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the deep mantle
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  深部地幔
     The constituents of deep mantle fluid revealed by fluid inclusions in diamonds are 16.87%, 47.47%, 30.90%, 3.02% and 5.38% of C, H, O, S, N, respectively, which is richer in H and poorer in O compared with atmosphere and hydrosphere. The deep mantle fluids are one of the sources of fluids participating in the shallow geological processes, and are of close relationship with earth evolution.
     华北地台由金刚石流体包裹体所反映的深部地幔组成C、H、O、S和N分别为16.87%、47.47%、30.90%、3.02%和5.38%(皆为原子百分比),与现代大气圈、水圈相比明显富H贫O。
短句来源
     Mesozoic basalts from East China were analyzed by ICP-MS to reveal the geochemical response of the deep mantle to the Mesozoic lithospheric thinning.
     为揭示中国东部中生代大规模岩石圈减薄作用的深部地幔地球化学响应,对华北东部5个地区的中生代玄武岩进行了ICP-MS分析。
短句来源
     It seems that the lithospheric thinning of eastern China is not the result of the influence of the deep mantle plume or continental extension.
     看来,中国东部岩石圈变薄并不是深部地幔羽或大陆伸展作用的结果。
短句来源
     the result from the analysis of frace elements suggest that the rock bodies originate from the deep mantle having relatively weak diffrentiation.
     同时,微量元素分析表明,该类岩体均起源于分异作用相对较小的深部地幔
短句来源
     The formation of these basins is directly connected with the motion of the Pacific and Eurasian plates and is restricted by the movement of the material in the deep mantle.
     它们的形成与太平洋板块和欧亚板块的运动密切相关,并且受着深部地幔物质运移的制约。
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  “the deep mantle”译为未确定词的双语例句
     The continental lithosphere was subjected to further alteration by the SiO 2-poor melts from the deep mantle.
     大陆岩石圈地幔经历了来自地幔深处的贫SiO2 熔体的进一步改造。
短句来源
     Mixing of water with the reducing CH4-rich C-H fluids played an important role in the melting of the deep mantle, thereby resulting in the production of widespread post-collisional mafic-ultramafic complexes and the related Cu-Ni sulfide ore deposits.
     富CH4还原性C-H流体和富H2O流体,为地幔深处的熔融发挥了重要作用,进而产生了新疆北部造山后广泛分布的镁铁-超镁铁岩浆以及铜镍硫化物矿床。
短句来源
     The processes of metasomatism varied from liquid metasomatism in the deep mantle (>90km) to siliceous melt metasomatism.
     交代营力可能源于地幔热缕的上升,交代过程推测为深处小范围的流体交代及随后硅酸岩熔体的“弥散”性交代
短句来源
     This paper presents the information about 13 gold deposits and concludes that the gold element came from the deep mantle.
     总结 13个金矿床 (点 )的各种资料 ,认为该区金矿的矿质应来自深源流体。
短句来源
     During Archaean asthenosphere-lithosphere interaction and post-Archaean interactionwith the deep mantle and other hot spots The Archaean lithospheric mantle beneath SouthAfrica experienced processes of crustal extraction.
     太古代岩石圈地幔以南非为代表,经历了从地壳物质提取的亏损过程到与软流圈反应和与深部热点物质作用的富集过程。
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  相似匹配句对
     On Deep Ecology
     深层生态学初析
短句来源
     the hypocenter is deep;
     震源较深;
短句来源
     Deep Autumn
     秋深
短句来源
     the tragedy has deep implication.
     悲剧意蕴,警示千古。
短句来源
     DEEP MANTLE AND ITS FLUIDS
     深部地幔及深部流体
短句来源
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  the deep mantle
-Resolving the lateral variations of attenuation in the deep mantle by tomographic methods holds potential for constraining its thermal structure and dynamics.
      
-An attempt is made to explore the geodynamical significance of seismic anisotropy in the deep mantle on the basis of mineral physics.
      
Seismic Anisotropy in the Deep Mantle, Boundary Layers and the Geometry of Mantle Convection
      
A Stabilizing Dynamical Influence in the Deep Mantle due to the Radiative Thermal Conductivity and a high temperature at the Cor
      
In contrast, these hybrid rocks are unlikely to undergo significant decarbonation during subduction and so may be important for recycling carbon into the deep mantle.
      
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Based on the crust and upper mantle structures on both sides of the Tancheng-Lu-jiang Fault System in the epicontinental region of Eastern China, as well as on the characteristics of the geophysical fields there, we discuss, in this paper, the relation between these characteristics and the distribution of a series of rift valley oil- and gas- bearing basins, as well as the sedimentation and evolution of these basins.The conclusions are that, all these basins are distributed in uplifted regions of the upper mantle...

