| 祁连山东段天桥沟-黄羊川断裂古地震活动习性研究 |
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| 引用本文： | 郑文俊,袁道阳,何文贵.祁连山东段天桥沟-黄羊川断裂古地震活动习性研究[J].地震地质,2004,26(4):645-657. |
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| 作者姓名： | 郑文俊 袁道阳 何文贵 |
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| 作者单位： | 中国地震局地震预测研究所兰州创新基地,兰州,730000;中国地震局兰州地震研究所,兰州,730000 |
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| 基金项目： | 地震科学联合基金(102055)和(604018)共同资助 |
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| 摘 要： | 天桥沟-黄羊川断裂位于祁连山东段主峰冷龙岭以东,是祁连山东段的重要活动断裂之一。该断裂以关家台为界分为东西2段,全新世以来均有过明显的活动。沿断裂开挖了6个古地震探槽,通过综合对比得到了该断裂全新世以来的7次古地震事件和1次历史地震事件,其年代分别为事件Ⅰ(10743±343)aBP,事件Ⅱ(9038±39)aBP,事件Ⅲ(7050±577)aBP,事件Ⅳ(4847±185)aBP,事件Ⅴ(3562±190)aBP,事件Ⅵ(2476±194)aBP,事件Ⅶ(1505±253)aBP,事件Ⅷ为1927年古浪8级大地震。这表明该断裂可能也参与了1927年古浪8级地震的活动。各次古地震事件在时空分布上相对较均匀,大致具有准周期复发的特征
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| 关 键 词： | 活动断裂 古地震 活动习性 古浪 |
| 文章编号： | 0253-4967(2004)04-0645-13 |
| 收稿时间： | 10 April 2003 |
| 修稿时间： | 2003年4月11日 |
CHARACTERISTICS OF PALAEO-EARTHQUAKE ACTIVITY ALONG THE ACTIVE TIANQIAOGOU HUANGYANGCHUAN FAULT ON THE EASTERN SECTION OF THE QILIANSHAN MOUNTAINS |
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| ZHENG Wen jun , YUAN Dao yang , HE Wen gui , Lanzhou Base of Institute of Earthquake Science,China Earthquake Administration,Lanzhou ,China Lanzhou Institute of Seismology,China Earthquake Administration,Lanzhou ,China.CHARACTERISTICS OF PALAEO-EARTHQUAKE ACTIVITY ALONG THE ACTIVE TIANQIAOGOU HUANGYANGCHUAN FAULT ON THE EASTERN SECTION OF THE QILIANSHAN MOUNTAINS[J].Seismology and Geology,2004,26(4):645-657. |
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| Authors: | ZHENG Wen jun YUAN Dao yang HE Wen gui Lanzhou Base of Institute of Earthquake Science China Earthquake Administration Lanzhou China Lanzhou Institute of Seismology China Earthquake Administration Lanzhou China |
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| Institution: | 1. Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 730000, China;2. Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China |
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| Abstract: | The Tianqiaogou Huangyangchuan Fault (called also Gulang Fault) lies to the east of Lenglongling, the highest peak on the eastern section of the Qilianshan Mountains. It is one of the important active faults in eastern Qilianshan. From west to east, the fault is about 86km long, initiating from Hongyaoxian, extending eastward along Tainqiaogou, Qianjin, Guanjiatai, and Huangyangchuan villages, and ending at Jiapigou. The western segment of the fault is NWW trending, the middle is nearly E W trending and the |
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| Keywords: | active fault palaeo-earthquake activity Gulang |
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