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anomalous region
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  异常区
     The results have shown that for 82% of the moderate earthquakes in obvious anomalous region with high GL \|values appears near the future epicenter about 1~3\^5 years before the earthquakes in North China.
     结果表明 :华北地区 82 %的中强震前约 1~ 3 5年内 ,在未来震中附近出现明显的高值异常区 ,地震多发生在异常区的边缘或附近。
短句来源
     Qualitative and quantitative interpretation of the magnetic anomaly is made in the light of the analysis of the geological and geophysical characteristics of the anomalous region, it is deduced that the magnetic anomaly reflects the granite intrusion dated back to Yan Shan movement period in Mesozoic Era, and that the minimum buried depth on the top of the intrusion is about 1500m.
     根据异常区的地质和地球物理特征,作出了磁异常的定性和定量解释,推断它是中生代燕山期花岗岩侵入体的反映,顶部最小埋深约1500m;
短句来源
     It is determined that distributin of geothermal anomalous region on late-Mesozoic era in ordos basin is Wuqi-Qingyang-Fuxian at the sourth of basin. It is decided that tectonic heat event occurred on 100~140 Ma of early-Cretaceous period in late-Mesozoic, continuous time of tectonic heat event is about 10~40 Ma.
     鄂尔多斯盆地中生代晚期地热异常区主要分布在盆地南部的吴旗—庆阳—富县一带,构造热事件主要发生在中生代晚期早白垩世约140~100Ma,构造热事件持续时间约在10~40Ma之间。
短句来源
     The resultsshow that the seismic velocity ratio had anomalous variations in period ofduring January, 1982 to November, 1983 before the Heze earthquake, andthe maximum linear dimension of anomalous region was about 220 km.
     本文结果表明,菏泽地震前,即1982年1月至1983年10月波速比出现异常变化,异常区最大线度约220公里;
短句来源
     The results show anomalous region with stress decrease was produced in epicenter region and its vicinity two years before the earthquake.
     结果表明 ,唐山地震前 2年 ,在震中区及附近出现应力下降异常区 .
短句来源
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  “anomalous region”译为未确定词的双语例句
     A new division method based on anomalous region is proposed, in which the determination of the region border is of enough evidence.
     针对原有矩形区域划分的弊端,采用基于一种不规则区域划分法,使区域划分中边线的确定有理有据;
短句来源
     The maximum negative geomagnetic anomalies of declination and intensities at the central part of the anomalous region before the Haicheng and the Tangshan earthquakes were respectively D=1.5' and 2.0' per year all pointed toward the epicenters; H=10 and 25nT per year; Z =10 and 30nT per year;
     地磁负异常中心处对应上述两次大震前的最大值分别为=1.5′和2.0′/a并指向震中方向,10和25nT/a,10和30FnT/a,10和45nT/a。
短句来源
     The anomalies were banded, and its dis tribution was uniform with the Keping fault. The magnitude 6. 5 earthquake just occurred nearby the center of the anomalous region.
     异常形态呈条带状,分布范围与柯坪断裂基本一致,6.5级地震就发生在增温异常的中心地区附近。
短句来源
     During the positive(negative) second mode SST anomalous periods,the warmer(colder) SST appears in the east coasts of Asia to the mid-latitude North Pacific region,then the entire Aleutian low is weakened(intensified),the warmer(colder) atmosphere and weakened(strengthened) westerly jet overlaps on the warm(cold) SST anomalous region.
     在第2种耦合型东亚沿海至中纬度北太平洋海流区SST偏暖(冷)时,阿留申低压整体偏弱(强),SST暖(冷)异常上空的大气温度偏暖(冷),高层西风急流区西风偏弱(强)。
短句来源
     Both of the two leading modes display that the anomalous region of the atmosphere has good local correlation with that of the ocean over the middle latitude North Pacific.
     两种耦合型均显示出在北太平洋中纬度地区大气和海洋的异常相关中心有很好的空间对应性。
短句来源
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  相似匹配句对
     ANOMALOUS CHARACTERISTICS OF SEISMICITY ENTROPY IN LIAONING REGION
     辽宁地区地震活动熵值的异常特征
短句来源
     The anomalous behaviors in the "Hall dip" region are discussed.
     讨论了纵向磁阻和横向磁阻的各向异性和反常“霍尔系数下凹”区的行为.
短句来源
     The mountainous- region in the .
     湖南省湘西山地是我国南方山地的一个重要类型。
短句来源
     Culture Region
     文化区
短句来源
     Anomalous Codeposition of Alloys
     合金异常共沉积研究
短句来源
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  anomalous region
22, 2003, Y/Yc anomalous region occurred successively near the epicenter from April 2002 to June 2002, and the maximum anomaly of Y/Yc occurred in May, 2002.
      
