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tectonic area
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  “ tectonic area”译为未确定词的双语例句
     The Characteristics ofTectonic Area of Inner Mongolia
     内蒙古大地构造分区及其特征
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  相似匹配句对
     The Characteristics ofTectonic Area of Inner Mongolia
     内蒙古大地构造分区及其特征
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     TECTONIC EVOLUTION AND METALLIZATION OF THE ERGUNA OROGENIC BELT
     额尔古纳造山带构造演化与成矿作用
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     THE PALEOZOIC TECTONIC GEOGRAPHICALPATTERN OF NORTHEAST CHINA
     中国东北区古生代构造古地理格局
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     Criticize and Tectonic
     批判与建构
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     Ladas.
     Ladas提出的一个公开问题。
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As is well known the regional tectonic stress field is of great importance to the study of seismogenesis, earthquake prediction and earth dynamics. In this paper a synthetic analysis of current tensile stress field existing in the block-faulting tectonic areas of North China is given on the basis of observations and investigations of various phenomena such as seismogenetic structure, ground failure and seismic fault caused by a great earthquake, focal mechanism, the pattern of elastic rebound, the...

As is well known the regional tectonic stress field is of great importance to the study of seismogenesis, earthquake prediction and earth dynamics. In this paper a synthetic analysis of current tensile stress field existing in the block-faulting tectonic areas of North China is given on the basis of observations and investigations of various phenomena such as seismogenetic structure, ground failure and seismic fault caused by a great earthquake, focal mechanism, the pattern of elastic rebound, the triggering of earthquake by tidal force and so on.In addition, the influence of the Pacific plate and the Indian plate on the tensile stress field in North China as a result of underthrusting of both plates under the Asian continent, is also discussed here, and it should be emphasized that the process occurring in the deep-seated portion of the earth crust must be of great importance to the tensile stress field present in North China.

区域构造应力场对于研究地震成因、地震预报和地球动力学都具有重要的意义。本文根据华北的主要发震构造、大地震时的地面破裂和地震断层、震源机制、断层弹性回跳模式以及潮汐力对地震的触发关系等方面的资料,综合论述了华北块断构造区的现代引张应力场。最后探讨了太平洋板块和印度板块向亚洲大陆俯冲对华北引张应力场的影响。指出深部作用对华北引张应力场的实际意义。

This paper gives a general account of the contents of related papers read at the symposium on “Seismie Tomography and Three-dimensional Method”first held at 1984 Spring Annual Meeting of the American Geo- physical Union.Seismic tomography has been using ever-increasing earthquake data in recent years to obtain seismic wave velocity structure of three-dimensional patterns by new computing technology to satisfy various constraints.As a result the three-dimensional distribution of wave velocity at various mantle...

This paper gives a general account of the contents of related papers read at the symposium on “Seismie Tomography and Three-dimensional Method”first held at 1984 Spring Annual Meeting of the American Geo- physical Union.Seismic tomography has been using ever-increasing earthquake data in recent years to obtain seismic wave velocity structure of three-dimensional patterns by new computing technology to satisfy various constraints.As a result the three-dimensional distribution of wave velocity at various mantle depths all over the world has been obtained and a comparison with the available distribution map of plate tectonics shows that seismic wave velocity is slow in most of the active tectonic areas,rift valley zones,volcanic areas and beneath mid-oceanic ridges,while it is fast beneath plateform areas.The distribution of wave velocity in some other areas manifests certain particularities,which is worth further study.The map of mantle con- vection constructed by Tanimoto et al.provides new quantitative basis for studies on plate tectonics.Seismic tomography has become an important means to the study of physical and chemical properties of the earth′s interior.

本文概述了美国地球物理联合会1984年春季年会上首次举办的“震波射线层析图象技术和三维方法”专题讨论会有关文献的内容。震波射线层析图象技术利用近年来日益增多的地震数据,用新的计算技术求得三维图象的地震波速构造,使之满足各种约束条件。求得全球各种地幔深度范围的三维波速分布,并与现行的板块构造分布图作对比,结果表明,在大部分构造活动区,裂谷带、火山区和大洋中脊下面的震波速度是慢的,而地台区下面的波速是快的,另有一些地区的波速分布表现了一定的特殊性,值得进一步研究。谷本等得出的地幔对流图为板块大地构造研究提供了新的定量基础。震波射线层析图象技术已成为研究地球内部物理、化学性质的重要手段。

Southeastern China, approachingt the western Pacific ocean,was located oa the fore of the Eurasian plate, which is a typical tectonic area of the continental plate breakup since the chinese continent growth toward east and south. Two large-scale collisions and junctions had taken place since 1200Ma,i.e. that Yangtze plate subducted from south to north during the period of 1000Ma as well as obducted from southwest to northeast and overlapped on the Lower Yangtze sub-plate during the period of 500Ma. After...

Southeastern China, approachingt the western Pacific ocean,was located oa the fore of the Eurasian plate, which is a typical tectonic area of the continental plate breakup since the chinese continent growth toward east and south. Two large-scale collisions and junctions had taken place since 1200Ma,i.e. that Yangtze plate subducted from south to north during the period of 1000Ma as well as obducted from southwest to northeast and overlapped on the Lower Yangtze sub-plate during the period of 500Ma. After this tectonic event, the basement structure framework of southeastern China was established. Mean while, three parallel continental plate breakup in NNE trend with ( 1 ) accompanying the collision, glowthing a suit of ultrobasic-basic rock and calc-alkali complex "intruded" and eruped on the big type transitional-breakup belt of NNE trend during the period of lOOOMa; 2 ) during the period of 160 to 100Ma, the newly continental breackup was taken place on the eastern margin of the Eurasian continental plate along NNE-SN trend.Korea peninsula,Japan Islands and Taiwan Islands consisted of clastic mass breakup toward east. In the meantime of destruetion, a suit of the continent type rhyolite chain was formed: (3) after 35Ma, lately breakup occurred on the Eurasian continental margin, and this breakup made the western Pacific boundary by Itoigawa-Shiz-uoka tectonic line .Growthed magma-tectonic terrain, containing alkaline basalt, tholeiite system,occurred on the breakup belt to the of boundary that consisted of Kuril-northeast Japan Islands-Izu-Bonin and extended along SN to NNW trend.We think that the evolution of lithosphere plate of southeastern China was directly correlated with the process of the Eurasian plate growthing toward east.

中国东部构造演化,自1200Ma以来曾发生过两次碰撞、三次裂解。并有向东增生的构造岩浆地体。资料表明:①从中国大陆向东至日本、台湾均为人陆型地壳;②中国东部及西太平洋大陆板块的各微板块之间地壳结构不同;③裂解带的形成是由于热点和地幔对流导致大陆解体;④裂解带均显示出高重力正异常,上地幔顶部波速低、具低速层、高热流区的“裂谷垫”性质;⑤增生的构造岩浆地体同位素组成、微量元素与洋中脊玄武岩的性质有较大差异,裂解带的岩浆为大陆地幔的特征;⑥上地幔特征及岩浆分融、分异均显示出横向不连续。也显示山化学边界层和热边界层的不连续。

 
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