Results 81 to 90 of about 523,525 (211)

Crust-mantle decoupling revealed by seismic velocity anisotropy beneath Syowa Station, Antarctica

Antarctic Record, 1997
We analyzed shear wave splittings in the crust beneath Syowa Station, using Moho converted Ps waves. Three set of receiver functions and stacked receiver functions from Tonga events are analyzed.
Atsuki Kubo, Masaki Kanao
doaj   +1 more source

Elastic Properties of Titan Tholins Revealed by Brillouin Spectroscopy

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Titan tholins, complex organic solids synthesized by simulating photochemical processes in Titan's atmosphere, are widely regarded as analogs to organic surface materials on the Saturnian moon. Their mechanical properties are critical for understanding the evolution of Titan's geomorphology and crustal layering.
Mark A. Johnson, Jose R. Montes‐Bojorquez, Adis Husić, Xinting Yu, Wenhao Su, Jia‐Sen Hu, Ryan Blase, Edward Patrick, Alan Whittington, Jin S. Zhang   +9 more
wiley   +1 more source

Mantle flow underneath the South China Sea revealed by seismic anisotropy. [PDF]

Natl Sci Rev, 2023
Kong F, Gao R, Gao SS, Liu KH, Ding W, Niu X, Ruan A, Tan P, Fan J, Lu S, Tong Z, Cheng L, Gong W, Zhao Y, Li J.   +14 more
europepmc   +1 more source

Physics‐Constrained Variational Autoencoder for Uncertainty Quantification of Full Waveform Inversion

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract We propose a variational autoencoder framework to directly assess uncertainties in subsurface models produced by single‐ and multiparameter full waveform inversion (FWI). The new method does not require pretraining on labeled data, thus it significantly reduces computational cost and storage requirements.
Abdelrahman Elmeliegy, Mrinal K. Sen, Arnab Dhara, Jennifer Harding, Hongkyu Yoon   +4 more
wiley   +1 more source

On the Relationship Between Oceanic Plate Speed, Tectonic Stress, and Seismic Anisotropy. [PDF]

Geophys Res Lett, 2022
Kendall E, Faccenda M, Ferreira AMG, Chang SJ.   +3 more
europepmc   +1 more source

Review on crustal anisotropy investigations beneath the Qinghai-Xizang Plateau based on azimuthal variations of receiver functions

地球与行星物理论评
Seismic anisotropy provides key information about the past and present deformations of the crust and mantle below and is crucial for understanding the interior structure of the Earth and deep dynamic processes.
Yihai Yang
doaj   +1 more source

Deep Network Reparameterized Full‐Waveform Inversion From Sequential to Simultaneous Sources With Adjoint‐State Method

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Full‐waveform inversion (FWI) relies on sequential‐source (SQ) workflows for high imaging precision, while simultaneous‐source (SML) encoding drastically accelerates computation but introduces irreversible wavenumber discontinuity artifacts in hybrid‐domain implementations.
Jinwei Fang, Jie Chen, Lutz Gross, Qingchen Zhang, Ning Wang   +4 more
wiley   +1 more source

Distinct layering in the hemispherical seismic velocity structure of Earth's upper inner core [PDF]

The existence of hemispherical variation in the Earth's inner core is well-documented, but consensus has not yet been reached on its detailed structure. The uppermost layers are a region of particular importance, as they are directly linked to the growth
Deuss, Arwen, Waszek, Lauren
core   +1 more source

On the origin of the seismic anisotropy of the lithosphere [PDF]

Geophysical Journal International, 1984
Summary. It is known that flow in the mantle can produce preferred orientation in olivine crystals with seismic anisotropy as a consequence. Flow in the subcrustal lithosphere is unlikely because of the high viscosity. Lenses of high temperature and low-viscosity (anomalous mantle) are located under the crust in many tectonically active regions, and ...
openaire   +1 more source

IGyTheM: Integrating Geodynamics With Thermodynamics Using Machine Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Achieving a comprehensive understanding of mantle convection requires integrated models that couple mantle dynamics with thermodynamic properties. Although advances in computational geodynamics have substantially improved our ability to simulate the underlying physical processes, incorporating thermodynamics into self‐consistent geodynamic ...
Qian Yuan, Paul D. Asimow, Michael Gurnis, Paula Antoshechkina, Junjie Dong   +4 more
wiley   +1 more source