A review of large low shear velocity provinces and ultra low velocity zones

AK McNamara - Tectonophysics, 2019 - Elsevier
Seismic tomography reveals 2 extensive regions in the lowermost mantle, beneath Africa
and the Pacific, that exhibit lower-than-average seismic wave speeds. These regions have …

Advances in map** lowermost mantle convective flow with seismic anisotropy observations

J Wolf, M Li, MD Long, E Garnero - Reviews of Geophysics, 2024 - Wiley Online Library
Convective flow in the deep mantle controls Earth's dynamic evolution, influences plate
tectonics, and has shaped Earth's current surface features. Present and past convection …

Seismic structure of the upper mantle beneath eastern Asia from full waveform seismic tomography

K Tao, SP Grand, F Niu - Geochemistry, Geophysics …, 2018 - Wiley Online Library
To better understand the subsurface behavior of subducting slabs and their relation to the
tectonic evolution of the overriding plate, we conduct a full waveform inversion on a large …

Global adjoint tomography—model GLAD-M25

W Lei, Y Ruan, E Bozdağ, D Peter… - Geophysical Journal …, 2020 - academic.oup.com
Building on global adjoint tomography model GLAD-M15, we present transversely isotropic
global model GLAD-M25, which is the result of 10 quasi-Newton tomographic iterations with …

Global shear speed structure of the upper mantle and transition zone

AJ Schaeffer, S Lebedev - Geophysical Journal International, 2013 - academic.oup.com
The rapid expansion of broad-band seismic networks over the last decade has paved the
way for a new generation of global tomographic models. Significantly improved resolution of …

S40RTS: a degree-40 shear-velocity model for the mantle from new Rayleigh wave dispersion, teleseismic traveltime and normal-mode splitting function …

J Ritsema, A Deuss, HJ Van Heijst… - Geophysical Journal …, 2011 - academic.oup.com
We have developed model S40RTS of shear-velocity variation in Earth's mantle using a new
collection of Rayleigh wave phase velocity, teleseismic body-wave traveltime and normal …

Imaging deep-mantle plumbing beneath La Réunion and Comores hot spots: Vertical plume conduits and horizontal ponding zones

M Dongmo Wamba, JP Montagner, B Romanowicz - Science Advances, 2023 - science.org
Whether the two large low–shear velocity provinces (LLSVPs) at the base of Earth's mantle
are wide compact structures extending thousands of kilometers upward or bundles of distinct …

Global adjoint tomography: first-generation model

E Bozdağ, D Peter, M Lefebvre… - … Supplements to the …, 2016 - academic.oup.com
We present the first-generation global tomographic model constructed based on adjoint
tomography, an iterative full-waveform inversion technique. Synthetic seismograms were …

Whole-mantle radially anisotropic shear velocity structure from spectral-element waveform tomography

SW French, BA Romanowicz - Geophysical Journal International, 2014 - academic.oup.com
The radially anisotropic shear velocity structure of the Earth's mantle provides a critical
window on the interior dynamics of the planet, with isotropic variations that are interpreted in …

Lithospheric foundering and underthrusting imaged beneath Tibet

M Chen, F Niu, J Tromp, A Lenardic, CTA Lee… - Nature …, 2017 - nature.com
Long-standing debates exist over the timing and mechanism of uplift of the Tibetan Plateau
and, more specifically, over the connection between lithospheric evolution and surface …