简介：<正>BrineresourceisrichinChina,butitsexploitationhasbeenaproblem.Hypersalinebrinewillcorrodeequipmentandmaterialsseriouslyduringthebrineexploitationandtransportation.Thecorrosionproblemcancausegreat

简介：1IntroductionDengfuxianorefieldliesattheintersectionoftheQin-HangCombinedZone(QCZ)andtheNanlingMetallogenic,andcomprisesXiangdongW-Sndeposit(AlsoknownasDengfuxianW-Sndeposit),Jiguanshi

简介：1.IntroductionInrecentyears,theproblemaboutthetectonic-meta1logcncsjshasbeennotieedbymanygeolo-gists’Aboutmoretbantcnyearsago,ProfessorCbcnGuodaproposcdtbcconeeptionoftectonic-met-allogenesis’AndProfessotHuangRuihua(1989,1990)paidgrcatattcntiontotheinitiativeofstructurcsactingonthemctallogencticproe

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

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简介：ＳＰＡＴＩＯ┐ＴＥＭＰＯＲＡＬＤＩＳＴＲＩＢＵＴＩＯＮＯＦＮｉＤＥＰＯＳＩＴＳＴｈｅＮｉｄｅｐｏｓｉｔｓｉｎＣｈｉｎａａｒｅｄｉｓｔｒｉｂｕｔｅｄｉｎＧａｎｓｕ（Ｊｉｎｃｈｕａｎ），Ｘｉｎｊｉａｎｇ（Ｋａｒａｔｕｎｇｇｕ，Ｈｕａｎｇｓｈａｎ），Ｊｉｌ...

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

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：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：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.

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