...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Oceanography >Investigation of the Huge Tsunami from the 2011 Tohoku-Oki,Japan, Earthquake Using Ocean Floor Boreholes to the Fault Zone
【24h】

Investigation of the Huge Tsunami from the 2011 Tohoku-Oki,Japan, Earthquake Using Ocean Floor Boreholes to the Fault Zone

机译：使用海底钻孔到断层带对2011年日本东北冲木发生的巨大海啸进行的调查

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Integrated Ocean Drilling Program (IODP) Expedition 343, named the Japan Trench Fast Drilling Project (JFAST), drilled ocean floor boreholes through the fault zone of the 2011 Tohoku-Oki earthquake (M9.0) to enhance understanding of the rupture process and tsunami generation. This project investigated the very large fault slip that caused the devastating tsunami by making borehole stress measurements, sampling the plate boundary fault zone, and taking temperature measurements across the fault zone. The results show that the earthquake rupture occurred in a narrow fault zone (＜ 5 m). Based on both laboratory experiments on fault zone material and temperature monitoring of the fault zone, we show that the fault had very low friction during the earthquake. The low friction properties of the fault zone might be attributed to high smectite clay content of the sediment. These physical and factional characteristics contributed to the unusually large fault slip that occurred during the earthquake and generated the tsunami.
机译：名为“日本海沟快速钻井项目”（JFAST）的综合海洋钻探计划（IODP）远征343在2011年东北冲积地震（M9.0）的断裂带上钻了海底钻孔，以加深对破裂过程和海啸的了解代。该项目通过进行井眼应力测量，对板块边界断层带进行采样以及对整个断层带进行温度测量，研究了造成破坏性海啸的超大型断层带。结果表明，地震破裂发生在狭窄的断裂带（＜5m）内。根据对断层带材料的实验室实验和对断层带温度的监测，我们发现断层在地震过程中的摩擦很小。断层带的低摩擦特性可能归因于沉积物中蒙脱石粘土含量高。这些物理和派系特征导致了地震期间发生的异常巨大的断层滑动，并引发了海啸。

著录项

  • 来源
    《Oceanography》 |2014年第2期|132-137|共6页
  • 作者

    JIM MORI; FREDERICK CHESTER; EMILY E. BRODSKY; SHUICHI KODAIRA;

  • 作者单位

    Disaster Prevention Research Institute, Kyoto University, Uji, Kyoto, Japan;

    Department of Geology and Geophysics, Texas A&M University, College Station, TX, USA;

    Department of Earth and Planetary Sciences, University of California Santa Cruz, Santa Cruz, CA, USA;

    R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology, Yokohama, Kanagawa, Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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