Saturday, March 06, 2004

Earth, Mantle convection

Convection of mantle material, at velocities of centimetres per year, has been suggested as the driving force for plate motions, and it is natural to look for some expression of a system of mantle convection currents in the gravitational field. In a thermally driven convecting system, heated mantle material of lower density rises, moves horizontally dragging the


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