Discussion on the Implications of Short-Term Crust Deformation Characteristics in the Northeastern Margin of Tibetan Plateau after the 2008 Wenchuan Earthquake
详细信息
- 责任者：Li Qiang (Key Laboratory of Earthquake Prediction ; Institute of Earthquake Science ; CEA ; Beijing 100036 ; China) ; Jiang Zaisen
- 刊名：Earthquake
- 出版年：2013
- 卷期：33(3)
- 关键词：地形变 ; ground deformation ; 青藏高原 ; Qinghai-Tibetan Plateau
- 页码：p.124-132
- 图表：6 illus., 1 table, 25 refs.
- 分类号：0500
- issnNo：ISSN1000-3274
- isbnNo：CN11-1893/P
摘要
Crust movement changed obviously in the northeastern margin of Tibetan Plateau zone according to GPS measurements during 2007—2009.This paper analyzed the coseimic effect and postseismic viscoelastic relaxation and afterslip effect respectively.The results show that some deformation was formed because of coseismic effect,but the postseismic viscoelastic relaxation and afterslip effect can be neglected.Some characteristics of postseismic short-term deformation can not be explained adequately by the deformation mechanics for China mainland,which belongs to multi-block system.To a large extent,the form of the characteristic of postseismic short-term deformation in the northeastern margin of Tibetan Plateau zone may be related to adjustment movement of blocks.
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