| Paleoseismicity and Segmentation Along the Active Fault at the Northern Boundary of Huailai-Zhuolu Basin,Hebei Province |
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| 作者姓名： | Ran Yongkang Fang Zhongjing Li Zhiyi Wang Jingbo and Li RuchengInstitute of Geology SSB Beijing China |
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| 作者单位： | Ran Yongkang，Fang Zhongjing，Li Zhiyi，Wang Jingbo，and Li RuchengInstitute of Geology，SSB，Beijing 100029，China |
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| 摘 要： | The northern boundary fault of Huailai-Zhuolu basin,Hebei Province,has a total length of 58 km and a general strike of NE.The geometry and feature of activity of the 5 segments of the fault greatly differ from each other.17 paleoseismic events have been recognized within 11 trenches excavated along the different segments of the fault.It is found that each segment is characterized by its distinct recurrence of paleoearthquakes.The recurrence intervals of strong earthquakes for each segment are 3500-7000 a for the shortest and 17,000-20,500 a for the longest.However,the recurrence interval of strong earthquakes for whole fault ranges between 750-8500 a.The boundary of the segments can be recognized as the junction,gap,bending,jog and salient of the fault.The length of the segment ranges between 7.5-14 km.
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Paleoseismicity and Segmentation Along the Active Fault at the Northern Boundary of Huailai-Zhuolu Basin,Hebei Province |
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| Ran Yongkang,Fang Zhongjing,Li Zhiyi,Wang Jingbo,and Li RuchengInstitute of Geology,SSB,Beijing ,China.Paleoseismicity and Segmentation Along the Active Fault at the Northern Boundary of Huailai-Zhuolu Basin,Hebei Province[J].Earthquake Research in China,1995(1). |
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| Authors: | Ran Yongkang Fang Zhongjing Li Zhiyi Wang Jingbo and Li RuchengInstitute of Geology SSB Beijing China |
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| Institution: | Ran Yongkang,Fang Zhongjing,Li Zhiyi,Wang Jingbo,and Li RuchengInstitute of Geology,SSB,Beijing 100029,China |
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| Abstract: | The northern boundary fault of Huailai-Zhuolu basin,Hebei Province,has a total length of 58 km and a general strike of NE.The geometry and feature of activity of the 5 segments of the fault greatly differ from each other.17 paleoseismic events have been recognized within 11 trenches excavated along the different segments of the fault.It is found that each segment is characterized by its distinct recurrence of paleoearthquakes.The recurrence intervals of strong earthquakes for each segment are 3500-7000 a for the shortest and 17,000-20,500 a for the longest.However,the recurrence interval of strong earthquakes for whole fault ranges between 750-8500 a.The boundary of the segments can be recognized as the junction,gap,bending,jog and salient of the fault.The length of the segment ranges between 7.5-14 km. |
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| Keywords: | Huailai basin Active fault Paleoearthquake Earthquake recurrence interval |
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