地下水流动的过程是弱的。4He内容超过5000

简介：LakesinTibetPlateauwithlittleeffectsofhumanactivitiesserveasimportantindicatorsofclimatechange.ThisstudyanalysedremotesensingdataandlongtermclimatevariablestoexaminethehydrologicalresponseoflakesinNamCoBasin.TheareachangesoflakeswereextractedbyLandsatTM/ETM+andanalysedbySRTM3DEM.AndtheICESatelevationdatabetween2003and2009wereusedtoobservethelakeleveloftheNamCoLake.Theresultsshowthatthenumberofnewformedglacierlakesincreasedby36%andtheareaofglacierlakesincreasedby36.7%(0.97km~2)from1991to2011.Atthesametime,thesurfaceareaoftheNamCoLakeexpandedby3.71%(72.64km~2)oftheoriginalsizein1991,withatendencyvalueof3.63km~2peryear.ThelakeleveloftheNamCoLakeshowsanincreasetendencyof0.24mperyearduring2003–2009.Thesevariationsappeartoberelatedtoanincreaseinmeanannualtemperatureof0.06oCperyear,andanincreaseinannualprecipitationof2.1mmperyearinsummerinthelasttwodecades.Theincreasednumberoflakesandincreasedareaofglaciallakesreachedapeakatanaltitudeof5500–5600ma.s.l..Thenumberofnewformedglacierlakesandtheareaofglacierlakestendtohigheraltitudes.ClimatechangehasanimportantimpactonthevariationoftheglacierlakesandtheNamCoLake.

简介：Accordingtotheplancofthcproject,studyonthcptogressivecvolution,geothermalcnergycoaccrvation-diffusionandcrust-mantlemetallogenesisinthemiddlepartofEastAsiancrustobodysupportedbyNNPC,andInvitedbyAcadcmiamemberprof.ChenGuoda,theMongolianScicntist,MongolianTcchinica1Univcrsityprof.o.GerclandtheRussianS

简介：Sincethefirstdiscoveryoftheexcellentperformanceofnickel-bearingironalloysin1889,scientistshavedeveloped3000morekindsofnickelalloys,whichstillhaveanenormousmarketdemandatpresent.However,thescarcityofglobalnickeloreresourceshasrestrictedeconomicdevelopment.Inrecentyears,expertsfromtheInstituteofMultipurposeUtilizationofMineralResourceshavestudiedthecomprehensiveutilizationtechniqueoflow-gradenickeloresfrom

简介：EO-1Hyperion高光谱遥感影像在实际应用中，需对图像进行大气纠正及补偿等预处理，以便获得较好质量的图像。为进一步分析和应用提供保障．笔者运用FLAASH大气校正模型对中国云南香格里拉地区的Hyperion卫星影像进行大气校正，利用图像MNF转换法对光谱曲线进行去噪平滑优化，再对校正前后影像进行遥感影像和典型地物光谱曲线对比分析．结果表明，影像经FLAASH大气校正和MNF平滑后，较好地消除了大气影响和Hyperion高光谱遥感图像的光谱噪声．

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简介：严肃恢复和气候实验(优雅)观察被用来检测co地震并且seismic以后严肃地变化由于Mw=9.3苏门答腊安达曼群岛地震，那发生在2004年12月26日。这篇文章集中于调查这巨大的地震引起的一些重力的效果。我们用GRACELevel-2每月球形的泛音计算了大地水准面高度变化，相等的水高度(EWH)变化，和严肃变化(嘘)得克萨斯的大学释放的答案集中研究(UTCSR)空格。优雅结果由一个脱臼模型与预言同意很好并且与结果由一些以前的学者获得了一致。特别地，我们计算了严肃坡度变化的三个部件并且发现他们能由于信号的扩大的某个度更易感知地恢复地震相关的签名。一个positive-negative-positive模式在严肃坡度变化的水平部件的空间分发支配，它可能在蘸滑倒地震的uplift-subduction效果引起的外壳的密度分发被归因于异例。而且，重力坡度变化的纬度部件显示出纵贯的条纹的强壮的抑制，它由于二颗优雅卫星的沿着轨道大小。我们断定在纬度严肃坡度变化的positive-negative-positive模式将是一个更敏感的特征由优雅数据检测一些主要蘸滑倒地震的变丑。

