Study on the Low-Velocity Discontinuity at the Depth of 170 km Beneath SSE Station in Shanghai, China

详细信息   

• 责任者：Shen Xuzhang (Lanzhou Institute of Seismology ; China Earthquake Administration ; Lanzhou 730000 ; China）
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54（3）
• 关键词：软流圈 ; asthenosphere ; 低速带 ; low-velocity zones ; 接收函数 ; receiver functions ; 上海 ; Shanghai
• 页码：p.698-705
• 图表：7 illus., 28 refs.
• 分类号：0400
• 出版序号：20120064
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

The low-velocity discontinuity at 170 km depth was determined with multiples on the receiver functions beneath the SSE station in Shanghai, China. The synthetic receiver functions calculated from full-wave field seismograms explain the observed results perfectly. This low-velocity discontinuity might result from the low velocity abnormities in asthenosphere. The result is also consistent with the result from surface-wave tomography.