Crust/Lithosphere model of Song-Liao Basin


1. S-velocity 3D model of the Song-Liao Basin

Using Rayleigh wave fundamental-mode dispersion curves retrieved from earthquake waveforms and from ambient noise, a 3-D lithospheric S-velocity model for the Songliao Basin was directly inverted using a single-step joint inversion from surface waves improved from Feng & An [2010]. The model is called SLB2023.
用从地震事件和噪音格林函数提取的基阶面波频散原始观测,对Feng & An [2010]改进后的方法直接反演得到了松辽盆地三维剪切波速结构[Feng et al., 2023]。该波速结构模型简称为SLB2023。

3D S velocties, SLB2023-S, can be downloaded at / 三维剪切波速结构(SLB2023-S)可在此下载:
  • xyzv (lon, lat, depth, Vs) file/经、纬、深度、波速的xyzv文件: [download].
    Each position (x/lon, y/lat) is the center of a cell. This file is the same as Table S2 in Feng et al. [2023].

A depth (z) in the files is the depth of top boundary of a homogeneous layer. The model SLB2023-S is introduced in detail in Feng et al. [2023]. The figure below is the same as Fig. 9 of Feng et al. [2023].

Figure 1. S-velocity model along several transects. The figure is the same as Figure 9 of Feng et al. [2023]. Download PDF.

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References / 参考文献

Mei Feng, Meijian An, 2010, Lithospheric structure of the Chinese mainland determined from joint inversion of regional and teleseismic Rayleigh-wave group velocities. J. Geophys. Res., 115, B06317, doi:10.1029/2008JB005787. [PDF]

Mei Feng, Meijian An, Hesheng Hou, Taoyuan Fan, Hulin Zang, 2023, Channelised magma ascent and lithospheric zonation beneath the Songliao Basin, Northeast China, based on surface-wave tomography. Tectonophysics, 862, 229969. doi:10.1016/j.tecto.2023.229969. [Full text] [50-day free link]