Results 21 to 30 of about 24,714 (224)
Deep Water Cycling and the Multi‐Stage Cooling of the Earth
Geochemistry, Geophysics, Geosystems, 2020 Paleo‐temperature data indicates that the Earth's mantle has not cooled at a constant rate. The data show slow cooling from 3.8 to 2.5 Ga followed by more rapid cooling until the present.
J. Seales, A. Lenardic
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Burying Earth's Primitive Mantle in the Slab Graveyard
Geochemistry, Geophysics, Geosystems, 2021 The evolution of mantle composition can be viewed as a process of destruction whereby the initial chemical state is overprinted and reworked with time.
T. D. Jones, N. Sime, P. E. van Keken
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A benchmark study on mantle convection in a 3-D spherical shell using CitcomS [PDF]
, 2008 As high-performance computing facilities and sophisticated modeling software become available, modeling mantle convection in a three-dimensional (3-D) spherical shell geometry with realistic physical parameters and processes becomes increasingly feasible.
Gurnis, Michael +4 more
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Influence of the asthenosphere on earth dynamics and evolution
Scientific Reports, 2023 The existence of a thin, weak asthenospheric layer beneath Earth’s lithospheric plates is consistent with existing geological and geophysical constraints, including Pleistocene glacio-isostatic adjustment, modeling of gravity anomalies, studies of ...
Lawrence Cathles +5 more
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A Role for Subducted Oceanic Crust in Generating the Depleted Mid‐Ocean Ridge Basalt Mantle
Geochemistry, Geophysics, Geosystems, 2020 The composition of Earth's mantle, continental crust, and oceanic crust continuously evolve in response to the dynamic forces of plate tectonics and mantle convection.
Jonathan M. Tucker +3 more
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Non‐adiabaticity in mantle convection [PDF]
Geophysical Research Letters, 2001 Seismic observations indicate that Earth's lower mantle is homogeneous as revealed by smooth depth variations of the bulk sound velocity and Bullen's inhomogeneity parameter η being close to one. Here we show with 3D spherical convection simulations that it should also be non‐adiabatic because a significant proportion of mantle heat sources is internal.
Bunge, H.-P., Ricard, Y., Matas, J.
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Onset of solid-state mantle convection and mixing during magma ocean solidification [PDF]
, 2016 ©2017. American Geophysical UnionThe energy sources involved in the early stages of the formation of terrestrial bodies can induce partial or even complete melting of the mantle, leading to the emergence of magma oceans. The fractional crystallization of
Breuer, Doris +5 more
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On the predictability limit of convection models of the Earth's mantle
Geochemistry, Geophysics, Geosystems, 2014 Reconstructing convective flow in the Earth's mantle is a crucial issue for a diversity of disciplines, from seismology to sedimentology. The common and fundamental limitation of these reconstructions based on geodynamic modeling is the unknown initial ...
Léa Bello +3 more
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Exoplanet interiors and habitability [PDF]
, 2019 More than 1000 exoplanets with a radius smaller than twice that of the Earth are currently known, mainly thanks to space missions dedicated to the search of exoplanets.
Hoolst, Tim Van +2 more
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, 2005 A series of numerical simulations of thermal convection of Boussinesq fluid with infinite Prandtl number, with Rayleigh number $10^7$, and with the strongly temperature- and depth- dependent viscosity in a three-dimensional spherical shell is carried out
Akira Kageyama +38 more
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