Results 101 to 110 of about 1,865,929 (246)
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.Abstract The Armenian Highlands, a tectonically active segment of the Arabia‐Eurasia collision zone, exhibit widespread Quaternary volcanism, rapid uplift, and intense seismicity. However, the lithospheric processes driving these phenomena remain poorly understood.
Ivan Koulakov +5 more
wiley +1 more source
A Magma Accretion Model for the Formation of Oceanic Lithosphere: Implications for Global Heat Loss
International Journal of Geophysics, 2010 A magma accretion model of oceanic lithosphere is proposed and its implications for understanding its thermal field examined. The new model (designated Variable Basal Accretion—VBA) assumes existence of lateral variations in magma accretion rates and ...
Valiya M. Hamza +2 more
doaj +1 more source
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. +2 more
core +1 more source
The lithosphere and asthenosphere of the Iceland hotspot from surface waves [PDF]
, 2009 1-D models were calculated for the velocity of shear waves, polarized vertically (SV) and horizontally (SH) from dispersed Rayleigh and Love surface waves.
Allen +86 more
core +1 more source
The petrological control on the lithosphere-asthenosphere boundary (LAB) beneath ocean basins
Earth-Science Reviews, 2018 The plate tectonics theory established ~ 50 years ago has formed a solid framework for understanding how the earth works on all scales. In this theory, movement of the tectonic plates relative to the subjacent asthenosphere is one of the fundamental ...
Y. Niu, D. Green
semanticscholar +1 more source
Evolving force balance during incipient subduction [PDF]
, 2004 Nearly half of all active subduction zones initiated during the Cenozoic. All subduction zones associated with active back arc extension have initiated since the Eocene, hinting that back arc extension may be intimately associated with an interval ...
Gurnis, Michael, Hall, Chad, Lavier, Luc
core +1 more source
Distribution of Bouguer gravity anomaly and crust and upper mantle in the Antarctic region
Antarctic Record, 1986 Bouguer gravity anomaly south of 45°S was derived from the newly provided data of free-air anomaly and topography, and its implications in the crust and upper mantle structure of the land and its marginal ocean area were discussed from the viewpoint of ...
Takeshi Matsumoto +2 more
doaj +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. +3 more
core +1 more source
Geochemistry, 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