Core-mantle boundary topography and whole-mantle convection

Details Core-mantle boundary topography and whole-mantle convection Core-mantle boundary topography and whole-mantle convection

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16..621f&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, July 1989, p. 621-624.

Physics

18

Convective Heat Transfer, Earth Core, Earth Mantle, Plates (Tectonics), Divergence, Topography, Viscous Flow

Scientific paper

The seismically observed topography of the core-mantle boundary (CMB) and the velocities of the surface tectonic plates together provide important observational constraints on viscous flow models of the earth's mantle. It is shown here that the CMB deflections inferred by Morelli and Dziewonski (1987) may be explained in terms of a simple model of whole-mantle convection. A new method for inferring the penetration depths of subducted slabs is presented.

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