Motion and Deformation State of the Tancheng-Lujiang Fault Zone Derived from GPS Data
详细信息
- 责任者：Liu Xiaoxia (Institute of Earthquake Science ; CEA ; Beijing 100036 ; China) ; Jiang Zaisen
- 刊名：Earthquake
- 出版年：2012
- 卷期：32(4)
- 关键词：全球定位系统 ; Global Positioning System ; 构造变形 ; tectonic deformation ; 郯庐断裂带 ; Tancheng-Lujiang Fault Zone
- 页码：p.1-10
- 图表：5 illus., 2 tables, 18 refs.
- 分类号：0300
- issnNo：ISSN1000-3274
- isbnNo：CN11-1893/P
摘要
Based on the rotation in the entire block and homogeneous strain model(REHSM),we firstly analyzed the motion and deformation features across the southern part of Tanlu fault from GPS velocity fields in period of 1999~2001,2001~2004,2004~2007 and 2007~2009. The results showed dextral strike-slip feature in Weifang-Tancheng segment while sinistral strike slip in Tancheng-Lujiang segment.And the deformation features perpendicular to Tanlu faults has alternated between tension and compression in different time-intervals.Then, the authors resolved the relative rigid motion of blocks around Bohai Bay to the entire Bohai area by deducting the entire rigid motion of the Bohai area.We found that Yanshan-Bohai seismic belt splits this area into two parts,the northern one moved to northwest while the other to southeast.