Active Characteristics and Seismic Risk of Northern Piedmont Fault of Changling Mountains in Gulang County , Gansu
详细信息
- 责任者：Liu Qiang (Lanzhou Base ; Institute of Earthquake Prediction ; CEA ; Lanzhou 730000 ; China) ; Wang Aiguo
- 刊名：Northwestern Seismological Journal
- 出版年：2011
- 卷期：33(2)
- 关键词：活动断层 ; active faults ; 地震危险性 ; seismic risk ; 甘肃 ; Gansu Province
- 页码：p.123-129
- 图表：10 illus., 11 refs.
- 分类号：0300
- issnNo：ISSN1000-0844
- isbnNo：CN62-1048/P
摘要
///The geometric and kinematics characteristics,activity segmentation and seismic risk of northern piedmont fault of Changling Mountains in Gulang County, Gansu Province are studied through the field investigation, trench excavation and b-value calculation. The results show that the northern piedmont fault of Changlin Mountains can be divided into four secondary faults, distributes as an inverse “S” style in whole, and was active in early and middle stage of Holocene. Due to the elapsed time of the last seismic action being very long and the modern stress quick accumulation, the fault area has high seismic risk in the future.