Lithospheric SH Wave Velocity Structure Beneath the Northeastern Tibetan Plateau From Love Wave Tomography

2019 ◽  
Vol 124 (9) ◽  
pp. 9682-9693 ◽  
Author(s):  
Yuanyuan V. Fu ◽  
Lun Li ◽  
Zhuo Xiao
Keyword(s):  
Tibetan Plateau ◽  
Wave Velocity ◽  
Love Wave ◽  
Velocity Structure ◽  
Sh Wave ◽  
Northeastern Tibetan Plateau ◽  
Wave Tomography

Crust and Upper Mantle S-Wave Velocity Structure Across Northeastern Tibetan Plateau and Ordos Block

2005 ◽  
Vol 48 (2) ◽  
pp. 369-379 ◽  
Author(s):  
Jiu-Hui CHEN ◽  
Qi-Yuan LIU ◽  
Shun-Cheng LI ◽  
Biao GUO ◽  
Yuan-Gen LAI
Keyword(s):  
Tibetan Plateau ◽  
Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
S Wave ◽  
Crust And Upper Mantle ◽  
Ordos Block ◽  
Northeastern Tibetan Plateau

Ambient noise Love wave tomography in the eastern margin of the Tibetan plateau

2010 ◽  
Vol 491 (1-4) ◽  
pp. 194-204 ◽  
Author(s):  
Hongyi Li ◽  
Wei Su ◽  
Chun-Yong Wang ◽  
Zhongxian Huang ◽  
Zhiyong Lv
Keyword(s):  
Tibetan Plateau ◽  
Love Wave ◽  
Ambient Noise ◽  
The Tibetan Plateau ◽  
Eastern Margin ◽  
Wave Tomography

Surface-Wave Tomography of Eastern and Central Tibet from Two-Plane-Wave Inversion: Rayleigh-Wave and Love-Wave Phase Velocity Maps

2020 ◽  
Vol 110 (3) ◽  
pp. 1359-1371
Author(s):  
Lun Li ◽  
Yuanyuan V. Fu
Keyword(s):  
Surface Wave ◽  
Tibetan Plateau ◽  
Phase Velocity ◽  
Rayleigh Wave ◽  
Love Wave ◽  
The Tibetan Plateau ◽  
Surface Wave Tomography ◽  
Wave Phase ◽  
Wave Phase Velocity ◽  
Wave Tomography

ABSTRACT An understanding of mantle dynamics occurring beneath the Tibetan plateau requires a detailed image of its seismic velocity and anisotropic structure. Surface waves at long periods (>50  s) could provide such critical information. Though Rayleigh-wave phase velocity maps have been constructed in the Tibetan regions using ambient-noise tomography (ANT) and regional earthquake surface-wave tomography, Love-wave phase velocity maps, especially those at longer periods (>50  s), are rare. In this study, two-plane-wave teleseismic surface-wave tomography is applied to develop 2D Rayleigh-wave and Love-wave phase velocity maps at periods between 20 and 143 s across eastern and central Tibet and its surroundings using four temporary broadband seismic experiments. These phase velocity maps share similar patterns and show high consistency with those previously obtained from ANT at overlapping periods (20–50 s), whereas our phase velocity maps carry useful information at longer periods (50–143 s). Prominent slow velocity is imaged at periods of 20–143 s beneath the interior of the Tibetan plateau (i.e., the Songpan–Ganzi terrane, the Qiangtang terrane, and the Lhasa terrane), implying the existence of thick Tibetan crust along with warm and weak Tibetan lithosphere. In contrast, the dispersal of fast velocity anomalies coincides with mechanically strong, cold tectonic blocks, such as the Sichuan basin and the Qaidam basin. These phase velocity maps could be used to construct 3D shear-wave velocity and radial seismic anisotropy models of the crust and upper mantle down to 250 km across the eastern and central Tibetan plateau.

Crustal P wave velocity structure beneath the SE margin of the Tibetan Plateau from Deep Seismic Sounding results

2019 ◽  
Vol 755 ◽  
pp. 109-126
Author(s):  
Jiyan Lin ◽  
Walter D. Mooney ◽  
Fuyun Wang ◽  
Yonghong Duan ◽  
Xiaofeng Tian ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Wave Velocity ◽  
Velocity Structure ◽  
P Wave ◽  
Deep Seismic Sounding ◽  
The Tibetan Plateau ◽  
P Wave Velocity ◽  
Seismic Sounding ◽  
P Wave Velocity Structure
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