中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A rheological model of post-seismic deformation for the 2001 kunlun, china earthquake, mw 7.8

文献类型:期刊论文

作者Zhang, Chaojun1,2; Shi, Yaolin2; Ma, Li1; Lomnitz, Cinna3
刊名Geofisica internacional
出版日期2007-07-01
卷号46期号:3页码:145-154
关键词Post-seismic deformation Rheology Viscosity Kunlun earthquake
ISSN号0016-7169
通讯作者Zhang, chaojun(zcj72@hotmail.com)
英文摘要The mw7.8 kunlun earthquake of 14 november, 2001, in the northern tibetan plateau of china, was the largest event in the chinese continental area in the latest 50 years. in this paper, layered visco-elastic models are calculated using the psgrn/pscmp code, and the results are fitted to the observed post-seismic deformation. we show that a model of a surface anelastic layer of 10km thickness over an elastic lower crust cannot explain the observed amplitude of deformation. a relaxation model featuring 30km of elastic upper crust over 40km of a ductile lower crust will account for the main features of exponential attenuation of post-seismic deformation. combination of the two models, however, provides an even better fit including the fact that the deformation rate was higher in the first few weeks and slower thereafter. the viscous layer in the lower crust provides good control of the post-seismic deformation, including the long term decay of deformation over a period of months. the upper anelastic layer may contribute to the observed high deformation rate in the initial few weeks after the main earthquake. the results suggest that rheological differences may exist between the materials on either side of the kunlun fault.
WOS关键词28 JUNE 1992 ; LANDERS EARTHQUAKE ; RELAXATION ; AFTERSLIP ; SLIP ; CALIFORNIA
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
语种英语
WOS记录号WOS:000255021900001
出版者INST GEOPHYSICS UNAM
URI标识http://www.irgrid.ac.cn/handle/1471x/2380241
专题中国科学院大学
通讯作者Zhang, Chaojun
作者单位1.China Earthquake Adm, Inst Earthquake Sci, Beijing 100036, Peoples R China
2.Grad Univ Chinese Acad Sci, Lab Computat Geodynam, Beijing 100049, Peoples R China
3.Univ Nacl Autonoma Mexico, Inst Geofis, Mexico City 04510, DF, Mexico
推荐引用方式
GB/T 7714
Zhang, Chaojun,Shi, Yaolin,Ma, Li,et al. A rheological model of post-seismic deformation for the 2001 kunlun, china earthquake, mw 7.8[J]. Geofisica internacional,2007,46(3):145-154.
APA Zhang, Chaojun,Shi, Yaolin,Ma, Li,&Lomnitz, Cinna.(2007).A rheological model of post-seismic deformation for the 2001 kunlun, china earthquake, mw 7.8.Geofisica internacional,46(3),145-154.
MLA Zhang, Chaojun,et al."A rheological model of post-seismic deformation for the 2001 kunlun, china earthquake, mw 7.8".Geofisica internacional 46.3(2007):145-154.

入库方式: iSwitch采集

来源:中国科学院大学

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。