学科分类
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19 个结果
  • 简介:Thisstudyshowscrossholeseismictechnologycanoffernotonlyimagesofcrossholetomography,butalsoreflectsectionsofhighresolution.Properprocessingofcrossholeseismicreflectdataproducesahighqualitysectionbetweentwowells.Thinbeds,faultsandothergeologicphenomenacanbefoundclearlyinthissection.Sodetailedreservoirdescriptioncouldbeformedtoguidetheoilfielddevelopmentplan.Meanwhile,crossholetechnologycanbedirectlyusedtomonitortheprocessofoilfieldinjectionandenhancedoilrecovery,soithasawidescopeofusageinoilfielddevelopment.

  • 标签: CROSSHOLE THIN BED RESERVOIR DESCRIPTION development
  • 简介:Thispaperdiscussessomemechanicalconceptsthathavebeenlargelyappliedtostructuralgeologyandtectonics,andaddressestheproblemsandmisunderstandingsinuseofthesemechanicalterms.Thepurposeistostimulatetheinterestsforstructuralgeologistsinusingthemechanicalprinciplesandmethodscorrectlytosolvethegeodynamicproblems.

  • 标签: 结构地质学 静力学方法 运动学方法 动力学方法 位移 应力
  • 简介:Paleocontinentalreconstructionisofthenatureofmultidisciplinaryanalysis.Thispaperdiscussesthesignificanceofsomemoreimportantdisciplines,includingpaleomagnetism,paleoclimatologyandpaleobiogeography.Topattentionshouldbepaidtothesyntheticanalysisandgeologicalexplanationofgeophysicaldata.Reassemblingofthepaleocontinentsbygeometricsimilaritiesispreliminary,geologicalconsiderationsshouldreceivemoreattention.SeveralrulesconstrainingthereconstructionareproposedandEulerpolesusedtoreassemblesomeseparatedPrecambrianmedianmassifstotheirmothercontin-entsaregiven.Acomputersoftwareforpaleocontinentalreconstruction,GUDALU,isintroduced.Thesoftwareisflexibleinthatitgivestheusermaximumfreedomtodemonstratehisorhergeologicalopin-ionsbyprovidingmeansoforganizinggeographicdataandrotationalparameters,manykindsofmappro-jectionofdifferentfeaturesanddynamiceditingofthereconstructionmaps.Finally,anexampleofMesoproterozo

  • 标签: paleocontinental RECONSTRUCTION plate FIT . SYNTHETIC
  • 简介:X-raydiffraction(XRD)peaksinalow-anglediffractionsectionofclayminerals,especiallythoseofauthigenicorigin,havebroadeningandtailingfeaturesinshape.Usingthefivebasicparameters,peakposition,peakheight,width,shapecoefficientandasymmetry,todescribeanXRDpeakismoreaccurate,comprehensiveandintegratedthanusingonly3ofthem,position,heightandwidth.FollowingtheconceptofthefivebasicparametersofanXRDpeak,theprogramDecoformproposedinthisstudyprovidesmoreinformationinmineralogicalanalysesbyfittingactualXRDprofiles.IncombinationwiththeHW-IRplot,Decoformcanbesystematicallyandaccuratelyusedinthecomprehensiveanalysesofcrystallinity,domainsize,latticestrainandquantitativephase.Itisalsoofvalueforthegeologicalinvestigationsofdiagenesis,metamorphism,basinmaturity,structuralstressfieldandsoon.

  • 标签: clay minerals X-ray DIFFRACTION analysis XRD
  • 简介:Themultivariatestatisticalanalysisisprofitablyapplicabletothestudyofconodontmultielementtaxonomy.R-modeclusteranalysesofquantitativeand0-1dataarecarriedoutheretoclassifymorethan6000discreteLowerTriassicconodontspecimensbelongingto108kindsofconodontelementsfromWesternGuangxi.TheresultsofR—modeclusteranalysisrevealmoredirectlytherelationshipamongmanyisolatedconodontelements,andtheyalsoprovethatthere-sultsofthelogicalinferencearebasicallycorrect,i.e.108kindsofconodontelementscanbeidenti-fiedinto32speciesbelongingto11generaofconodonts.TheapplicationofR-modeclusteranalysismultielementtaxonomybythemethod,hasbroughtabout4significantconclusions,whichcanbeusedbyconodontresearchersasreference.