简介：ThemetasedimentsintheChambaregionexperiencedthreephasesofdeformation:DF1,DF2andDF3.Foldedquartzveinsareco-foldedwiththeF2crenulationfolds.Theirgeometricandtectonicsignificanceisstudiedbymicrostructuresandshorteningadjacenttothediscretecrenulationcleavage,S2.Microstructuresoffoldedveinsegments,theirgeometricchangesandtruncationtocleavage(S2)aremainlyduetopressure-solutionphenomenaandtheestimatedvolumelossfromreconstructedveinsegmentsrangefrom16to25.5%,whichiscloselyrelatedtovolumedecrease(26%)calculatedfromthepolydeformedslatesofNorthWalesareas.

简介：分析了1986-1998年成都地区大气降水的稳定同位素组成。夏季降水的δD和δ^18O值比冬季降水轻，反映了季风气候的降水特点。成都地区的大气降水线方程是：δD=1．42＋7．530δ^18O，与全球和中国降水线方程相比，表明了成都地区的蒸发程度稍大于降雨，说明成都地区大气降水的不平衡蒸发程度弱，反映了海洋性气候特征。成都地区大气降水δ^18O与降雨量、温度和水汽压之间都是负相关关系。但是降雨量对大气降水δ^18O的影响最大。

简介：<正>1IntroductionTheundergroundbrineresourcesdistributingwidelyinSichuanBasin,Chinahavedrawnworldwideattentionduetotheirunusualelementabundanceandexcellentquality.

简介：The2ndMid-EuropeanClayConference(MECC'04)washeldbetween20-24thSeptember2004,inMiskolc,Hungary.Theideatoholdcommonconferenceswasacceptedbythenationalclaygroupsoffourneighbouringcountries,Poland,Slovakia,HungaryandCroatia,duringtheEUROCLAYMeetinginCracow,Poland,in1999.Thefirstconferencewasheldin2001atStaráLesná,intheHighTatraMts.inSlovakia.

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简介：SongkeWellNo.2,oneofthemainpartofthescientificdrillingprojectinSongliaoBasin,whichwasdrilled7018mandacquiredthepartofcorescontinuouslyfromtheLowCretaceoustotheCarboniferousandthePermianfromthe2843mdeep,canbeconsideredasthedeepestcontinentaldrillingprojectinAsia.Aimingatthefeaturesoflongerwellsections,largerdiametersandmultiplespud-insforcoringofSongkeWellNo.2,thisprojectbrokethroughthe"coringinsmalldiameterandreaminginlargediameter"spud-indrilling-completionprocedureswhicharealwaysusedinlarge-diameter-wellcoringforcontinentalscientificdrillingprojectsindomesticandoverseasandthedrillingmethodofshort-singlecylinderroundtripfootage.Atthesametime,"coringinthesamediameterandcompletingdrillingatonesinglediameter"wasachievedatallφ311mmandφ216mmcoringsectionsofmorethanonethousandmeterslong,high-efficientoperationwith"drillinglongfootagewithdrilltoolscombinedinmulticylinders"wasachievedatdeepcoringsection.Fourworlddrillingrecordswerecreatedwhichincludemorethanathousandmeterscontinuouscoringatφ311mm,andthefootageperroundtripfootageatφ311mm,φ216mmandφ152mmisallmorethan30m,allofthesebreakthroughsreducedatleast300daysforthisproject;moreover,consideringthecharacteristicsofformationsthatthegeothermalgradientishighinthedrilledsectionsandtheinside-welltemperatureisover240℃afterdrillingcompletion,aformate-polymerwater-basedmudsystemwasdevelopedbycompoundingattapulgiteandsodiumbentoniteandbyaddingindependentlydevelopedhigh-temperaturestabilizer,whichcanprovidecriticaltechnicalsupportforsuccessfulwellcompletionat7018minthesuper-high-temperatureenvironmentItisthefirsttimethatthewater-basedmudisoperatedattheworkingtemperaturehigherthan240℃inChina;Besides,consideringthehigh-qualityrequirementoncoresimposedbytheproject,themethod"mechanicalcor

