The Holocene Active Evidence on the Longci-Yukou Segment of oft-com:office:smarttags" />Luoyunshan Frontal Fault Zone , Shanxi
详细信息
- 责任者：Xu Jianhong (Institute of Crustal Dynamics ; China Earthquake Administration ; Beijing 100085 ; China) ; Xie Xinsheng
- 刊名：Seismology and Geology
- 出版年：2011
- 卷期：33(4)
- 关键词：断裂带 ; fracture zones ; 山西 ; Shanxi Province
- 页码：p.855-864
- 图表：5 illus., 1 table, 17 refs.
- 分类号：0300
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
The 145-km-long, southeast-dipping and normal-faulting with dextral slip Luoyunshan frontal fault zone controls the western edge of NE-trending Linfen Basin which locates at the southwestern part of the Shanxi fault-depression system.Two historic strong earthquakes successively occurred in the Linfen Basin:the A.D.1695 Linfen M7W1/2 and the A.D.1303 Hongdong M8 earthquakes. The research indicates that tectonic geomorphologic scarps with heights of 2.5 m±, 5.2 m± and 8 m±, respectively, present continually on these alluvial fanheads;the terraces T1 of gully around Longci are dated to be about 7 500 aB.P.; terraces with heights of 3.5 m±, 8 m±, 18 m± above the gully base, respectively.