| 酒西盆地断层活动特征及古地震研究 |
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| 引用本文： | 闵伟,张培震,何文贵,李传友,毛凤英,张淑萍.酒西盆地断层活动特征及古地震研究[J].地震地质,2002,24(1):35-44. |
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| 作者姓名： | 闵伟 张培震 何文贵 李传友 毛凤英 张淑萍 |
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| 作者单位： | 1. 中国地震局地质研究所,北京,100029
2. 中国地震局兰州地震研究所,兰州,730000 |
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| 基金项目： | 国家重点基础研究发展规划项目 (95 130 10 4 )，国家自然科学杰出青年基金 (4982 5 10 4 )共同资助，中国地震局地质研究所论著 2 0 0 2B0 0 0 3 |
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| 摘 要： | 通过室内航片判读和野外调查 ,在酒西盆地发现 3条全新世活动逆掩断层 ,它们全新世以来的垂直活动速率都很接近 ,为 0 18～ 0 2 5mm/a。通过探槽揭露出的 3条断层全新世以来各发生两次古地震事件。根据探槽揭露的古地震年代及断层活动所形成的微地貌特征分析 ,阴洼山断层是独立活动的 ;北大河断层和新民堡断层上的古地震事件在时间上可能非常接近 ,具有丛集特征 ,或者是一次地震事件分别破裂这两条断层 ,但目前的测年手段还无法区别它们是一次破裂事件形成还是时间上非常接近的两次事件所形成的
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| 关 键 词： | 活动断层 滑动速率 古地震 祁连山 酒西盆地 |
| 文章编号： | 0253-4967(2002)01-35-10 |
| 修稿时间： | 2001年3月15日 |
RESEARCH ON THE ACTIVE FAULTS AND PALEOEARTHQUAKES IN THE WESTERN JIUQUAN BASIN |
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| MIN Wei ZHANG Pei-zhen HE Wen-gui LI Chuan-you MAO Feng-ying ZHANG Shu-ping Institute of Geology,China Seismological Bureau,Beijing ,China Lanzhou Institute of Seismology,China Seismological B.RESEARCH ON THE ACTIVE FAULTS AND PALEOEARTHQUAKES IN THE WESTERN JIUQUAN BASIN[J].Seismology and Geology,2002,24(1):35-44. |
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| Authors: | MIN Wei ZHANG Pei-zhen HE Wen-gui LI Chuan-you MAO Feng-ying ZHANG Shu-ping Institute of Geology China Seismological Bureau Beijing China Lanzhou Institute of Seismology China Seismological B |
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| Affiliation: | MIN Wei 1) ZHANG Pei-zhen 1) HE Wen-gui 2) LI Chuan-you 1) MAO Feng-ying 1) ZHANG Shu-ping 1) 1) Institute of Geology,China Seismological Bureau,Beijing 100029,China 2) Lanzhou Institute of Seismology,China Seismological B |
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| Abstract: | The Western Jiuquan (Jiuxi) Basin is located in the westernmost part of the Hexi Corridor. The basin is bounded by the Qilian Mountain fault on the south, by Alytn Taugh fault on the north, and by Jiayuguan fault on the east, respectively. The Hexi Corridor is one of the seismically active regions in western China. According to historical records, a large number of strong earthquakes had occurred in this area. Recently, we have discovered three Holocene active faults through the interpretation of aerial pho |
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| Keywords: | Active fault Slip rate Paleoearthquake Qilianshan Mountains Western Jiuquan basin |
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