大陆地壳
- 网络Continental crust
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大陆地壳最古老的部分有40亿年历史。
The most ancient parts of the continental crust are 4000 million years old .
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结果表明:此区是大陆地壳中一个十分突出的低Q值区域。
The result shows that this region is distinctly a low-Q region in the continental crust .
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GPS观测得到的中国大陆地壳垂直运动
Vertical crustal movement obtained from GPS observation in Chinas mainland
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中国大陆地壳现今运动的GPS测量结果与初步分析
GPS results of current crustal movement of China continent and primary analysis
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中国大陆地壳运动的GPS观测及相关动力学研究
GPS observations for crustal movements in China continent and related geodynamic studies
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利用GPS技术监测中国大陆地壳运动的初步结果
Preliminary Result of Monitoring Crustal Motion in China by GPS
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通过分析中国大陆地壳运动GPS速度场得到现今构造应变率场。
We obtain contemporary tectonic strain rates of Chinese continent from analyzing crustal motion inferred from GPS velocity field .
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蛇纹石化橄榄岩的Pb/Ce比值远高于岛弧玄武岩和大陆地壳。
Also Pb / Ce ratio is higher than island arc basalt and continental crust .
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兴蒙造山带正ε(Nd,t)值花岗岩的成因和大陆地壳生长
Genesis of positive ε( nd , t ) granitoids in the Da Hinggan mts. - mongolia orogenic belt and growth continental crust
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介绍利用中国地壳运动观测网络基本网、基准网1998年与2000年GPS观测结果所获得的中国大陆地壳水平运动信息。
The horizontal crustal movement obtained from GPS observations in 1998 and 2000 at basic and fiducial stations in the Crustal Movement Observation Network of China ( CMONOC ) is introduced .
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正εNd(t)值花岗质岩石的存在,可能对研究大陆地壳生长具有重要意义。
The existence of the granitoids with positive ε Nd ( t ) values may have great significance for the study of the growth of continental crust .
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大陆地壳风化物质以及地表径流的Sr同位素组成变化揭示了不同流域盆地的地质背景和风化作用的特征。
The isotopic composition of Sr in weathering products of the continental crust and surface runoff can reveal the geological background and weathering characteristics of different drainage basins .
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钻孔沉积物中元素的富集因子(EF)均小于10,接近于1,表明钻孔沉积物主要来自大陆地壳。
Rich factors of elements in the cores are less than 10 , and near 1 , so the sediments mainly come from continental crust .
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稀土元素的球粒陨石配分模式均呈现Eu负异常,模式具负斜率,表明表层沉积物物质主要来源于大陆地壳。
The chondrite-normalized REE patterns of were characterized by the negative Eu ( abnormally ) and the negative gradient , indicating that the main material sources of surface sediments are of matter from the mainland earth crust .
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文中简要介绍GPS数据处理的方法,给出数据处理的精度统计;以部分点的实测速度为基础,建立中国大陆地壳运动速度场;
In the paper , we introduce the method for processing GPS data , deriving site velocities from GPS data , establishing the crustal motion velocity field of the Chinese continent , and carrying out the network integrated adjustment employing a Kalman filter .
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铁锰结壳的铼-锇同位素组成明显有别于大陆地壳岩石,和K-T界线沉积物相似,接近陨石值。
The Re Os isotope composition is obviously different from the rocks of the continental crust , but similar to the K T boundary sediment , and close to the meteorite .
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本文主要通过Rayleigh面波衰减反演地壳上地幔S波品质因子Qβ,建立了中国大陆地壳上地幔S波品质因子全三维结构。探讨了中国大陆区域地球内部粘弹性结构。
By using the Attenuation property of the Rayleigh Surface Wave to invert the quality factor of crust and upper mantle , this paper yields the S-Wave quality factor 3D structure of Crust and Upper Mantle of China , and the viscidity structure of this area as well .
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构造环境判别为POG型花岗岩,是大陆地壳后造山阶段向板内阶段转换时期的物质反映。
Based on the tectonic setting discrimination , the rock is " POG type " granite , which was generated by the crust transforming from post orogenesis phase to intraplate phase .
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鉴于这些玄武岩具有类似OIB型的微量元素分布特征,要求加入到这些玄武岩地幔源区的富集组分是俯冲洋壳及其上覆沉积物,而不是具有弧型微量元素分布特征的正常大陆地壳。
Considering the OIB-like trace element distribution patterns for these basalts , the enriched components were introduced into their mantle source by subducting oceanic crust and its overlying sediments rather than the continental crust with arc-like trace element distribution patterns .
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这一模式也是大陆地壳快速生长加厚的一种有效机制。
It is perhaps an efficient mechanism of rapid crustal growth .
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对中国大陆地壳上部应力状态的讨论
Discussion on stress status in the upper crust , China Continent
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利用多种地震学参数研究中国大陆地壳应变场
Study on strain field of continental China using multiple seismological parameters
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研究大陆地壳的成分梯度与不连续性;
The composition , gradients and discontinuities of the continental crust ;
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中国大陆地壳运动的背景场
Background of Crustal Motion in Ch in ese ma in land
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1999~2001年中国大陆地壳水平运动
Horizontal crustal movement in Chinese mainland from 1999 to 2001
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中国大陆地壳的应变应力场研究
Study on crustal strain and stress fields in China Continent
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中国大陆地壳运动与强震关系研究
On crustal movement in China continent and its relationship with strong earthquakes
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国际上对大陆地壳第三构造单元的研究
International Studies of the third tectonic element of continental crust
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大陆地壳演化中岩浆作用的富碱趋势
Alkali-enrichment tendency of magmatism during evolution of the continental crust
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活动构造是现今大陆地壳变形的重要反映。
Active tectonics is the important manifestation of the present crustal deformation .