首页> 外文会议>ISPRS Technical Commission VIII Mid-Term Symposium >GEODYNAMICS OF THE INDIAN LITHOSPHERIC PLATE RELATIVE TO THE NEIGHBOURING PLATES AS REVEALED BY SPACE GEODETIC MEASUREMENTS
【24h】

GEODYNAMICS OF THE INDIAN LITHOSPHERIC PLATE RELATIVE TO THE NEIGHBOURING PLATES AS REVEALED BY SPACE GEODETIC MEASUREMENTS

机译:空间大地测量揭示的印度岩石板相对于相邻板的地球动力学

获取原文
获取外文期刊封面目录资料

摘要

The Indian Plate is highly dynamic in nature which in turn makes the Indo-Eurassian collision zone the foci of most of the historic large magnitude earthquakes. Processing of positional information from continuously observing reference stations is one of the space based geodetic techniques used globally and nationally to understand the crustal dynamics. The present study evaluates the dynamic nature of the Indian plate relative to its adjoining plates using the permanent GPS data (2011 to 2013) of 12 International GNSS Service (IGS), which are spread across the Indian, Eurassian, Australian, Somaliyan and African plates. The data processing was carried out using GAMIT/GLOBK software. The results indicate that the average velocity for the two IGS stations on the Indian Plate (Hyderabad and Bangalore) is 54.25 mm/year towards NE in the ITRF-2008 reference frame. The relative velocity of various stations with respect to the Indian plate has been estimated using the Bangalore station and has been found that the stations in the Eurasian plate (Lhasa, Urumqi, Bishkek and Kitab) are moving with velocity ranging from 25 to 33 mm/year in the SE direction resulting in compressional interaction with the Indian plate. This study reveals and confirms to the previous studies that the Indian-Eurassian-Australian Plates are moving at different relative velocities leading to compressional regimes at their margins leading to seismicity in these zones.
机译:印度板材在自然界中具有高度动态,又使Indo-Euriasian碰撞区成为大多数历史性的大型地震的焦点。从持续观察参考站处理位置信息是全球使用的基于空间的大地测量技术之一,以了解地壳动力学。目前的研究评估了使用12个国际GNSS服务(IGS)的永久性GPS数据(2011年至2013)的相邻板材的印度板材的动态性质,这些研究所在印度,Eusassian,澳大利亚,索马里亚和非洲板块上蔓延。使用Gamit / Globk软件执行数据处理。结果表明,ITRF-2008参考框架中,印度板(海德拉巴和班加罗尔)上的两个IGS站的平均速度为54.25毫米/年。使用班加罗尔站估计了各种车站的相对速度,并且已经使用班加罗尔站估计,发现欧亚板块(Lhasa,Urumqi,Bishkek和Kitab)的车站在25至33毫米的速度下移动。在SE方向上的一年导致与印度板块的压缩互动。本研究揭示并证实了前面的研究表明,印度欧斯 - 澳大利亚澳大利亚板块正在迁移不同的相对速度,导致他们的边缘在这些区域中的地震性的压缩制度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号