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贺兰山东麓断裂南段套门沟-榆树沟段全新世活动与古地震
引用本文:杜鹏,柴炽章,廖玉华,宋方敏,孟广魁,雷启云,王银.贺兰山东麓断裂南段套门沟-榆树沟段全新世活动与古地震[J].地震地质,2009,31(2):256-264.
作者姓名:杜鹏  柴炽章  廖玉华  宋方敏  孟广魁  雷启云  王银
作者单位:1. 中国地质大学,北京,100083;宁夏回族自治区地震局,银川,750001
2. 宁夏回族自治区地震局,银川,750001
3. 中国地震局地质研究所,北京,1001029
基金项目:国家发展和改革委员会发改投资"城市活断层试验探测"项目 
摘    要:贺兰山东麓断裂是银川地堑西侧的重要构造,控制着银川地堑的西侧边界,其最新活动特征是评价未来银川市地震危险性的重要依据。文中在贺兰山东麓断裂南段套门沟—榆树沟段断裂两侧1km范围内1:10000地质填图的基础上,选择在大石头沟两侧进行探槽研究,获得该段断裂在14ka以来共发生了3次古地震事件,分别距今13.8ka、7.9ka和3.0ka,重复周期约为6ka和5ka左右

关 键 词:全新世  古地震  套门沟—榆树沟
收稿时间:2009-03-11

STUDY ON HOLOCENE ACTIVITY OF THE SOUTH SEGMENT OF THE EASTERN PIEDMONT FAULT OF HELAN MOUNTAINS BETWEEN TAOMENGOU AND YUSHUGOU
DU Peng,CHAI Chi-zhang,LIAO Yu-hua,SONG Fang-min,MENG Guang-kui,LEI Qi-yun,WANG Yin.STUDY ON HOLOCENE ACTIVITY OF THE SOUTH SEGMENT OF THE EASTERN PIEDMONT FAULT OF HELAN MOUNTAINS BETWEEN TAOMENGOU AND YUSHUGOU[J].Seismology and Geology,2009,31(2):256-264.
Authors:DU Peng  CHAI Chi-zhang  LIAO Yu-hua  SONG Fang-min  MENG Guang-kui  LEI Qi-yun  WANG Yin
Abstract:The eastern piedmont fault of Helanshan Mountains is an important tectonic controlling the west boundary of Yinchuan graben.The south segment of the fault locates right in the west of Yinchuan city,which has a length of about 13.2km,strikes NNE-NE and dips south-east at an angle of 50°~80°.The main part of the fault lies between the Ordovician and Quaternary systems,forming the borderline between the hills and diluvium.Parts of the segment of the fault appear in alluvial fans and are displayed as geomorphic
Keywords:Holocene  paleoearthquake  Taomengou-Yushugou  
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