Results 61 to 70 of about 1,186 (179)
Asthenospheric counterflow: a kinematic model [PDF]
Geophysical Journal International, 1979 Summary. Present-day plate motions imply that about 240 km3 of oceanic lithosphere is created by sea-floor spreading and destroyed by subduction per year. A greater volume of asthenosphere will be dragged along by plate motions. Given the fluxes generated at plate boundaries, the horizontal direction and net rate of counterflow required to maintain ...
openaire +1 more source
Investigating the Antarctic Lithosphere Through Sp Receiver Function Analysis
Geochemistry, Geophysics, GeosystemsTo better understand the lithosphere of Antarctica, we imaged its lithosphere‐asthenosphere boundary (LAB) and crust‐mantle transition using Sp receiver functions from teleseismic events analyzed at individual stations and with common conversion point ...
Sarah E. Brown, Karen M. Fischer
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The electrical structure of the central Pacific upper mantle constrained by the NoMelt experiment
Geochemistry, Geophysics, Geosystems, 2015 The NoMelt experiment imaged the mantle beneath 70 Ma Pacific seafloor with the aim of understanding the transition from the lithosphere to the underlying convecting asthenosphere.
Emily Sarafian +7 more
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Lithosphere-asthenosphere system in shield areas of North America and Europe
Annals of Geophysics, 1997 In previous papers surface dispersion data have been combined with the results of deep seismic refraction data to derive a regionalization of the lithosphere-asthenosphere system and to investigate the presence of significant heterogeneity down to depths
P. Pierri, V. Del Gaudio, G. Calcagnile
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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
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Azimuthal Variation in the Surface Wave Velocity of the Philippine Sea Plate
Journal of Marine Science and EngineeringA 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
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Geophysical Research LettersThe 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
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Geophysical Research LettersThis 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 +2 more
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Communications Earth & EnvironmentThe 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 +7 more
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The Indian Plate subducting below the Tibet Plateau is tearing apart
Communications Earth & EnvironmentThe 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
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