  • 标签: CONODONT multielement TAXONOMY R mode DUSTER
  • 简介:Common-reflection-point(CRP)集合是连接地震数据和petrophysical参数的一座桥。预先叠属性抽取并且预先叠倒置,他们俩是水库预言的重要工具。CRP集合的质量通常在地震探索的精确性上有大影响。因此,预先叠CRP集合噪音抑制技术成为一个主要研究方向。基于向量分解原则,这里,我们建议一个方法压制噪音。这个方法由在各种各样的方向寻找估计最佳的单位向量然后通过向量角度变光滑和限制压制噪音。模型测试显示建议方法能把有效信号与噪音分开很好并且在单个wavenumber大小写中有效地压制随机的噪音。我们到真实数据的方法的申请证明方法能恢复有效信号,好振幅保存了从预先叠甚至在到噪音比率(SNR)的低信号的情况中的吵闹的地震数据。

  • 标签: 叠前地震资料 提取技术 真振幅 应用 C反应蛋白 噪声抑制
  • 简介:ThreelogarithmiclinearequationsbetweenDMeV/Land[mNaCl],andtherelationshipofDMeV/LversusF/ClorK/NamoleratioshavebeenestablishedbytheexperimentsofthepartitioningofPbandZnbetweengraniticsilicatemeltandaqueousfluid.Theseresultshavebeenusedtoquantitativelystudysomeessentialproblems,suchasthepossibilityanddegreeofPb-Znmineralizationinthesystemofgraniticmagmaandhydrothermalfluid,andtheinfluenceoftherelativecontentsofalkaliandvolatilesonthePb-Znmineralizationinthesamesystem.Somenewpointshavebeenputforwardinthispaper.

  • 标签: hydrothermal quantitatively SILICATE partitioning POSSIBILITY MAGMA
  • 简介:ThispaperdiscussestheRb-Srgeochemicalbehaviourofillitesinthesedimentaryprocess,andpointsoutthatillitesofthelmdandlmtypescouldreachSr-isotopicequilibriumwithitsenvironmentalmediumduringthesedimentaryprocessandinitialstageofdiagenesis,andillitegrainsofdifferentsizeshavevariousRbcontents.Anewdatingmethodforsedimentaryrocks----adatingmodelofillitegrainRb-Srisochron----isestablished,inconsiderationofthegeochemicalprocessofSr-isotopichomogenizationanddifferentiationinthecourseoftheirformationandevolution.Inaddition,thepaperconcernstheapplicationofthedatingmodeltothePrecambrianunmetamorphosedsedimentaryrocksinwesternHenanProvince,whichgivessatisfactoryresultscoincidentwiththegeologicalfacts.

  • 标签: sedimentary DATING homogenization geochemical isotopic shale
  • 简介:LithosphericStretching,SubsidenceandThermalHistoryModeling:ApplicationtoYinggehai,QiongdongnanandSongliaoBasinsinEastChina*Li...

  • 标签: SUBSIDENCE STRETCHING Mesozoic RIFT basin EAST
  • 简介:井撤退的水的数量是能被使用估计地下水资源并且进一步在地下水系统上评估人的影响的量的变量之一。为水退却的数量的计算的精确性显著地影响地区性的地下水资源评估和管理。然而,抽的分散的地下水,低效的管理,测量错误和无常在地下水退却评价导致了可观的错误。在这研究,改进地下水退却的评价,一条创新途径基于地区性的地下水流动用一个倒置方法被建议数字模型,和这个方法然后在诺思中国平原被使用。方法的原则与观察正在匹配模仿的水层次由调整地下水退却的数量的。另外,水力的电导率的无常分析和为地下水退却的评价的特定的产量被进行。由使用建议倒置方法,估计的年度平均地下水退却是近似第二设置了的24.92m(中等分子的重量,60%PS内容)显示出最好的力量表演(90mW/cm<啜class=“a-plus-plus”>在70点的2吗??

  • 标签: 地下水流模拟 中国北方 估计 抽取 应用 平原
  • 简介:BasedonthenaturalandsocialconditionsaswellashydrogeologicalcharacteristicsoftheRyukyulimestone,amajoraquiferintheRyukyuIslands,aconceptionofundergrounddam,wasproposedintheearly1970sinordertodevelopgroundwaterresourcesintheQuatemaryRyukyulimestoneregionsofJapan.Thepracticeofnearlythirtyyearshasshownthattheundergrounddamisanenvironment-friendlyandeffectivewayfordevelopinggroundwaterintheseregions.``Tofurtherimprovethetechnologyassociatedwithundergrounddam,theauthorsintroducedrelatedanalyticmethods.Theapplicationofthegeographicalinformationsystemtechnologytositeselectionoftheundergrounddamisreportedinthispaper.``

  • 标签:
  • 简介:作为为词法分析的一个更有效的量的方法,几何morphometrics从NeoproterozoicEdiacaranLantian生物区系包括Flabellophytonlantianensis和Flabellophytonstrigata被用于扇形的石块Flabellophyton,华南。两传统的morphometric分析(包括的分叉的角度,长度,和宽度分发)和几何morphometric分析[包括规范的区域分析的重叠,非公制的多维的可伸缩(n-MDS),Bray-Curtis类似簇分析(簇)和类似(ANOSIM)的分析]被执行。结果显示F之间有大种间的词法差别。lantianensis和F。strigata,除了在每种以内的一些intraspecific变化。这里,我们preliminarily建议以前定义的Flabellophyton应该至少被细分进2个类:没有,一个人由黑暗横向的有条纹的结构,和其它标记。这个描述和重新分类工作仍然与联合形态学,结构,人口,和社区生态学学习的扇形的石块的大数字需要进一步小心的观察和全面分析。

