Constraints on S-wave velocity structures of the lithosphere in mainland China from broadband ambient noise tomography
作者: Jie PengJinli HuangZhikun LiuKang Xing
作者单位: 1School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China
刊名: Physics of the Earth and Planetary Interiors, 2020, Vol.299
来源数据库: Elsevier Journal
DOI: 10.1016/j.pepi.2019.106406
关键词: Ambient noise tomographyS-wave velocity structures of the lithosphereEastern ChinaTanlu fault belt
原始语种摘要: Abstract(#br)In this study, a 3-D S-wave velocity model of the lithosphere in mainland China down to 150 km depth was determined from ambient noise data. First, we collected 2-year continuous waveforms recorded by 1031 broadband stations of the China Regional Seismic Network and NECESSArray. Then, by applying the procedures of noise cross-correlation and time-frequency domain phase-weighted stacking, we obtained the interstation empirical Green's functions of Rayleigh waves. We measured the group and phase velocity dispersions at periods of 5–125 s from the EGFs and inverted both group and phase velocities for the S-wave velocity model. Our model revealed that the lithospheric thickness in the northern Songliao basin is ~70–110 km. A weak high-velocity anomaly that is discontinuous in the...
全文获取路径: Elsevier  (合作)
影响因子:2.383 (2012)

  • velocity 速度
  • lithosphere 岩石圈
  • noise 噪声
  • tomography 断层x 线摄影
  • China 中国
  • mainland 大陆
  • broadband 宽频带
  • Eastern 东方牌手表
  • fault 断层
  • ambient 外界的