Results 131 to 140 of about 22,070 (265)

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

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

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

Impact of global seismicity on sea level change assessment

, 2005
We analyze the effect of seismic activity on sealevel variations, by computing the time-dependent vertical crustal movement and geoid change due to coseismic deformations and postseismic relaxation effects.
Melini, D., Piersanti, A.
core   +1 more source

Postseismic viscoelastic deformation and stress. Part 2: Stress theory and computation; dependence of displacement, strain, and stress on fault parameters [PDF]

A viscoelastic model for deformation and stress associated with earthquakes is reported. The model consists of a rectangular dislocation (strike slip fault) in a viscoelastic layer (lithosphere) lying over a viscoelastic half space (asthenosphere).
Cohen, S. C.
core   +1 more source

Seismic and isotopic evidence for depth-dependent mantle sources of intraplate basalts from Eastern China

Communications Earth & Environment
The origin of intraplate basalts remains controversial, despite numerous isotope and seismic studies. Here we employ thermodynamic modeling with MAGEMin to integrate the Sr-Nd-Hf isotopes of basaltic volcanics with the seismic velocities of their mantle ...
Zongpeng Yang, Tong Hou, Roman Botcharnikov, Evangelos Moulas, Stefan Weyer, Meng Wang, Stephan Buhre, Zhaochong Zhang   +7 more
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Postseismic surface deformations due to lithospheric and asthenospheric viscoelasticity [PDF]

A model is proposed for post seismic surface deformations attributing them to lithospheric and asthenospheric viscoelasticity. The model predicts that the deformations due to lithospheric viscoelasticity depend on the ratio of the effective shear modulus
Cohen, S. C.
core   +1 more source

Mechanisms of crustal deformation in the western US [PDF]

The deformation processes in the western United States were studied, considering both deterministic models and random or statistical models. The role of the intracrustal delamination and mechanisms of crustal thinning were also examined.
Turcotte, Donald L.
core   +1 more source

Studies of oceanic tectonics based on GEOS-3 satellite altimetry [PDF]

Using statistical analysis, geoidal admittance (the relationship between the ocean geoid and seafloor topography) obtained from GEOS-3 altimetry was compared to various model admittances.
Kaula, W. M., Poehls, K. A., Sandwell, D., Schubert, G.   +3 more
core   +1 more source

The Indian Plate subducting below the Tibet Plateau is tearing apart

Communications Earth & Environment
The first-order configuration of the Himalayan orogen is defined by northward motion of the Indian plate, whether directly underplating Tibetan crust or subducting beneath a mantle wedge.
Lin Liu, Danian Shi, Simon L. Klemperer
doaj   +1 more source