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地震波各向异性
相关语句
  seismic anisotropy
     Seismic anisotropy in the mantle transition zone beneath Fiji-Tonga
     斐济—汤加地幔过渡带的地震波各向异性
短句来源
     From Seismic Anisotropy to Anisotropic Seismology: A Review
     从地震波各向异性到各向异性地震学:地震波各向异性研究综述
短句来源
     THE DEFORMATION CHARACTERES OF QINGHAI-XIZANG LITHOSPHERE : IMPLICATION FROM EARTHQUAKE MECHANISM AND SEISMIC ANISOTROPY
     由震源机制和地震波各向异性探讨青藏高原岩石圈变形
短句来源
     Seismic anisotropy provides a new means in the study of dynamic Earth process and comes into being an important branch of seismology : anisotropic seismology.
     地震波各向异性为动力地球作用过程的研究提供了一种崭新的手段,它的科学潜力是巨大的、空前的,正逐步形成一个地震学的重要分支——各向异性地震学。
短句来源
     In addition, lattice preferred orientation-related seismic anisotropy can increase reflectivity, thus the mylonitized gneiss in ductile shear zone may be good reflectors.
     此外,与LPO相关的地震波各向异性会增强地震波的反射,所以韧性剪切带中的糜棱岩化片麻岩可能是地震反射的良好载体。
短句来源
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  seismic wave anisotropy
     By using four seismic tomographic profiles of nearly 8 000 km long across the Qinghai-Tibet Plateau, we obtained the crustal and mantle velocity images and seismic wave anisotropy over the depth down to 400 km, which revealed significant characteristics of the crust and mantle structure in the region.
     通过横穿青藏高原近 80 0 0km长的 4条天然地震层析剖面 ,获得 4 0 0km深度以上的地壳和地幔速度图像及地震波各向异性 ,揭示了青藏高原 4 0 0km深度范围内的地壳和地幔结构特征。
短句来源
  “地震波各向异性”译为未确定词的双语例句
     For that, we discuss the evolution of the study on the seismic waves in elastic anisotropic medium in detail, and review the main achivements obtained home and abroad up to date, propose some main problems which appear in the study and are expected to be solved.
     为此,本文较为详尽地讨论了弹性介质中地震波各向异性研究的沿革,简述了国内外现今取得的主要研究成果以及目前尚存在的和有待解决的一些主要问题.
短句来源
     The crustal medium is anisotropy to seismic wavepropagation from our research.
     这意味着,这一地区地壳介质存在地震波各向异性
短句来源
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  seismic anisotropy
Because plasticity is accompanied by seismic anisotropy and precedes or is associated with earthquakes, seismic anisotropy can be regarded as a medium-term precursor of an earthquake.
      
Seismic anisotropy of upper mantle in eastern Tibetan Plateau and related crust-mantle coupling pattern
      
It has been demonstrated by analyzing the DSS data in the Three Gorges Dam area that S wave splitting and polarization anomalies are reliable means for studying seismic anisotropy of crustal medium and the direction of regional tectonic stress field.
      
Seismic anisotropy of the crust in Yunnan, China: Polarizations of fast shear-waves
      
Crustal seismic anisotropy in southeastern Capital area, China
      
更多          
  seismic wave anisotropy
The lattice Boltzmann phononic lattice solid could be used to study how seismic wave anisotropy and attenuation are related to microfractures, the complex geometry of rock matrices, and their couplings to pore fluids.
      


the recent advances in the methods of earthquake prediction in USSR,pointing out that:the studies in USSR show that the anisotropy of the velocities of seismic wave propagations is related to the stress state in the rocks,and this is already applied to the practice of earth- quake prediction.Those areas with higher anisotropy may often be the ends or intersections of the deep faults,and also the foci where stresses concentrate.If measurements are taken to periodically observe the stress variations along the...

the recent advances in the methods of earthquake prediction in USSR,pointing out that:the studies in USSR show that the anisotropy of the velocities of seismic wave propagations is related to the stress state in the rocks,and this is already applied to the practice of earth- quake prediction.Those areas with higher anisotropy may often be the ends or intersections of the deep faults,and also the foci where stresses concentrate.If measurements are taken to periodically observe the stress variations along the faults,it would be possible to predict the directions of earthquake migrations and the places of forthcoming earthquakes.