Based on the crust and upper mantle structures on both sides of the Tancheng-Lu-jiang Fault System in the epicontinental region of Eastern China, as well as on the characteristics of the geophysical fields there, we discuss, in this paper, the relation between these characteristics and the distribution of a series of rift valley oil- and gas- bearing basins, as well as the sedimentation and evolution of these basins.The conclusions are that, all these basins are distributed in uplifted regions of the upper mantle and that there exist anomalies of geophysical fields as well as anomalistic crust and upper mantle structures. In these basins, there are Meso-Cenozoic thick sediments, with favourable conditions for the formation and accumulation of petroleum. The formation of these basins is directly connected with the motion of the Pacific and Eurasian plates and is restricted by the movement of the material in the deep mantle.

本文根据中国东部陆缘地区——郯庐断裂带两侧地壳与上地幔结构和综合地球物理场特征,阐述了其与一串含油气裂谷型盆地的分布规律,并讨论了其沉积和演化。 结果表明:这一系列含油气盆地,分布在上地幔顶部的隆起地区,均具有异常的地球物理场特征。这些盆地中有着巨厚的中、新生代的沉积,具备了良好的生油与储油条件。它们的形成与太平洋板块和欧亚板块的运动密切相关,并且受着深部地幔物质运移的制约。

The Cenozoic volcanics in the Leiqiong area, South China, are mainly tholeiites, giving eruption ages lower than 16Ma. Their petrochemistry is intermediate between MORB and OIB. Nd, Sr and Pb isotopic compositions are in the ranges 0 51274-0.51304, 0.7031-0.7040 and 18.14-18.69, respectively. The Nd-Sr-Pb isotopic correlations also show MOR3-OIB features, which represent the most depleted mantle region beneath the East China Continent. A few samp-les have higher 87Sr/86Sr ratios( > 0.7043), indicating the influence...

The Cenozoic volcanics in the Leiqiong area, South China, are mainly tholeiites, giving eruption ages lower than 16Ma. Their petrochemistry is intermediate between MORB and OIB. Nd, Sr and Pb isotopic compositions are in the ranges 0 51274-0.51304, 0.7031-0.7040 and 18.14-18.69, respectively. The Nd-Sr-Pb isotopic correlations also show MOR3-OIB features, which represent the most depleted mantle region beneath the East China Continent. A few samp-les have higher 87Sr/86Sr ratios( > 0.7043), indicating the influence of the ancient mantle source like the Shanshui Basin. The plot of 143Nd/144Nd v.s. 147Sm/144Nd revels a history of three-stage evolution: depletion in Precambrian (>570Ma), enrichment in Paleozoic (500-150Ma) and depletion again since Mesozoic. The Pb-Pb isochron yielded information on a mantle event of about 3.6 Ga. It is indicated from geochemical and geologic evidence that the volcanism in this area is associated with the junction between the tectonic lines of Sihui-Wuchuan and Jinsa-Red River, which serves as a channelway for magmas from the deep mantle.

雷琼火山岩喷发时代<16Ma,以拉斑玄武岩为主,同位素与岩石化学证据具MORB与OIB过渡特征,为中国大陆最亏损的地幔端元并受到三水盆地型古俯冲带地幔源的影响。~(143)Nd/~(144)Nd-~(147)Sm/~(144)Nd相关表明经历了前寒武纪亏损(>570Ma),古生代富集(500—150Ma)以及中生代亏损三个发展阶段。Pb-Pb等时线显示出近于3.6Ga地幔事件。地球化学与地质证据表明该区火山喷发可能与四会-吴川和红河-金沙江两条构造线的交汇形成深的地幔通道有关。

The geologic-geochemical model of the hypogenic gas formation suggested by some authors abroad is led to by the non homogeneity of the natural gas distribution in the crust, the affinity with petroleum and the evidence of the abyssal origin.Similarly, it is believed that the natural gas originates from the deep mantle.The generating source of oil and natural gas is located in the place with a quite active geochemical activity in terms of the point of geodynamics.There is an quite intense activity in this...

The geologic-geochemical model of the hypogenic gas formation suggested by some authors abroad is led to by the non homogeneity of the natural gas distribution in the crust, the affinity with petroleum and the evidence of the abyssal origin.Similarly, it is believed that the natural gas originates from the deep mantle.The generating source of oil and natural gas is located in the place with a quite active geochemical activity in terms of the point of geodynamics.There is an quite intense activity in this place, where the deep fracture to the surface is generating and developing. Oil and gas try to flow to the surface along the deep fracture and the oil and gas fields are formed under the convenient lithofacies and structure conditions.

本文从天然气在地壳上分布的不均衡性、与石油的亲缘关系及深源气存在的证据等引出国外一些学者提出的深源气形成的地质—地球化学模式。他们都认为天然气起源于深部地幔。根据实际资料及实验等方面的研究,一些学者认为石油烃不仅是独立的而且也是独特的天然化合物。天然气—石油与干酪根—煤是典型的天然对映体。这种观点与广为流传的煤成气观点迥然对立。说明石油烃天然化合物的成因问题没有得到最终解决,只有通过实践及实事求是的讨论才能得到统一认识。

 
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