Results 71 to 80 of about 4,195 (236)
Geochemistry, Geophysics, GeosystemsSubduction zones are fundamental features of Earth's mantle convection and plate tectonics, but mantle flow and pressure around slabs are poorly understood because of the lack of direct observational constraints on subsurface flow.
Samuel L. Goldberg, Adam F. Holt
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HeliyonThis study examines the Rayleigh-Bénard convection model with free slip boundary conditions appropriate for the Earth's mantle in narrow and elongated cells with aspect ratios of 1:2 and 2:1, respectively.
Tania S. Khaleque +2 more
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Carbon in the Convecting Mantle [PDF]
, 2019 This chapter provides a summary of the flux of carbon through various oceanic volcanic centers such as mid-ocean ridges and intraplate settings, as well as what these fluxes indicate about the carbon content of the mantle. By reviewing methods used to measure the carbon geochemistry of basalts and then to estimate fluxes, the chapter provides insight ...
Hauri, Erik H. +7 more
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Evolving mantle convection from bottom up to top down. [PDF]
Innovation (Camb), 2022 Mitchell RN +3 more
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Transient Porosity During Fluid‐Mineral Interaction. Part 1: In Situ 4D Tomography
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.Abstract Fluid‐induced mineral replacement reactions play a key role in controlling porosity generation and permeability evolution in geologic systems. However, the dynamic feedback between pore structure development and fluid transport remains poorly quantified. This study investigates the spatiotemporal evolution of reaction‐induced pore space in the
Hamed Amiri +7 more
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Edge‐modulated stagnant‐lid convection and volcanic passive margins
Geochemistry, Geophysics, Geosystems, 2007 The initial oceanic crust along volcanic passive margins is a factor of ∼3 greater than that of typical oceanic crust (20 versus 6–7 km). Convection driven by the edge of the continental lithosphere may cause mantle material to circulate through the ...
Norman H. Sleep
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Generalizing scaling laws for mantle convection with mixed heating [PDF]
, 2023 Amy L. Ferrick, Jun Korenaga
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Impact and Crystallization Modeling of the Sudbury Basin and Its Implications for a Hadean Crust
Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.Abstract The 1.85 Ga Sudbury Structure hosts Earth's largest and best‐preserved impact‐induced melt sheet, the Sudbury Igneous Complex (SIC), which crystallized into distinct noritic, gabbroic, and granophyric layers. We conduct impact simulations with iSALE‐2D and crystallization modeling using alphaMELTS 2 to track the formation and evolution of the ...
Nicolas B. Litza +10 more
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Lunar Crustal Formation by Melt Migration and Differentiation Within a Stagnant Lid
Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.Abstract The lunar anorthosite highlands represent the Moon's primary crust, which formed during the solidification of a magma ocean following the Moon‐forming giant impact. However, the canonical model of anorthite flotation in the crystallizing magma ocean often struggles to reproduce the long > ${ >} $200 Myr solidification timescale required by the
K. H. Dodds, C. Michaut, J. A. Neufeld
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Геодинамика и тектонофизика, 2015 The paper presents the first tectonophysical reconstruction of initial divisibility of the protolithosphere as a result of convection in the cooling primitive mantle. Initial division of the protolithosphere into separate masses, i.e.
Semen I. Sherman
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