Results 101 to 110 of about 180,659 (212)
Metamorphic Reactivity Influences Amphibole Creep Behaviour
Journal of Metamorphic Geology, Volume 44, Issue 8, Page 611-632, September 2026.ABSTRACT The rheological behaviour of solid‐solution minerals may play an important role in determining how metamorphic crust accommodates deformation. Whether or not a mineral's deformation is diffusion or dislocation‐mediated depends on a range of extrinsic variables such as stress, strain rate and temperature, as well as intrinsic variables such as ...
Alix Osinchuk +2 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Condor Seamount is among the most seismically active regions on the Azores Plateau. In December 2019, an earthquake crisis occurred at the tip of the seamount, which was strongly felt on nearby islands. Two months after the peak of the crisis, we deployed a local network of five ocean‐bottom seismometers around the seamount, recording ...
Yingchen Liu +3 more
wiley +1 more source
Origin of Long‐Wavelength Variations in Crustal Thickness on Rocky Planets
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Long‐wavelength crustal thickness variations are observed on telluric planets, particularly on Mars and the Moon whereas Mercury appears to lack such variations. They may stem from two early‐stage positive feedback mechanisms that can emerge in stagnant‐lid planets.
Valentin Bonnet Gibet, Chloé Michaut
wiley +1 more source
Water in Hawaiian peridotite minerals: A case for a dry metasomatized oceanic mantle lithosphere
Geochemistry, Geophysics, Geosystems, 2015 The distribution of water concentrations in the oceanic upper mantle has drastic influence on its melting, rheology, and electrical and thermal conductivities and yet is primarily known indirectly from analyses of OIB and MORB.
Anne H. Peslier, Michael Bizimis
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High Melt Fraction Induced by the Dehydration Melting Near the 410‐km Discontinuity
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract The water‐rich mantle transition zone, coupled with the low water storage capacity of the upper mantle, suggests that dehydration melting occurs just above the mantle transition zone near the 410‐km discontinuity. However, the melt fraction produced by the dehydration melting process remains poorly constrained.
Juan Chen +5 more
wiley +1 more source
Competing Effects of Elastic Heterogeneity and Viscous Flow on Interseismic Coupling at Cascadia
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Interseismic coupling maps are important tools for estimating future earthquake hazard at subduction zones. Often interseismic coupling is estimated from surface velocities using a homogeneous elastic Earth model. However, inversions that incorporate viscoelastic mantle flow or elastic heterogeneity show that each can change the spatial ...
E. M. Sherrill +2 more
wiley +1 more source
Geochemistry, Geophysics, GeosystemsMineral phase transitions can either hinder or accelerate mantle flow. In the present day, the formation of the bridgmanite + ferropericlase assemblage from ringwoodite at 660 km depth has been found to cause weak and intermittent layering of mantle ...
Ranpeng Li +4 more
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Rheology of the mantle and tectonics of the oceanic lithospheric plates
Izvestiya, Physics of the Solid Earth, 2012 The modern concepts of the rheology of viscous mantle and brittle lithosphere, as well as the results of the numerical experiments on the processes in a heated layer with a viscosity dependent on pressure, temperature, and shear stress, are reviewed. These dependences are inferred from the laboratory studies of olivine and measurements of postglacial ...
openaire +2 more sources
Frontiers in Earth ScienceUnderstanding the formation of new subduction zones is important because they have been proposed as the main driving mechanism for plate tectonics and they are crucial for geochemical cycles on Earth.
Sandrine Ritter +3 more
doaj +1 more source