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了地幔
    (5)The seismic tomography data show that there are layer convective cells in somewhere ofthe mantle. It infers the complexity and diversification of the structure of the mantle convection.
    (5)地幔局部地区层状相互耦合的对流结构在地震层析剖面上有明显的显示,它表明了地幔对流结构的复杂性,仅管我们对此相知甚少,但它或许是无法避免的;
    The patterns of the mantle convection derived from Wagner's geoidal surface show that our continent is pressed in all directions.
    根据Wagner大地水准面资料得出了地幔对流模式,结果表明亚欧大陆正处在四面受压的力学对抗环境中。
    All these effects strengthen creep of the mantle and heat release toward the crust and result in platform activation.
    所有这些效应加剧了地幔的蠕动和向地壳的热量释放,并产生地台的活化。
    This paper uses mathematical methods to deal with the relative magnitude of both equations of partial fusion of equlibrium in the mantle and magmatic fractional crystallization as partition coefficient D_A varies,and distinguishes the two genetical models quantitatively.
    本文用数学方法讨论了地幔平衡部分熔融与岩浆分离结晶关系式随D_A变化的相对大小,进而对这两种成因作出判别。
    In termsof the above principle and the geochemical character of La, Ce,Sc,Yb durins mantle--magma processes, the paper also discusses the mantle components of primary masma of Emeishan Basalts and theirchanges, and calculates the mineral composition and the degree of the partial melting of the mantle.
    根据La,Ce和Sc,Yb在地幔-岩浆过程中地球化学特征,运用上述原理,讨论了峨眉山玄武岩系母岩浆的地幔成分及其变化,计算了地幔矿物相组成和部分熔融度。
    First, the higher creep strcngth of garnets determines the flow strength of the mantle transition zone;
    首先,石榴子石相矿物在很大程度上决定了那里的强度结构,并控制了地幔转换带的流变性。
    This paper gives a reviw on the major results from the recent research on the petrology and geochemistry of mantle rock in China, with key discusion on the important role of mantle fluid in the mantle process, especially on the ore-forming process of mantle fluid, the regional geochemical charecteristics of mantle beneath the continent in eastern part of China and its dynamic significance.
    本文概述了近年来我国在地幔岩石学和地球化学研究中取得的主要结果。 重点讨论了地幔流体在地幔过程中的重要作用,特别是地幔流体成矿作用,我国东部陆下地幔化学的区域性特征及其动力学意义。
    Based on a mathematical model of the mantle motion resulting from the joint action of a number of forces and factors, dynamic process of triggering velocity feeld in the mantle is analysed, and the relation of motion between the mantle and lithosphere is discussed.
    本文根据所建立的多种力源作用下地幔运动的数学模型,运用涡旋力学理论,分析了地幔速度场激发机制的动力过程,探讨了地幔和岩石圈运动间的相互关系。
    Basalts from several sections of the Lancangiiang and Jinshajiang suture zones close to mantle plumes supposed by Hou et al (1996) have been investigated to understand the influence of the mantle plume on the geochemistry of MORBs and on the evolution of the Paleo-Tethyan lithosphere in Sanjiang, China.
    本文通过研究三江地区金沙江和澜沧江缝合带MORBs的时空分布配置、岩石组合类型、岩石地球化学及区域地化异常,揭示了地幔热柱对古特提斯岩石圈内MORBs源岩及MORBs的化学成分影响,讨论了地幔热柱对古特提斯洋开启的驱动机制及对岩石圈演化的制约作用。
    According to some research results of mantle fluid,the probable metallogenic modes and mechanisms of mantle fluid are introduced,and the genetic relationship between the mantle fluid and the large superlarge mineral deposits is explained by some examples.
    根据目前地幔流体研究的某些成果,介绍了地幔流体可能参与成矿的方式和成矿机制,并举例说明地幔流体与超大型、大型矿床之间的成因联系
    This paper discusses the four types of theory of photon thermal conductivity in the minerals of the mantle by using the nonequilibrium quantum statistical method,and the formulas of the photon thermal conductivity is obtained. It also points out that the photon conductivity would not be a major mechanism of heat transfer in the lower part of the upper mantle and the transition zone,if radiation of coherent structure had not existed.
