| 山东海阳断裂东石兰沟段晚更新世以来地表断错特征与最大潜在地震估计 |
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| 引用本文： | 周本刚,冉勇康,环文林,冉洪流.山东海阳断裂东石兰沟段晚更新世以来地表断错特征与最大潜在地震估计[J].地震地质,2002,24(2):159-166. |
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| 作者姓名： | 周本刚 冉勇康 环文林 冉洪流 |
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| 作者单位： | 1. 中国地震局地质研究所,北京100029
2. 中国地震局地球物理研究所,北京100081 |
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| 摘 要： | 海阳断裂是胶东半岛NE向牟平 -即墨断裂带东部一条规模较大的断裂 ,尽管晚更新世以来该断裂的地表断错活动总体上已基本停息 ,但东石兰沟段在晚更新世晚期以来仍有断错地表的活动。最后一次断错地表的活动发生在距今 3 7～ 1 2万年 ,但接近 1 2万年。地表破裂长度约6 5km ,活动段长度 8km。地表断错以走滑活动为主 ,可见最大倾滑位移 0 2m ;根据断层擦痕侧伏角推测最大水平位移 1 13m。最后一次断错地表的活动若以距今 1 2万年计算 ,则最大平均倾滑速率为 0 0 17mm/a ;最大平均右旋走滑速率为 0 0 94mm/a。野外观测到该活动段的断错活动表现为突发断错 ,根据地震地表破裂参数、活动段长度与地震的关系 ,估计其最大潜在地震为 6 级
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| 关 键 词： | 活动断裂 晚更新世 地表断错 最大潜在地震 |
| 文章编号： | 0253-4967(2002)02-0159-08 |
| 修稿时间： | 2001年5月14日 |
LATE PLEISTOCENE SURFACE FAULTING AND THE MAXIMUM POTENTIAL EARTHQUAKE ON THE DONGSHILANGOU SEGMENT OF THE HAIYANG FAULT, SHANDONG PROVINCE |
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| ZHOU Ben gang RAN Yong kang HUAN Wen lin RAN Hong liu Institute of Geology,China Seismological Bureau,Beijing ,China Institute of Geophysics,China Seismological Bureau,Beijing ,China.LATE PLEISTOCENE SURFACE FAULTING AND THE MAXIMUM POTENTIAL EARTHQUAKE ON THE DONGSHILANGOU SEGMENT OF THE HAIYANG FAULT, SHANDONG PROVINCE[J].Seismology and Geology,2002,24(2):159-166. |
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| Authors: | ZHOU Ben gang RAN Yong kang HUAN Wen lin RAN Hong liu Institute of Geology China Seismological Bureau Beijing China Institute of Geophysics China Seismological Bureau Beijing China |
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| Institution: | ZHOU Ben gang 1) RAN Yong kang 1) HUAN Wen lin 2) RAN Hong liu 1) 1) Institute of Geology,China Seismological Bureau,Beijing 100029,China 2) Institute of Geophysics,China Seismological Bureau,Beijing 100081,China |
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| Abstract: | The Haiyang fault of 115km length is a larger scale fault in the east of the NE striking Mu ping Jimo Fault zone in Jiaodong Peninsula, Shandong Province. This fault showed intense surface faulting during middle Pleistocene, while dip slip reverse displacement of larger than 1m on the fault can be identified in the field. Although the surface faulting along the fault has generally ceased since late Pleistocene, late Pleistocene surface faulting still occurred on the Dongshilangou segment of the fault |
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| Keywords: | Active fault Late Pleistocene Surface faulting Maximum potential earthquake |
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