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地块运动
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  block movement
     Rheological flows in the lower crust and upper mantle play an important role in controlling deformation of the upper crust. The present-day tectonic deformation of China' continent can be described in terms of a coupling model of rigid block movement and continuous deformation.
     以粘塑性流变为特征的下地壳和上地幔在周边板块作用下发生连续流动,从底部驱动着上覆脆性地块的运动,而不同活动地块本身的性质决定着地块的整体性和变形方式,中国大陆的现今构造变形可以用耦合的地块运动和连续变形模式来描述。
短句来源
  block motion
     NUMERICAL SIMULATION OF CONTEMPORARY CRUSTAL BLOCK MOTION IN CHINA AND SUROUNDING AREA
     中国及邻区现代地块运动的数值模拟
短句来源
     VELOCITY FIELD, BLOCK MOTION AND STRAIN FIELD DERIVED FROM GPS OBSERVATIONS IN MAINLAND CHINA
     中国大陆的GPS速度场、地块运动与应变场
短句来源
     Paleomagnetic data is a key data for quantitative investigating block motion in tectonic geology.
     古地磁数据是构造地质学定量探讨地块运动的重要数据 .
短句来源
  crustal block motion
     NUMERICAL SIMULATION OF CONTEMPORARY CRUSTAL BLOCK MOTION IN CHINA AND SUROUNDING AREA
     中国及邻区现代地块运动的数值模拟
短句来源
  “地块运动”译为未确定词的双语例句
     Movement directions of blocks are 61.1°、 93.8°、 113.1°、 134.8°、 141.6°,respectively;
     地块运动方向为61.1°、93.8°、113.1°、134.8°、141.6°;
短句来源
     Motions of the Ordos Block
     鄂尔多斯地块运动特征研究
短句来源
     By estimating the movement velocities of these stations and using a least-square fit under the hypothesis of a rigid body, the modern velocities of the Sichuan-Yunnan, Sichuan-Qinghai and Yangtze block movements are 19.2±2.8 mm/a, 10.7±3.2 mm/a and 9.7±1.6 mm/a respectively and the direction of their movement changes from SE to ESE gradually, indicating the features of clockwise vortex.
     利用所得的运动速度结果,采用刚性地块假设下的最小二乘法拟合方法,得到川滇、川青、扬子地块运动速度分别为(19.2±2.8)mm/a、(10.7±3.2)mm/a、(9.7±1.6)mm/a,地块运动方向由SE逐渐变成SEE,呈现出顺时针旋卷特征;
短句来源
     A Coupling Model of Rigid-block Movement and Continuous Deformation: Patterns of the Present-day Deformation of China's Continent and Its Vicinity
     中国大陆现今构造作用的地块运动和连续变形耦合模型
短句来源
     Using Inversion of Seismic Moment Tensor for the Movement of Erdos Block and the Linfen Macroquake
     用地震矩张量反演的鄂尔多斯地块运动与临汾大地震
短句来源
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      block movement
    The movement of the fault along the block boundary has provided the condition for block movement, so the movements of the block and its boundary are consistent, but the movement levels of the blocks are different.
          
    The mutual action of India, Pacific and Philippine Sea plates versus Eurasia plate is the principal driving force to the block movement in the Chinese mainland.
          
    Four types of block movement are identified based on group earthquakes: movement along a single boundary of a block (or a combined blocks), movement of a single block, movement of multi-blocks, and movement in block interiors.
          
    The block movement, fault basin extension and their regional distribution are systematically investigated.
          
    Since the resultant forces change with displacement, successive increments of block movement are examined to see whether the block ultimately becomes stable or fails.
          
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      block motion
    Experimental results show that the proposed approach can reduce the computational cost of full search and fast multi-block motion estimation by 80 % and 45 %, respectively, with similar visual quality and bit rate.
          
    A novel adjustable multiple cross-hexagonal search algorithm for fast block motion estimation
          
    In this paper, we propose a novel adjustable multiple cross-hexagonal search (AMCHS) algorithm for fast block motion estimation.
          
    Tectonic activity in the continental intraplate region is characterized by block motion.
          
    The kinematic characteristics of more than 200 active tectonic zones indicate that the intraplate tectonic activity represents a block motion at a limited low rate.
          
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    In this paper three aspects of analysis are made for the recent crustal movement in the Himalayas on the basis of earthquake data recorded from 1897-1976.1. The characteristics of the present active faults in this region were studied by the fault plane solutions.2. The vectors of the tectonic movement in the lithosphere blocks were calculated by the null vector method.3. The rate of the crustal slip, was estimated from the seismic moment data.In light of the analysis mentioned above, a model of recent crustal...

