Deep Velocity Structure of Southeast Asia from Rayleigh Wave Group Velocities: 3D Isotropic Model of the S-Wave Velocity Distribution in the Upper Mantle

Whole‐Mantle Tomography of Southeast Asia: New Insight Into Plumes and Slabs

“…Regarding the upper mantle structure, detailed studies have been conducted by mainly using P wave velocity ( Vp ) regional tomography (Hua et al., 2022; Z. Huang et al., 2015; Li & van der Hilst, 2010; H. Lu et al., 2022; Shi et al., 2020; Wang et al., 2022; Wei et al., 2012, 2022; Widiyantoro et al., 2011; Zenonos et al., 2019). Regional tomographic studies using surface‐wave and S wave data have been also conducted, but the resolution of the obtained S wave velocity ( Vs ) models is lower than that of the Vp models (Filippova & Solovey, 2021; Lebedev & Nolet, 2003; Legendre et al., 2015; Zenonos et al., 2019). Recently, Wehner et al.…”

“…Seismic tomography is a powerful tool to obtain detailed 3‐D images of the subsurface structure. Tomographic studies targeting SE Asia have been actively made, but most of them focused on the upper mantle structure (Filippova & Solovey, 2021; Hua et al., 2022; Z. Huang et al., 2015; Lebedev & Nolet, 2003; Legendre et al., 2015; Li & van der Hilst, 2010; Li et al., 2006; Shi et al., 2020; Wehner et al., 2022; Wei et al., 2012; Widiyantoro et al., 2011; Zenonos et al., 2019). The lower mantle structure beneath SE Asia has been mainly studied by global seismic tomography (e.g., Hall & Spakman, 2015).…”

“…Lu et al, 2022;Shi et al, 2020;Wang et al, 2022;Wei et al, 2012Wei et al, , 2022Widiyantoro et al, 2011;Zenonos et al, 2019). Regional tomographic studies using surface-wave and S wave data have been also conducted, but the resolution of the obtained S wave velocity (Vs) models is lower than that of the Vp models (Filippova & Solovey, 2021;Lebedev & Nolet, 2003;Legendre et al, 2015;Zenonos et al, 2019). Recently, Wehner et al (2022) determined a 3-D Vs model under SE Asia using full waveform tomography.…”