介绍了苏联地震预报方法的新进展,指出,苏联的研究表明,岩石的应力状态与地震波传播速度的各向异性相关,并已运用到地震预报中;地震波各向异性较高处,往往是深断裂的端点和交汇部位,也是应力容易集中点,如定期观测其变化,将有可能预报地震的迁移方向和未来地震可能发生的地点。

The study of seismic waves propagation in anisotropic medium is one of frontier problems in seismology. It is also one of the difficulty problems. As the anisotropy of the underground rocks mainly manifests that: seismic waves velocities vary with propagating direction, different type body waves couple each other, the dispersions of surface waves Velocities depend on propagating direction, shear waves split, etc., furthermore, thin-layered medium and preferred cracked distribution are induced to apparent anisotropy....

The study of seismic waves propagation in anisotropic medium is one of frontier problems in seismology. It is also one of the difficulty problems. As the anisotropy of the underground rocks mainly manifests that: seismic waves velocities vary with propagating direction, different type body waves couple each other, the dispersions of surface waves Velocities depend on propagating direction, shear waves split, etc., furthermore, thin-layered medium and preferred cracked distribution are induced to apparent anisotropy. So it has great potentiality and bright future in significal applications for oil and gas seismic exploration, earthquake prediction and the study of lithosphere physics and dynamics, and lots of attention were focused on. For that, we discuss the evolution of the study on the seismic waves in elastic anisotropic medium in detail, and review the main achivements obtained home and abroad up to date, propose some main problems which appear in the study and are expected to be solved. In the last, we make some suggestion about the study of seismic wave motion, detection and it's application in anisotropic medium.

各向异性介质中地震波的传播研究是当今地震学研究领域中的前沿课题之一,同时也是地震学中难题之一.由于地下岩石的各向异性主要表现在:地震波速度随传播方向发生变化;不同类型体波间相互耦合;横渡发生分裂:面波速度频散依赖于传播方向等.薄互层与裂隙定向分布等产生视各向异性,放在石油地震勘探、地震预测和岩石层物理与动力学研究中有极大潜力和应用前景,并受到广泛重视.为此,本文较为详尽地讨论了弹性介质中地震波各向异性研究的沿革,简述了国内外现今取得的主要研究成果以及目前尚存在的和有待解决的一些主要问题.最后对我国在各向异性介质中地震波动、检测和应用等研究提出了一些看法.

Olivine-petrofabric data in combination with crystalelastic constants have beenused to calculate velocity anisotropy from mantle-derived xenoliths(1herzolite) inMingxi, Fujian province.It is suggested that seismic anisotropy originates from lattice preferred orientation(LPO) of olivine induced by plastic flow of highly anisotropic olivines. The Patterns of olivine fabric and distribution of Vp, VSV, VSH and△VS with respect to the tectonic setting implies the direction of mantle-matter flowfrom NWW to SEE, which...

Olivine-petrofabric data in combination with crystalelastic constants have beenused to calculate velocity anisotropy from mantle-derived xenoliths(1herzolite) inMingxi, Fujian province.It is suggested that seismic anisotropy originates from lattice preferred orientation(LPO) of olivine induced by plastic flow of highly anisotropic olivines. The Patterns of olivine fabric and distribution of Vp, VSV, VSH and△VS with respect to the tectonic setting implies the direction of mantle-matter flowfrom NWW to SEE, which is coincided with the orientation of a-[100] axies(maximum VP direction) of olivine beneath East-South coast region in China.

根据福建省明溪幔源包体(二辉橄榄岩)中橄榄石晶格优选方位(LPO)及其晶体弹性刚度系数,计算了地震波速度及其各向异性.研究结果表明,该区地震波各向异性是由橄榄石塑性流动产生晶格优选方位而引起的.与构造背景有关的VP,Vs1,Vs2和△Vs分布特征表明,中国东南沿海地区上地幔物质流动方向(由NWW向SEE)与橄榄石[100]定向排列方向(a轴)和VP最大方向有一致的趋势.

 
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