[an error occurred while processing this directive] ������� 2018, 37(1) 148-153 DOI:   10.3969/j.issn.1004-5589.2018.01.012  ISSN: 1004-5589 CN: 22-1111/P

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PubMed
Article by Liu F
Article by Miao Y
Article by Jing Z
Article by Du H
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1. �й����ʲ����, ���� 100034;
2. ������Ȼ�����, ���� 100050;
3. �й�����ֵؿ�Ӧ���о���, ���� 100085
ժҪ�� ����dz�����̽������������ǰ-���������������������죬��������NW-SE������SW��Ϊ����ǵ����ϲ㣻�ڵ��������ϣ����Ѷϴ��˵���ϵ�ز㣻��һ��Ӧ����̽��������ǰ-�������ѽ���̽���о�����ϲ���ز�ѧ�������������������ⶨ�ȷ�������������������棬��ʾ�ϲ�����Ϊ���ϲ㣬����SW���Ͼ�>4.0 m���ϲ�����»ʱ��Ϊ������������ļͱ���Ϊ���Ի�����ѵ�ƽ����ֱ����Ϊ0.15 mm/a��
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Late Pleistocene activities characteristics of western segment of Puqian-Qinglan fault
LIU Feng-xiang1, MIAO Yu-yan2, JING Zhen-jie3, DU Hai-e1
1. Geological Museum of China, Beijing 100034, China;
2. Beijing Museum of National History, Beijing 100050, China;
3. Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China
Abstract: The marine shallow seismic exploration survey shows that Puqian-Qinglan fault extends NW seawards. It is a high angle normal fault striking NW-SE and dipping SW. On the seismic profile, the fault offsets Quaternary strata. Further study is undertaken combining drilling data with sequence stratigraphy, lithofacies analysis and dating, and a geological section across well boreholes is established, which reveals that the fault is a normal fault, dipping SW, and the fault throw is more than 4.0 m. The latest activity of the fault occurred in Late Pleistocene and it was characterized by extensional feature in Quaternary. The average vertical slip rate of the fault is 0.15 mm/a.
Keywords: Puqian-Qinglan fault   buried active fault   Late Pleistocene activity   shallow seismic exploration   drilling exploration  
�ո����� 2016-03-20 �޻����� 2017-06-28 ����淢������  
DOI: 10.3969/j.issn.1004-5589.2018.01.012
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