This anomalous region could be explained in terms of the partitioning of cobalt as the growth rate decreased.
      
Omitting an anomalous region at lowΔK, the extrapolated rates for "pure" aluminum are more than 100 times greater than those in the three alloys at the same ΔK.
      
For problems of diffusive imaging, we describe our recent efforts in parametric, shape-based techniques for directly estimating the geometric structure of an anomalous region located against a perhaps partially-known background.
      
To study surface deformations of this anomalous region, a network covering about 2000 square kilometres for repeated geodetic measurements was established in 1993 - 1994.
      
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In this paper the methods for the determination of the seismic velocity anomalous regions before earthquakes, based on the arrival times of the direct waves are given. Some preliminary results regarding the anomalous regions before some strong and moderate earthquakes in Western China have been obtained. Certain fundamental characteristics of the anomalous regions have been investigated and discussed, namely, the form, the size and orientation of each of the anomalous regions, the relative...

In this paper the methods for the determination of the seismic velocity anomalous regions before earthquakes, based on the arrival times of the direct waves are given. Some preliminary results regarding the anomalous regions before some strong and moderate earthquakes in Western China have been obtained. Certain fundamental characteristics of the anomalous regions have been investigated and discussed, namely, the form, the size and orientation of each of the anomalous regions, the relative positions of the main shocks within the regions and the distribution and development of the velocity anomalies. Finally, the relationship between the anomaly size and the linear dimension of the earthquake sources is derived and discussed briefly.

本文介绍了根据近地震直达波到时资料确定震前波速异常区(简称孕震区)的方法,并给出了我国西部地区某些较大地震前波速异常区(孕震区)的初步测定结果。探索并讨论了孕震区的一些基本特性,即孕震区的形状、大小,孕震区的定向,主震在孕震区内所处的部位,孕震区内部波速异常状态的分布与发展等。最后还导出了孕震区线度与震源区尺度间的关系式,并作了简单的讨论。

Before the Tangshan earthquake, magnitude 7.8 on July 28, 1976, nine of the fourteen resistivity stations located within the region of Peking, Tientsin and Tangshan recorded gradual decreases in apparent electrical resistivity for a period of 2-3 years. The anomalous region as deduced from the records of these nine stations has a semi-major axis of about 150 km surrounding the epicenter and yet two of the stations located very close to the epicenter recorded rapidly decreasing apparent resistivity anomaly...

Before the Tangshan earthquake, magnitude 7.8 on July 28, 1976, nine of the fourteen resistivity stations located within the region of Peking, Tientsin and Tangshan recorded gradual decreases in apparent electrical resistivity for a period of 2-3 years. The anomalous region as deduced from the records of these nine stations has a semi-major axis of about 150 km surrounding the epicenter and yet two of the stations located very close to the epicenter recorded rapidly decreasing apparent resistivity anomaly during a period of more than 2 months immediately before the earthquake. According to results of some field measurements in-situ of the apparent resistivity decrease due to compression of rock or soil layers near earth's surface, we estimated that the linear compressional strain of shallow layers in and around the epicentral area is about 3 × 10-5. Compressional strain of much the same order of magnitude has been observed by base line survey before the Tangshan earthquake.

