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Effect of plate bending on the Urey ratio and the thermal evolution of the mantle

Davies, Geoffrey

Description

The bending of tectonic plates as they subduct causes resistance to plate motions and mantle convection. It has been proposed that this effect could keep plate velocities relatively constant with time, and it would imply relatively high mantle temperatures through much of Earth history and relatively rapid cooling at present. It also implies a low Urey ratio, compatible with that inferred from cosmochemistry. Here it is confirmed that bending resistance only plays a significant role if plate...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/29547
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2009.08.038

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