Results 101 to 110 of about 14,706 (253)

Thermal and mechanical structure of the upper mantle: A comparison between continental and oceanic models [PDF]

Temperature, velocity, and viscosity profiles for coupled thermal and mechanical models of the upper mantle beneath continental shields and old ocean basins show that under the continents, both tectonic plates and the asthenosphere, are thicker than they
Froidevaux, C., Schubert, G., Yuen, D. A.   +2 more
core   +1 more source

Estimation of asthenospheric deformation law for the post glacial rebound based on the deformation mechanism map of olivine

Antarctic Record, 1998
Linear deformation laws have been applied to post glacial rebound, while many speculations based on real rock samples support non-linear rheology in the upper mantle. Essential information is required to support the assumed constitutive relation.
Atsuki Kubo
doaj   +1 more source

Azimuthal Variation in the Surface Wave Velocity of the Philippine Sea Plate

Journal of Marine Science and Engineering
A study of the azimuthal variation in the surface wave fundamental-mode phase velocity is performed for the Philippine Sea Plate (PSP). This azimuthal variation has been anisotropically inverted for the PSP to determine the isotropic and anisotropic ...
Víctor Corchete
doaj   +1 more source

Kerguelen Plume Drives the Eocene Directional Change in Australian Plate Motion [PDF]

Lithosphere
Australia undergoes a directional plate motion change from westward to northward motion in the early Cenozoic that is associated with Australia/Antarctica separation.
Ingo L. Stotz, Sara Carena, Berta Vilacı́s, Jorge N. Hayek, Hans-Peter Bunge   +4 more
doaj   +1 more source

Dynamic Component of the Asthenosphere: Lateral Viscosity Variations Due To Dislocation Creep at the Base of Oceanic Plates

Geophysical Research Letters
The asthenosphere is commonly defined as an upper mantle zone with low velocities and high attenuation of seismic waves, and high electrical conductivity. These observations are usually explained by the presence of partial melt, or by a sharp contrast in
V. Patočka, H. Čížková, J. Pokorný
doaj   +1 more source

Neogene plate tectonic reconstructions and geodynamics of North Island sedimentary basins: Implications for the petroleum systems [PDF]

, 2006
Although the modern Australia-Pacific plate boundary through New Zealand is relatively straight, there have been significant changes in its geometry during the Neogene. Within the North Island sector there has been a fundamental transition from an Alpine
Furlong, Kevin P., Kamp, Peter J.J.
core   +1 more source

Postseismic viscoelastic surface deformation and stress. Part 1: Theoretical considerations, displacement and strain calculations [PDF]

A model of viscoelastic deformations associated with earthquakes is presented. A strike-slip fault is represented by a rectangular dislocation in a viscoelastic layer (lithosphere) lying over a viscoelastic half-space (asthenosphere).
Cohen, S. C.
core   +1 more source

Global imaging of the lithosphere-asthenosphere system

, 2020
E. Debayle, Yanick Ricard, S. Durand, Thomas Bodin   +3 more
openalex   +1 more source

Crustal deformation, the earthquake cycle, and models of viscoelastic flow in the asthenosphere [PDF]

, 1984
Steven C. Cohen, M. J. Kramer
openalex   +1 more source

A Mid‐Lithospheric Discontinuity Detected Beneath 155 Ma Western Pacific Seafloor Using Sp Receiver Functions

Geophysical Research Letters
This study probes the lithosphere‐asthenosphere system beneath 155 Ma Pacific seafloor using teleseismic S‐to‐p receiver functions at the Pacific Lithosphere Anisotropy and Thickness Experiment project ocean‐bottom‐seismometers. Within the lithosphere, a
K.‐X. Chen, D. W. Forsyth, K. M. Fischer   +2 more
doaj   +1 more source