Results 11 to 20 of about 180,659 (212)
Eos, Transactions American Geophysical Union, 1971 There have been two main avenues of investigation of the rheology of the mantle: theoretical and laboratory studies of the mechanical behavior of solids and direct estimates obtained by comparing geologic observations with model calculations in which rheological parameters are the principal variables.
Richard J. O'Connell +1 more
openaire +4 more sources
Multiscale Modeling of the Mantle Rheology
, 2018 Le projet de recherche Modélisation multiéchelle de la rhéologie des minéraux du manteau (dont l’acronyme anglais est RheoMan) a été lauréat de l’ERC (European research Council) suite à l’appel d’offre Advanced Grant de 2011. Il visait à proposer une nouvelle approche de la rhéologie du manteau basée sur une approche de physique des minéraux qui ...
Boioli, F. (Francesca) +12 more
core +5 more sources
Rheology of the lower mantle: a review
Progress in Earth and Planetary ScienceWe review our current understanding of the rheological properties of the lower mantle based both on materials science and geophysics points of view. We assume a simple model of the lower mantle that is made of only two minerals: bridgmanite (Br) (Mg,Fe ...
Shun-ichiro Karato +2 more
doaj +2 more sources
Shear-induced material transfer across the core-mantle boundary aided by the post-perovskite phase transition [PDF]
, 2005 We present a novel mechanical model for the extraction of outer core material upwards across the CMB into the mantle side region of D" and subsequent interaction with the post-perovskite (ppv) phase transition.
Brodholt, John +4 more
core +10 more sources
Deformation-Induced Mechanical Instabilities at the Core-Mantle Boundary [PDF]
, 2007 Post-Perovskite: The Last Mantle Phase Transition Our understanding of the core-mantle boundary (CMB) region has improved significantly over the past several years due, in part, to the discovery of the post-perovskite phase.
Petford, Nick +2 more
core +10 more sources
Antarctic upper mantle rheology
Geological Society, London, Memoirs, 2021 Abstract The Antarctic mantle and lithosphere are known to have large lateral contrasts in seismic velocity and tectonic history. These contrasts suggest differences in the response timescale of mantle flow across the continent, similar to those documented between the northeastern and southwestern upper mantle of North America.
E. R. Ivins +4 more
openaire +3 more sources
Geophysical Research Letters, 2022 Viscoelastic deformation below the Earth's elastic crust is modulated by stresses generated by both plate tectonic and earthquake cycle processes.
Brendan J. Meade +2 more
doaj +1 more source
The Impact of Climate‐Driven Lake Level Changes on Mantle Melting in Continental Rifts
Geophysical Research Letters, 2023 Climate cycles fundamentally control surface processes that affect the distribution of water and sediment, and their associated loads, across the Earth's surface.
Liang Xue +4 more
doaj +1 more source
The finite-volume method in computational rheology [PDF]
, 2012 The finite volume method (FVM) is widely used in traditional computational fluid dynamics (CFD), and many commercial CFD codes are based on this technique which is typically less demanding in computational resources than finite element methods (FEM ...
Pinho, F.T. +4 more
core +4 more sources
Nonlinear viscoplasticity in ASPECT: benchmarking and applications to subduction [PDF]
Solid Earth, 2018 ASPECT (Advanced Solver for Problems in Earth's ConvecTion) is a massively parallel finite element code originally designed for modeling thermal convection in the mantle with a Newtonian rheology. The code is characterized by modern numerical methods,
A. Glerum +6 more
doaj +1 more source