    本文采用非平衡量子统计方法,讨论了地幔矿物光子热传输的四种不同情况,并得到了光子热导率的计算公式.若地幔中不存在相干结构的辐射热传输时,在上地幔下部和过渡带,光子的热导将不是热传递的主要机制.
    Based on the thermodynamic models of the mantle, the thermodynamic unstability conditions and critical conditions of the mantle under the influence of numerous factors are analysed. Results show, among the factors influencing the mantle's motion, thermal effect in the mantle such as radiogenic heat, factes-change heat and adiabatic heat may increase the force driving the mantle, whereas rotation effect of the earth may decrease the critical resistance.
    根据地幔热动力学模型,分析了地幔在多种因素(特别是地球自转效应)影响下的热力不稳定性条件和临界条件,结果表明,地质年代在影响地幔热力不稳定性的诸因素中,地幔内部的热源(放射性生热、相变生热、绝热压缩生热和底部加热)效应能够使地幔lavleish数增大,即增大地幔运动的动力;
    In the paper, under the theoretical guiding of the hypothesis of mantle creep, convergence and divergence of heat energy, dynamic mechanism of mantle creep is expounded,and based on synthetic analysis of many factors affecting mantle creep, according to basictheory of the viscosity hydromechanics and plastic mechanics, mathematical model of the motion of the mantle is proposed. Numerical method for computing mathematical model is discussed.
    以地幔蠕动、热能聚散假说为指导,阐述了地幔蠕动的动力机制,并在综合分析多种影响地幔蠕动动力因素的基础上,依据牛顿粘滞性流体力学和塑性力学的基本原理,建立了地幔蠕动的数学模型,讨论了数学模型的数值方法。
    It is concluded that the rhythmicity of basin evolution is attributed to the mantle convection.
    认为盆地演化的阶段性间接反映了地幔对流的阶段性。
    Finally, taking China as an example, we study the behavior of mantal pillar tectonics in the mantle.
    以中国为例,研究了幔柱构造特征,提出了地幔热柱构造的动力学模型。
    The basalt eruption suggests that the fault zone reached deeply into the upper mantle and caused the mantle shear zone,and shows important deep process information such as mantle metasomatism and mixed mantle regions.
    该玄武岩喷发不但反映了断裂带已深切至上地幔 ,出现了地幔剪切带 ,也显示地幔交代、混杂地幔区等重要的深部过程信息。
    The discovery reveals a new site for the mantle derived water.
    这一发现 ,揭示了地幔水可以以流体包裹体的形式赋存在火山岩的矿物斑晶中
    After talked about the mantle plume,the article concluded that the mantle plume in southeastern China is not only the heat for acidic volcanic rock,but also the source for mineralizer agent(CO2). The plume corresponds to the Pacific-Eurasia plate collision,joined the mantle-metasomatism and thinning of the lithosphere too.
    在初步介绍了地幔柱的研究现状之后,认为中国东南地幔热柱不仅是中酸性火山岩形成的热动力,而且也是成矿矿化剂( CO2)的重要来源,它与太平洋─亚欧板块碰撞是统一的,同时参与了地幔交代和岩石圈减薄。
    This work introduces main methods to study oxygen fugacity of the mantle, discusses temporal and spatial variations of oxygen fugacity of the mantle, and concludes that the Earth mantle becomes more and more oxidative with the mantle evolution, and more and more reductive with depth increasing.
    定性探讨了地幔氧逸度的时空分布规律 ,获得了地幔随时间的推移变得愈来愈氧化 ,随深度的增加变得愈来愈还原 ,以及在横向上不同大地构造部位的地幔区域具有不同的氧逸度等诸多结论。 结合目前人们对地幔物质组成、性质、状态、运动过程及地球的起源与演化历史等的认识 ,初步提出了地幔不同圈层氧逸度的约束机制。
    It suggests a liquid phase rich in chlorine, potassium, iron, nickel and sulphur exists in some areas of the mantle
    金刚石中这些包裹体的发现 ,指示了地幔中局部存在富钾、富氯和高铁镍硫的液相 (或熔体 )
 

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