The Earth's mantle is undergoing subsolidus thermal convection, driven by internal radiogenic heat sources and heat conducted from the outer core. Seismic tomographic images reveal a large-scale pattern of convection in the upper mantle compatible with surface plate motions, demonstrating the central ...
MANTLE CONVECTION AND PLUMESMantle convection and plumes The term "mantle convection" refers to the slow, but organized, subsolidus creeping motion in the mantle, driven by buoyancy forces. These forces arise primarily because of thermal expansion and contraction associated with horizontal tem... P ...
Earth thermal histories based on two-layer and whole-mantle parameterized convection models have been explored to determine the influence of the mode of mantle convection on the content and distribution of mantle radioactive heat sources and on the temperatures and heat transfer properties of the mant...
The range of Rayleigh numbers accessible to 2-dimensional numerical models of mantle convection has been increased, by almost two orders of magnitude, through the use of high resolution numerical grids with up to 200 intervals in each of the horizontal and vertical directions. The range of Rayleig...
aCurrents in Earth’s mantle called convection currents transfer heat in Earth’s interior. It is thought that this transfer of heat energy moves plates. 潮流在地球的披风叫的对流调动热在地球的内部。 它被认为热能这调动移动板材。[translate]
Lifting the cover of the cauldron: convection in hot planets. Geochem. Geophys. Geosyst. 15, 4617–4630 (2014). Article ADS Google Scholar Labrosse, S. Hotspots, mantle plumes and core heat loss. Earth Planet. Sci. Lett. 199, 147–156 (2002). Article ADS CAS Google Scholar Choblet...
The influence of internal heat sources on mantle convection is investigated using numerical calculations of 2-D thermal convection in an infinite Prandtl n... T Bryan,O Peter - 《Geophysical Journal International》 被引量: 21发表: 2010年 Enclosed Buoyant Convection With Internal Heat Generation Unde...
Magmain the Earth's mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from the naturalradioactive decayof elements. The...
(depending on the speed of heating and quantity of syrup used) the biscuit halves will have been driven apart by the convection currents. Convection currents in the mantle were thought, for many years, to be solely responsible for plate tectonic movements, with the movement taking rocks down ...
On the interaction of two scales of convection in the mantle A system in which convection takes place in the upper mantle on two distinct horizontal length scales is proposed. This is consistent with the existence of... FM Richter,B Parsons - 《Journal of Geophysical Research》 被引量: 95发...