Results 81 to 90 of about 180,659 (212)

Intraslab stress heterogeneity and continental mantle faulting revealed by the 2006 Pingtung offshore earthquake doublet

Communications Earth & Environment
The impact of lithospheric rheology and subduction dynamics on intraslab stress and earthquake characteristics, as well as the cause of the scarcity of continental mantle earthquakes remain debated.
Wan-Lin Hu, Eh Tan, Ryo Okuwaki, Yuji Yagi   +3 more
doaj   +1 more source

Reproducing past subduction and mantle flow using high-resolution global convection models

Earth and Planetary Physics, 2018
Plate subduction drives both the internal convection and the surface geology of the solid Earth. Despite the rapid increase of computational power, it remains challenging for geodynamic models to reproduce the history of Earth-like subduction and ...
JiaShun Hu, LiJun Liu, Quan Zhou
doaj   +1 more source

Reconciling Coupled Thermal‐Water Evolution Models of Earth With Observations Through Variable Regassing Efficiency

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Reconciling Earth's thermal evolution with geochemical observations remains a fundamental challenge, as parameterized convection models typically predict high present‐day Urey ratios inconsistent with geochemical estimates. Previous studies propose that if mantle water concentration varies inversely to mantle temperature, it would weaken the ...
Alexander B. Thames, Bradford J. Foley
wiley   +1 more source

Mantle pseudo-isochrons revisited [PDF]

The 2.0 Ga pseudo-isochron age inferred from the mid-ocean ridge basalt 207Pb/204Pb against 206Pb/204Pb diagram is reexamined on the basis of a statistical box model of mantle processes.
Rudge, J. F.
core   +1 more source

MODELING OF MOVING DEFORMABLE CONTINENTS BY ACTIVE TRACERS: CLOSING AND OPENING OF OCEANS, RECIRCULATION OF OCEANIC CRUST

Геодинамика и тектонофизика, 2018
The evolution of the ‘mantle – moving deformable continents’ system has been studied by numerical experiments. The continents move self-consistently with the mantle flows of thermo-compositional convection.
A. M. Bobrov, A. A. Baranov
doaj   +1 more source

Influence of Surface Processes on Intrarift Fault Displacement: 1.38 Million Years of Fault Slip Behavior in the Lake Malawi (Nyasa) Rift

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Surface processes, including hydroclimate variations, affect crustal deformation and fault behavior. These controls are especially important for intrarift faults in continental rift systems, which accommodate substantial strain while experiencing large hydrological load variations beneath rift lakes.
J. M. Greenlee, C. A. Scholz, L. Xue, D. J. Shillington, R. Moucha, P. R. N. Chindandali   +5 more
wiley   +1 more source

Mapping Global GNSS Vertical Velocities to Solid Earth Figure Change

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The Earth's figure evolves in response to glacial isostatic adjustment (GIA), surface‐mass redistribution, and rotational and mantle‐driven processes. While temporal changes in the geoid's flattening are monitored through low‐degree gravity field harmonics, the geometric response of the solid Earth can be assessed independently from GNSS ...
C. Kotsakis
wiley   +1 more source

Toward a Self‐Consistent Characterization of Lithospheric Plates Using Full‐Spectrum Viscoelasticity

AGU Advances, 2020
Determining the thickness of the lithosphere in any given setting combines uncertainty in both the observational method and laboratory‐derived understanding of mantle rheology. The many observational and modeling criteria across geophysical subfields for
Harriet C. P. Lau, Benjamin K. Holtzman, Christopher Havlin   +2 more
doaj   +1 more source

The Impact of Double Subduction on Plate Velocity and Euler Pole Shifts: Insights From Spherical Subduction Models

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Same‐dip double subduction (SDDS), in which two parallel slabs dip in the same direction, has been linked to accelerated plate motion in both modern and ancient convergent systems, such as the Late Cretaceous Africa–Eurasia system. Yet a systematic framework for quantifying how SDDS alters plate kinematics in a large‐scale spherical geometry ...
Zonglin Guo, Adam F. Holt, Derya Gürer
wiley   +1 more source

Tracking Deep Mantle Melting on Mars Using Phobos Tides

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract We study the deep internal structure and rheological state of Mars by analyzing its response to tidal forces exerted by Phobos and by introducing a melt fraction in the mantle layers. Motivated by recent seismic evidence for a basal molten layer near the base of the Martian mantle, we explore the distribution of melt within the mantle and its ...
A. Guinard, A. Fienga, A. Mémin, D. Antonangeli   +3 more
wiley   +1 more source