Results 61 to 70 of about 610 (134)

Effect of water on seismic attenuation of the upper mantle: The origin of the sharp lithosphere-asthenosphere boundary. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Liu C   +11 more
europepmc   +1 more source

Mantle Dynamics of the Long‐Lived Middle Yangtze Basaltic Field: Insight From a Combined Geochemical and Numerical Modeling Approach

open access: yesGeochemistry, Geophysics, Geosystems
Melting for the generation of intracontinental diffuse basaltic fields is generally ascribed to the effects from lithospheric dynamic processes, but how the asthenospheric dynamics influence the overlying lithosphere remains poorly known.
Hong‐Kun Dai   +2 more
doaj   +1 more source

Insights on Upper Mantle Melting, Rheology, and Anelastic Behavior From Seismic Shear Wave Tomography

open access: yesGeochemistry, Geophysics, Geosystems, 2018
In seismic tomography we map the wave speed structure inside the Earth, but we ultimately seek to interpret those images in terms of physical parameters.
Laura Cobden   +2 more
doaj   +1 more source

Delamination Magmatism in Eastern Anatolia: A Geochemical Perspective

open access: yesGeochemistry, Geophysics, Geosystems
The Sr‐Nd‐Hf‐Pb isotope geochemistry of the Late Miocene Tunceli Volcanics suggests that they are the products of mixed asthenospheric and lithospheric mantle melts.
Alican Aktağ   +3 more
doaj   +1 more source

Lithospheric Structure Above the Northern Appalachian Anomaly: Initial Results From the NEST Array

open access: yesGeophysical Research Letters
Seismic tomography observations show a low‐velocity feature in the upper mantle beneath eastern North America known as the Northern Appalachian Anomaly (NAA).
Kimberly Espinal   +3 more
doaj   +1 more source

Heterogeneous rheology controlled postseismic deformation of the 2011 Tohoku‐Oki earthquake

open access: yesGeophysical Research Letters, 2016
Using two‐dimensional finite element modeling, we reproduced the observed postseismic deformation of the 2011 Tohoku‐Oki earthquake. Our model, which accounts for the lithosphere‐asthenosphere boundary and weak zones beneath volcanoes, was able to ...
Jun Muto   +6 more
doaj   +1 more source

Optimal resolution of Earth’s shallow conductivity structure for predicting tidal-induced magnetic fields at geomagnetic satellite altitudes

open access: yesEarth, Planets and Space
Geomagnetic satellites provide a unique opportunity to measure tidal-induced magnetic fields with exceptional accuracy and extensive spatial coverage. Recent studies have demonstrated that these satellite-detected signals are sensitive to the lithosphere-
Yu Gu   +7 more
doaj   +1 more source

Spatiotemporal Evolution of Volcanism in the Black Rock Desert Volcanic Field, Utah, and Its Migration Relative to the Colorado Plateau

open access: yesGeochemistry, Geophysics, Geosystems
In the southwest USA, the Colorado Plateau is encircled by Late Cenozoic volcanic fields, most of which have eruptive histories that are marginally constrained.
Brian R. Jicha   +2 more
doaj   +1 more source

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