| 山东半岛东北部新发现近EW向活断层 |
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| 引用本文： | 马保起,舒赛兵,刘光勋.山东半岛东北部新发现近EW向活断层[J].地震地质,2004,26(4):638-644. |
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| 作者姓名： | 马保起 舒赛兵 刘光勋 |
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| 作者单位： | 中国地震局地壳应力研究所,北京,100085 |
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| 基金项目： | 地震科学联合基金(198050)和(101096)共同资助 |
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| 摘 要： | 山东半岛东北部地区晚第四纪的构造活动以整体性抬升为主,内部的断裂活动相对较弱,晚更新世以来的断裂活动仅分布在局部地区,新发现的东殿后断裂是其中的1条。断裂总体走向近EW,全长约20km,地貌上表现为由3条河流上游组成的谷地。断裂错断的最新地层的热释光年龄为84～75kaBP,上覆坡积角砾层的热释光年龄为64kaBP,断裂发育的松软断层泥的热释光年龄为82kaBP。断裂的剖面特征和断盖地层的年龄表明,东殿后断裂的最新活动时代是晚更新世早中期,垂直活动速率不<016mm/a,晚更新世晚期以来停止活动;断裂的最大潜在地震为6级
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| 关 键 词： | 晚更新世 最大潜在地震 山东半岛 东殿后断裂 |
| 文章编号： | 0253-4967(2004)04-0638-07 |
| 收稿时间： | 04 April 2004 |
| 修稿时间： | 2004年4月5日 |
A NEWLY DISCOVERED E-W-TRENDING ACTIVE FAULT IN THE NORTHEAST PART OF SHANDONG PENINSULA |
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| MA Bao qi SHU Sai bing LIU Guang xun.A NEWLY DISCOVERED E-W-TRENDING ACTIVE FAULT IN THE NORTHEAST PART OF SHANDONG PENINSULA[J].Seismology and Geology,2004,26(4):638-644. |
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| Authors: | MA Bao qi SHU Sai bing LIU Guang xun |
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| Institution: | Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China |
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| Abstract: | Late Quaternary tectonic movement in the northeast part of Shandong Peninsula was dominated mainly by integral uplift, while fault activity inside the peninsula was relatively weak. Late Pleistocene faults are limited to some local areas, and one of them is the newly discovered Dongdianhou Fault. The fault is located to the north of Taiboding Mountains, associated with a broad fracture zone of 100m wide. Outcrops of fault profile can be observed in many places along the fault strand. The fault has a general |
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| Keywords: | late Pleistocene maximum potential earthquake Shandong Peninsula Dongdianhou Fault |
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