1976年7月28日唐山7.8级强震前,北京、天津、唐山地区已布设14个形变电阻率观测台站,其中9个台,震前2—3年内记录到形变电阻率长趋势下降异常,这9个台围绕震中形成一个半长轴可达150公里的异常区.位于震中区的两个台还记录到临震前2—3个月内的加速下降异常.根据现场条件下地表浅部岩(土)层受压时,视电阻率下降的实验结果,认为在震中周围较大的区域内,震前浅部岩(土)层被压密,其压缩线应变的数量级约为3×10~(-5).这一认识得到唐山震前地面基线实测资料的支持.

A earthquake series is referred as the events being successively occurred in a definite time and in the same seismic area. These events are characterized by the common developing process and an unified evolutional history of precursory field. We consider that the seismic precursory field is nothing but a regional field beyond a certain source region.For the North China fault block region can be recognized two earthquake series, Xingtai-Bohai and Haicheng-Tangshan series ever since the occurrence...

A earthquake series is referred as the events being successively occurred in a definite time and in the same seismic area. These events are characterized by the common developing process and an unified evolutional history of precursory field. We consider that the seismic precursory field is nothing but a regional field beyond a certain source region.For the North China fault block region can be recognized two earthquake series, Xingtai-Bohai and Haicheng-Tangshan series ever since the occurrence of Xingtai earthquake of 1966 to the year of 1978. The anomalies in the precursory field of this series started in 1972, after 1976 Tangshan earthquake it has been gradually becoming quiet. With regard to the developmental process of this field and its spatial distribution can be distinguished following five anomaly-development periods and relevant six stages.1. The primary period (A), during which the precursory field is developed from the stage in a scattered form (Ⅰ) to a divergent stage on a large scale (Ⅱ).2. Accelerated period (B) before Haicheng earthquake, during which the precursory field migrates northward entering into a convergent stage (Ⅲ) in the extent.3. Developing period (C), during which the precursory field enters into a rediver-gent stage (Ⅳ).4. Transitional or accelerated period before the Tangshan earthquake (D), during which the precursory field enters into a reconvergent stage(Ⅴ).5. Impending period before the Tangshan earthquake (E), during which the precursory field enters into a divergent stage (Ⅴ).It is suggested that the formation and development of the precursory field are closely related to the conjugated shear-rupturing network, and the distribution and development of anomalous points or zones are constrained by slipping of conjugated shear-ruptures and stress concentration at the various tectonic position. Consequently, the precursory phenomena would not be limited in the source area and its neighbouring regions, and the multi-anomalous regions (zone) are formed.Finally, the relationship of the regional precursory field with the earthquake prediction is studied. In general the regional precursory field does not imply only one event, perhaps an earthquake series, and the precursory extent has a certain relation to the magnitude of an event. To discriminate the location of one shock from the earthquake series it is necessary to pay attention to the spatial changes in the precursory field, such as the migration and convergence of anomalies. On the background of regional precursory field, the macroscopic anomalies in a great amount and concentrated form together with some abrupt anomalies can be taken as a precursory signal of a big imminent earthquake.

一个地震系列是指一定时间内,在同一地震区中连续发生的若干地震事件。它们有一个共同的孕育过程,因而具有统一的前兆场的演化历史。地震前兆场是一个区域场,而不只局限于某个震源区的变化。根据本文所定义的地震系列和前兆场的概念,研究了海城—唐山地震系列孕育过程中地震前兆场的时空演化特征。它可以分为不同的阶段,每个阶段的异常特征及空间分布特点不同。在此基础上,讨论了它们与地质构造的关系及其对地震预报的意义,包括前兆场的区域大小与震级、前兆场的空间变化过程与发震地点的关系及地震发生前的短临前兆标志。

 
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