MantleThermal evolutionAdiabatic compression is a key factor that exerts control over thermal convection in the compressible solid mantle of super-Earths. To discuss the effects of adiabatic compression, we present a numerical model of transient convection in the cooling mantle of a super-Earth that ...
Heat transport in the mantle is by convection and conduction is important only in boundary layers with steep temperature gradients. In the context of geomagnetism this means especially the D″ layer at the bottom of the mantle, adjacent to the core. Lattice conductivity an ......
sufficiently large, convectiondriven columnar rolls – which are nearly geostrophic and marked by small azimuthal scale – cannot have substantial nonlinear interaction with precession-driven flow that is in the form of an equatorially antisymmetric, large-scale inertial wave in the mantle frame of ...
The thermal structure beneath subduction zones plays a key role in aiding understanding of tectonic activities such as seismicity, volcanism, arc formation and genesis of back-arc basins around subduction zones. Many simulations have been made to estimate the thermal process in the mantle wedge which...
N., (1987) Mantle devolatilization and convection: impli- cations for the thermal history of the Earth. Geophys. Res. Lett., 14 (7), 737-740.M.J. Jackson and H.N. Pollack, Mantle devolatilization and convection: implications for the thermal history of the earth, Geophys. Res. Lett. ...
In subject area: Earth and Planetary Sciences The key to Earth's thermal evolution is the thermal convection system involving the mantle and core that removes heat from Earth's interior. From: Encyclopedia of Energy, 2004 About this pageSet alert ...
Our numerical models, in conjunction with geophysical and geological constraints, suggest that the data are best explained by a thermal anomaly in the upper mantle that has persisted after continental break-up. We suggest that this anomaly is related to small-scale convection that occurred during ...
Cooling histories that allow for thermal self-regulation have short reactance times relative to the decay time. Short thermal reactance times cannot lead to low Ur values, as they damp large deviations from thermal equilibrium. This, in turn, has been used to argue that mantle convection is not...
total heat flow across the core-mantle boundary (CMB) range from 5-15 TW. Most recent estimates are on the high end of this range (10-15 TW), which call into question the timing of core formation and the relative importance of therma...
A finite element computer code for the analysis of mantle convection is described. The coupled equations for creeping viscous flow and heat transfer can be solved for either a transient analysis or steady-state analysis. For transient analyses, either a control volume or a control mass approach ca...