| 榆木山北缘断裂古地震特征研究 |
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| 引用本文： | 金卿,何文贵,史志刚,袁道阳.榆木山北缘断裂古地震特征研究[J].地震地质,2011,33(2):347-355. |
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| 作者姓名： | 金卿 何文贵 史志刚 袁道阳 |
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| 作者单位： | 中国地震局兰州地震研究所;中国地震局地震预测研究所兰州科技创新基地; |
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| 基金项目： | 国家自然科学基金(40872132); 中国地震局中国大陆7级以上大震危险区预测项目共同资助 |
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| 摘 要： | 榆木山北缘断裂位于祁连山主体山系以北的榆木山北部边缘.断裂活动形成一系列沿山前发育的断层陡坎.通过探槽剖面对发生在该断裂带上的古地震事件进行了分析,大致可以确定全新世以来的2次古地震事件.事件Ⅰ的年代为距今(4.066±0.086)ka;事件Ⅱ为距今(6.852±0.102)ka至(6.107±0.082)ka之间.该...
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| 关 键 词： | 榆木山北缘断裂 古地震 河西走廊 公元180年表氏7％级地震 |
| 收稿时间： | 2011-02-27 |
| 修稿时间： | 2011-05-13 |
PALAEO-EARTHQUAKE STUDY ON THE NORTHERN YUMUSHAN ACTIVE FAULT |
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| JIN Qing,HE Wen-gui,SHI Zhi-gang,YUAN Dao-yang.PALAEO-EARTHQUAKE STUDY ON THE NORTHERN YUMUSHAN ACTIVE FAULT[J].Seismology and Geology,2011,33(2):347-355. |
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| Authors: | JIN Qing HE Wen-gui SHI Zhi-gang YUAN Dao-yang |
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| Affiliation: | JIN Qing1,2) HE Wen-gui1,2) SHI Zhi-gang1,2) YUAN Dao-yang1,2)1)Lanzhou Institute of Seismology,China Earthquake Administration,Lanzhou 730000,China2)Lanzhou Base of Institute of Earthquake Prediction,Chian |
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| Abstract: | The northern Yumushan Fault located on the northern flank of Qilian fold system is an active fault in Holocene.The fault is about 60km long,trending NWW.It is a trust fault with left-lateral strike-slip component.The activity of the fault produced a series of scarps along the mountain front.The fault zone is divided into three segments,and the middle part is the most active.In this paper,palaeo-earthquake events on the fault are studied.With the study of trench profiles,two palaeo-earthquake events are dete... |
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| Keywords: | Northern Yumushan Fault palaeo-earthquake Hexi Corridor the M 71/2 Biaoshi earthquake in 180 AD |
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