Mantle plumes and their role in Earth processes
The existence of mantle plumes was first proposed in the 1970s to explain intra-plate,
hotspot volcanism, yet owing to difficulties in resolving mantle upwellings with geophysical …
hotspot volcanism, yet owing to difficulties in resolving mantle upwellings with geophysical …
Achievements and prospects of global broadband seismographic networks after 30 years of continuous geophysical observations
Global seismographic networks (GSNs) emerged during the late nineteenth and early
twentieth centuries, facilitated by seminal international developments in theory, technology …
twentieth centuries, facilitated by seminal international developments in theory, technology …
Asthenospheric low-velocity zone consistent with globally prevalent partial melting
The asthenosphere plays a fundamental role in present-day plate tectonics as its low
viscosity controls how convection in the mantle below it is expressed at the Earth's surface …
viscosity controls how convection in the mantle below it is expressed at the Earth's surface …
Moon-forming impactor as a source of Earth's basal mantle anomalies
Seismic images of Earth's interior have revealed two continent-sized anomalies with low
seismic velocities, known as the large low-velocity provinces (LLVPs), in the lowermost …
seismic velocities, known as the large low-velocity provinces (LLVPs), in the lowermost …
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 …
are wide compact structures extending thousands of kilometers upward or bundles of distinct …
Regularized elastic full-waveform inversion using deep learning
Z Zhang, T Alkhalifah - Advances in subsurface data analytics, 2022 - Elsevier
Elastic full-waveform inversion, which aims to match the waveforms of prestack seismic data,
potentially provides more accurate high-resolution reservoir characterization from seismic …
potentially provides more accurate high-resolution reservoir characterization from seismic …
3-D Bayesian variational full waveform inversion
Seismic full-waveform inversion (FWI) provides high resolution images of the subsurface by
exploiting information in the recorded seismic waveforms. This is achieved by solving a …
exploiting information in the recorded seismic waveforms. This is achieved by solving a …
[HTML][HTML] 模拟地震波传播的三维逐元并行谱元法
刘少林， 杨顶辉， 徐锡伟， 李小凡， 申文豪， 刘有山 - 地球物理学报, 2021 - html.rhhz.net
高效地震波场正演模拟对于复杂模型中地震波传播与成像研究至关重要. 本文在谱元法原理框架
内, 对已有逐元谱元法改进, 提出一种新的逐元并行谱元法求解三维地震波运动方程 …
内, 对已有逐元谱元法改进, 提出一种新的逐元并行谱元法求解三维地震波运动方程 …
[HTML][HTML] MLReal: Bridging the gap between training on synthetic data and real data applications in machine learning
Among the biggest challenges we face in utilizing neural networks trained on waveform (ie,
seismic, electromagnetic, or ultrasound) data is its application to real data. The requirement …
seismic, electromagnetic, or ultrasound) data is its application to real data. The requirement …
Deflating the LLSVPs: bundles of mantle thermochemical plumes rather than thick stagnant “piles”
A Davaille, B Romanowicz - Tectonics, 2020 - Wiley Online Library
Based on SEMUCB‐WM1 tomographic model, validated by other recent models, and fluid
mechanics constraints, we show that the large low shear velocity provinces (LLSVPs) …
mechanics constraints, we show that the large low shear velocity provinces (LLSVPs) …