  • 标签: 定量分析方法 形态测量 几何形态 中国南方 生物群 蓝田
  • 简介:Systematicexperimentalstudiesonpartialmeltingandsubsolidusequilibrationofthreereconstitutedspinel-peridotiteshavebeencarriedoutattemperaturesrangingfrom1000to1380℃andpressuresof1.0and1.5GPa.Theresultsshows(1)duringpartialmelting,Mg#[=Mg/(Mg+Fe)]andCr#[=Cr/(Cr-Al)]ofspinelincreasewithanincreaseindegreesofmelting)(2)duringsubsolidusequilibration,withincreasingtemperatures,Mg#ofspinelincreasesbutCr#ofspinelremainsalmostunchangedinduniteandincreasesslightlyinIherzoliteandharzburgite.Thenegativeandquasi-linearMg#-Cr#correlationofspinelrepresentsanisothermoftotalnon-equilibrium.Thesameresultshavebeenobtainedbymeansofmathematicalmodelling.ItisalsoprovedbyMg#-Cr#correlationofspinelinnaturalperidotites.Asaresultofthespinelsubsolidusequilibration,onlyvariationofCr#ofspinelislimited,andthenCr#ofspinelcanbeusedtoestimatetherelativedegreeofmeltingundergonebyhostrocks

  • 标签: PERIDOTITE SPINEL PARTIAL melfing subsolidus EQUILIBRATION
  • 简介:洪水波浪繁殖建模具有到预付水资源管理并且保护人的生活和性质的批评重要性。在这研究,我们调查了移流散开路由模型怎么在16km上在洪水波浪繁殖表演了大Piney河的长下游的节,瞬间。模型性能在在上游、下游的生气的节基于作呕的车站数据。我们与移流散开理论证明为在在二河十字节之间的分水岭排水区域的小差别,沿着活动范围的流入主要贡献升起的下游的自记水位计手足并且不掉落的手足。掉落的手足主要是的下游的自记水位计由在在上游的生气的节发源的宣传洪水波浪决定了。这研究建议为advectiondiffusion路由模型的参数能被适合掉落的自记水位计校准手足。到2013年1月29日的洪水波浪的移流散开模型的申请支持我们的理论发现宣传洪水波浪决定掉落的下游地生气的节手足,和模型在我们的测试例子有好性能。

  • 标签: 对流扩散模型 波传播模型 路由模型 洪水波 松树 应用
  • 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.

  • 标签: 矿物包裹体 二氧化碳 石英毛细管 拉曼分析 合成技术 碳密度
  • 简介:Mineralisationistheresultofthecoupledmulti-geodynamicprocessesinthecrust.Thecoupledmechano-thermo-hydrological(MTH)processesarethebasicphysicalprocessesthatgovernthelocationofthehydrothermalmineralization,whichcanbesimulatedinthecomputerbyusingofthenumericalcodes,suchasFLAC.Thenumericalmodelingresultscanbeusednotonlytoexplainthefeaturesofexistingoredeposits,butalsotopredictthefavorablemineralizationlocations.ThispaperhassummarizedthebasicequationsdescribingcoupledMHTprocessesinthewater-saturatedporousrocks,theprinciplesofFLAC,anditsapplicationtotheMHTprocessesrelatedtocoppermineralizationintheFenghuangshanorefield.WeusedtheFLACtosimulatethesyn-deformationcoolingandfluidflowingevolutionaftertheintrusionwasemplacedandsolidified.Themodelingresultssuggestamostprospectiveexplorationareawherethesubsequentexplorationsupportedthepredictionandthetestboreholedisclosedthehighqualitycopperorebodiesinthetarget,demonstratingapositiveroleofthenumericalMTHmodelinginfacilitatingpredictiveorediscovery.

  • 标签: 水文耦合 地球动力学 数值模型 矿化作用 凤凰山
  • 简介:在这份报纸,在稀土元素元素(REE)之间的关系geochemical行为和他们的离子的半径被学习。根据在REE出现的子类型的lanthanides,五种类型和一些的地球化学上称为效果的基本法律,两个在magmatic岩石和他们的矿物质中,被发现岩石,它可以对应于magmatic的进化方法。为在东方Xinjiang的天河石黄玉花岗石pluton的REE数据的分析,韦斯特中国,和在Bohai海湾盆的Xialiaohe消沉的新生代碱的暴烈恼人的岩石的行政区域之一,打II1的中国表演,lanthanides的地球化学上的效果的III和IV不仅反映液体complexation和部分结晶化直接在magmatic进化存在,而且能决定半份量上液体的力量complexation和部分crystalli因此,lanthanides的地球化学上的效果,学习magmatic的半份量上进化的一个新方法摇,可能是适用的。而且,从Gonghe盆的边缘的不同来源的mafic熔岩,Qinghai省,中国,能有效地在能与LREE和它的离子半径的线性方程的一些参数被拉的图被区分。

  • 标签: 地球化学效应 半定量测定 镧系元素 岩浆流体 岩浆岩 分步结晶