• 责任者：Wang Xingchen (Institute of Geophysics ; China Earthquake Administration ; Beijing 100081 ; China) ; Ding Zhifeng
• 刊名：Chinese Journal of Geophysics
• 出版年：2013
• 卷期：56(11)
• 关键词：岩石圈 ; lithosphere ; 华北地台 ; North China Platform
• 页码：p.3828-3836
• 图表：5 illus., 43 refs.
• 分类号：0400
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

     A temporary seismic array was established by Institute of Geophysics, China Earthquake Administration in North China from Oct. 2006 to Sep. 2009 using 250 portable broadband instruments. We chose a profile inside the array, from Tanghai through Sanhe, Beijing, Zhangjiakou to Shangdu, to study the lithospheric structure beneath North China. We used 191 teleseismie events recorded by 49 stations to calculate S receiver functions, and then used the common conversion point stacking method to obtain a detailed lithospheric structure beneath the profile. The Moho and lithosphere-asthenosphere boundary （LAB） were imaged clearly. The crustal thickness decreases from west to east along the profile, it decreases from 42 km to 30 km. The lithospheric thickness decreases from 100 km to 70 km in the western part of North China Craton and varies from 60 km to 80 km beneath the central part and eastern part of North China Craton. The results show that the lithosphere experienced significant amount of thinning. Combined with the other geophysical results, we suggest that the thermal erosion caused the thinning of the lithosphere beneath the eastern part of North China Craton.