| 青海大通宝库河断裂活动性研究 |
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| 引用本文： | 袁道阳,刘百篪,吕太乙,何文贵,刘小凤. 青海大通宝库河断裂活动性研究[J]. 地震工程学报, 1995, 17(4): 42-47 |
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| 作者姓名： | 袁道阳 刘百篪 吕太乙 何文贵 刘小凤 |
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| 作者单位： | 国家地震局兰州地震研究所 |
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| 摘 要： | 本文在对宝库河地区第四系及地貌单元划分对比的基础上，结合年代测试结果，分析了宝库河断裂带的断错微地貌特征。结果表明，宝库河断裂穿过的Ⅰ－Ⅲ级冲积、坡洪积阶地未被断错；经热释光年代测定，至少在距今６．６±０．８万年以来该断裂未再活动过，是一条晚更新世早期断裂，属左旋走滑型兼具挤压逆冲特性。
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| 关 键 词： | 断层活动性 热释光法 第四纪 宝库河断裂 |
| 收稿时间： | 1994-11-07 |
RESEARCH ON THE ACTIVITY OF BAOKU RIVER FAULT, DATONG COUNTY,QINGHAI PROVINCE |
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| Yuan Daoyang,Liu Baichi,Lu Taiyi,He Wengui and Liu Xiaofeng. RESEARCH ON THE ACTIVITY OF BAOKU RIVER FAULT, DATONG COUNTY,QINGHAI PROVINCE[J]. China Earthguake Engineering Journal, 1995, 17(4): 42-47 |
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| Authors: | Yuan Daoyang Liu Baichi Lu Taiyi He Wengui Liu Xiaofeng |
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| Affiliation: | Earthquake Research Institute of Lanzhou, SSB, Lanzhou,Earthquake Research Institute of Lanzhou, SSB, Lanzhou,Earthquake Research Institute of Lanzhou, SSB, Lanzhou,Earthquake Research Institute of Lanzhou, SSB, Lanzhou and Earthquake Research Institute of Lanzhou, SSB, Lanzhou |
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| Abstract: | In this paper,on the basis of division and comparison of the Quaternary system and geo-morphic units in Baoku river area and according to the ages of specimens,authors analysed the characters of dislocated micro-geomorphology. The results show that Baoku River fault does not cut the first-order to third-order alluvial or pluvial terraces crossed by the fault.Through the thermoluminescent dating, authors found that the Baoku river fault has not revived since 66±8 ka. B,P. The Baoku river fault is a left-lateral and compressional reverse fault,and belongs to late Pleistocene fault. |
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| Keywords: | Fault activity Thermol uminescent method Quaternary Geomorphic unit Baoku river fault |
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