简介：特级的石墨粉末被在行星的球milling系统包含无水的CuCI2的球工厂exfoliated石墨准备。Nano规模CuCl2石墨置闰混合物被加热无水的CuCl2和石墨nanosheets的混合物综合。扫描电子显微镜学，精力散的X光检查光谱学和高分辨率的传播电子显微镜学被执行描绘stage-1nano规模CuCI2石墨置闰混合物的微观结构。在nano规模CuCl2石墨置闰混合物的领域墙和核心的结构和部件被描述。结果证明在混合的CuCl2的内容在nano规模CuCl2石墨置闰混合物的尺寸起一个关键作用。

简介：Naturalgascontaininghydrogensulphide(H2S)hasbeenfoundinseveralpetroliferousbasinsinChina,suchastheSichuanBasin,BohaiBayBasin,OrdosBasin,TarimBasin,etc.NaturalgaswithhigherH2Scontents(H2S＞5%mol.)ismostlydistributedinboththegasreservoirsofDukouhe,Luojiazhai,PuguangandTieshanpo,whichbelongtotheTriassicFeixianguanFormationinthenortheasternSichuanBasinandthoseoftheKongdian-ShahejieformationsinthenortheasternJinxianSagoftheJizhongDepression,BohaiBayBasin.IntheSichuanBasin,theH2Scontentsofnaturalgasaverageover9%andsomecanbe17%,whilethoseoftheBohaiBayBasinrangefrom40%to92%,beingthenoneofthegasreservoirswiththehighestH2Scontentsintheworld.Basedondetailedobservationandsampleanalysisresultsofatotal5000mofcorefromover70wellsintheabove-mentionedtwobasins,especiallysulfurisotopicanalysisofgypsum,brimstone,pyriteandnaturalgas,alsowithintegratedstudyofthegeochemicalcharacteristicsofhydrocarbons,itisthoughtthatthenaturalgaswithhighH2Scontentsresultedfromthermochemicalsulfatereduction(TSR)reactions.Amongthem,thenaturalgasintheFeixianguanFormationresultedfromTSRreactionsparticipatedbyhydrocarbongas,whilethatintheZhaolanzhuangoftheJinxianSagbeingtheproductofTSRparticipatedbycrudeoil.DuringtheconsumptionprocessofhydrocarbonsduetoTSR,theheavyhydrocarbonswereapttoreactwithsulfate,whichaccordinglyresultedinthedrycoefficientofnaturalgasincreasingandthecarbonisotopesbecomingheavier.

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简介：本报讯北京市地下空间与可持续发展论坛日前在北京地质大厦召开。论坛旨在强调＂城镇化建设,地质工作要先行＂,让地质工作全方位、立体化地对接生态文明建设,服务美丽北京世界城市建设。随着北京城市规模的不断扩大,土地资源日益稀缺,向地下拓展发展空间成为必然之路。地下空间资源的开发利用活动是在地质体中进行的,因此地质体的性质对地下空间资源开发利用具有制约作用。

简介：目前国内不生产专用砂钻机，通过对G-2型工程钻机进行适当改造，加大柴油机的功率，加装副卷扬．去掉动力头，设计加工专用的套管夹持器和组合吊锤，实现了机械拧卸套管，大大减轻了劳动强度，提高了该型设备对藏北高原恶劣自然条件的适应能力。