Offshore earthquake- and/or tsunami-induced sediment transports and their deposits: Importance of marine sediment study for understanding past earthquakes and tsunami
Offshore earthquake- and/or tsunami-induced sediment transports and their deposits: Importance of marine sediment study for understanding past earthquakes and tsunami
复制标题
近海地震和/或海啸引起的沉积物输送及其沉积：海洋沉积物研究对于了解过去地震和海啸的重要性
DOI：
10.4096/jssj.71.141
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
K. Ikehara
中科院分区：
文献类型：
--
作者：
K. Ikehara
2011年东北太平洋沿岸发生地震，东北太平洋沿岸遭受了巨大损失。震后海底调查的初步结果表明，地震和/或其相关海啸的事件沉积物分布广泛。事件沉积物的特征和对其沉积过程的考虑对于了解特定地震在海底发生的情况以及识别过去的地震和/或海啸引起的近海沉积物非常重要。因此，应在三陆仙台海岸近海从沿海浅水区到日本海沟进行沉积学和地质调查，以明确事件沉积物的沉积过程和时间变化。将调查结果与模拟和实验研究相结合也很重要。
Huge damages occurred along the Pacific coast of Tohoku by the 2011 off the Pacific coast of Tohoku earthquake. The preliminary results on submarine investigations after the earthquake indicate the wide distribution of the event deposits by the earthquake and/or its related tsunami. Characterization of the event deposits and consideration of their depositional processes is very important to understand what happen at sea floor by the particular earthquake, and to recognize the past earthquakeand/or tsunami-induced offshore deposits. Therefore, sedimentological and geological investigations at the offshore of Sanriku-Sendai coast from coastal shallow water to the Japan Trench should be conducted to clarify the depositional processes and temporal changes of the event deposits. Integration of results of the investigations with the simulation and experimental studies is also important.