    In this paper three aspects of analysis are made for the recent crustal movement in the Himalayas on the basis of earthquake data recorded from 1897-1976.1. The characteristics of the present active faults in this region were studied by the fault plane solutions.2. The vectors of the tectonic movement in the lithosphere blocks were calculated by the null vector method.3. The rate of the crustal slip, was estimated from the seismic moment data.In light of the analysis mentioned above, a model of recent crustal movement in the Himalayas is tentatively presented as follows.1. According to the results calculated by the null vector method, the direction of the tectonic movement of the lower lithosphere in the Himalayas is NNE, and its plunge is nearly horizontal, indicating that convergence of the NNE-ward drifting Indian plate and the Eurasian plate was mainly a sort of collision in nature with intensive horizontal compression and shortening rather than underthrusting.2. The regional trend of the western part of the Himalayan arc is nearly perpendicular to the direction of the tectonic movement of the Indian plate. During the process of intensive horizontal shortening of the lithosphere. its upper part upthrusts with a rather low angle over the Ganges Plain, and now the type of movement is still going on chiefly along the main boundary fault and the Ganges Plain boundary fault. The strike of the eastern part of the Himalayas is nearly parallel to the direction of the tectonic movement of the Indian plate. Along this fault belt the Indian plate is moving NNE-ward and has a left-lateral strike slip relative to the Eurasian plate with some upthrust component.3. As a result of the intensive push of the Indian plate applied to the Himalayas, shortening of the latter at a rate of about 3.4 cm/y. was estimated. In the eastern part of the Himalayas the strain energy seems to be released chiefly by earthquake dislocations, but in the western part mainly through aseismic creeps. In the Qinghai-Xizang Plateau north of River Yarlungzangbo, the rate of shortening is probably less than that of the Himalayas. The north-south shortening of this Plateau causes the thickening of the crust and the eastward flow of the crustal materials, and consequently the intensive right-lateral strike slip along the Miju and Red River faults on the south side of this plateau.

    由于穿越条件的限制,用地面地质方法研究喜马拉雅地区的近期地壳运动有许多困难,但是地震活动与地震波特点可以为我们提供这方面的信息。我们对1897年以来80年间喜马拉雅地区的地震,做了以下三方面工作:1.根据地震活动与震源机制资料研究断层的现代活动方式。2.用零矢量方法确定地块运动位移矢量的方向。3.根据地震矩估算地壳滑动速率。最后,根据这三方面的工作成果,对这一地区的近期地壳运动模式做了初步讨论。

    Based on the mechanical feature of the fault plane and the stress analysis of some small structures, the authors of this paper have analyzed the stress field of the Red River fault zone in late geologic times. The paper shows the stress field is different between the fault's north and south segments, the boundary of which is near Yuanjiang county. The principal compressional stress in the north segment is NNW, whereas that in the south segment is NNE. The form of the fault's motions is different between the...

    Based on the mechanical feature of the fault plane and the stress analysis of some small structures, the authors of this paper have analyzed the stress field of the Red River fault zone in late geologic times. The paper shows the stress field is different between the fault's north and south segments, the boundary of which is near Yuanjiang county. The principal compressional stress in the north segment is NNW, whereas that in the south segment is NNE. The form of the fault's motions is different between the north and south segments as well. The main form of fault motion in the north segment is right-lateral, yet compressional-torsional in the south segment. The present stress field in the fault zone is studied in the light of data from the triangulation measurement and focal mechanism solutions of some earthquakes. It is identified that the present stress field in the fault zone is but the continuation of the stress activities in the late geologic times. Finally, discussion is made on the relationship between the patterns of the stress activity and the regional stress field in the Red River fault zone. The authors of this paper believe that the patterns of the fault's stress activity is effected by the regional stress field, especially by the motion of the “Dianzhong (Mid-Yunnan) block”.

    本文根据断裂结构面的力学性质和小构造的应力解析,分析了红河断裂带挽近时期的应力活动特征,表明红河断裂大致以元江为界,挽近时期应力场存在着纵向上的差异。北段主压应力为北北西向,南段为北北东向,从而表现在断裂的活动上,北段以顺扭为主,南段以压扭为主。另外,根据弥渡地区部分三角测量资料及红河断裂外围部分震源机制资料,对红河断裂现今的应力场进行了初步探讨,认为红河断裂现今基本继承了挽近时期应力活动特征。最后对红河断裂应力活动与区域应力场的关系行进了讨论,认为红河断裂的活动方式是受区域应力场作用,特别是受“滇中地块”运动的制约。

    Based on the geological times in which the fault zones were formed, features of their motions, distribution and variation of the associated stress fields, the author of this paper reaches the result that the motion of the Sichuan-Yunnan rhombic block is not directly caused by the collision and compression of the Indian oceanic plate against the Eurasian plate.The paper also suggests that motion of tne Sichuan-Yunnan rhombic block is caused by that the rock beds in the crust possess a kind of elasticity and plasticity...

    Based on the geological times in which the fault zones were formed, features of their motions, distribution and variation of the associated stress fields, the author of this paper reaches the result that the motion of the Sichuan-Yunnan rhombic block is not directly caused by the collision and compression of the Indian oceanic plate against the Eurasian plate.The paper also suggests that motion of tne Sichuan-Yunnan rhombic block is caused by that the rock beds in the crust possess a kind of elasticity and plasticity which are different from ordinary materials. Under the effect of gravitational forces over long periods, these rock beds tend to undergo geologic changes in which they slip slowly from their higher positions to the lower places. The author of this paper classifies such phenomena of geologic changes as "geologic glacier movement" which, according to the author, extensively exists in the movement: of the upper crust.

    本文从断裂带形成的地质时代,活动的性质,应力场的分布及其变化等方面的初步讨论,得出川滇菱形地块运动的原因与印度洋板板块向欧亚板块的碰撞、挤压没有直接的因果关系 同时讨论了川滇菱形地块运动的原因是由于地壳岩层具有一般物质所不同的弹性与塑性的特征,在重力的长期作用下,总是从高处向低处严生极其缓慢滑移的地质变动。作者称这种地质变动现象为地质冰川运动,地质冰川运动普遍存在于上层地壳的运动之中。

     
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