| Marine Active Fault Exploration and Paleoearthquake Research |
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| 作者姓名： | Deng Qidong Chao Hongtai Min Wei Zhong Yizhang |
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| 作者单位： | [1]InstituteofGeology,CSB,Beijing100029,China [2]SeismologicalBureauofShandongProvince,Jinan250014,China |
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| 摘 要： | Marine active fault exploration and Paleoearthquake research are still a gap in China.The paper gives a review on major research methods and new progress made abroad,including submarine survey boat.seismic reflection and acoustic reflection.Through detailed studies of offset history of 10 ka to 30ka,it is possible to determine paleoearthquake recurrent intervals and elapsed time since last major earthquake.It is suggested that active fault exploration can be carried out by acoustic exploring method in large earthquake region of Bohai Sea.Paleoearthquake activity history can be revealed and earthquake risk in the future can be predicted.
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| 关 键 词： | 海底地形学 海相活动断层 古地震学 地震反射勘探 声反射 |
Marine Active Fault Exploration and Paleoearthquake Research |
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| Deng Qidong ,Chao Hongtai ,Min Wei ,Zhong Yizhang.Marine Active Fault Exploration and Paleoearthquake Research[J].Earthquake Research in China,2002,16(2):155-159. |
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| Authors: | Deng Qidong Chao Hongtai Min Wei and Zhong Yizhang |
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| Institution: | 1)Institute of Geology, CSB, Beijing 100029, China;2)Seismological Bureau of Shandong Province, Jinan 250014, China;1)Institute of Geology, CSB, Beijing 100029, China;3)Seismological Bureau of Liaoning Province |
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| Abstract: | Marine active fault exploration and paleoearthquake research are still a gap in China. The paper gives a review on major research methods and new progress made abroad, including submarine survey boat, seismic reflection and acoustic reflection. Through detailed studies of offset history of 10 ka to 30 ka, it is possible to determine paleoearthquake recurrent intervals and elapsed time since last major earthquake. It is suggested that active fault exploration can be carried out by acoustic exploring method in large earthquake region of Bohai Sea. Paleoearthquake activity history can be revealed and earthquake risk in the future can be predicted. |
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| Keywords: | Sea floor geomorphology Marine active fault Paleoearthquake Acoustic exploring |
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