Core‐mantle boundary topography and whole‐mantle convection
- 1 July 1989
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 16 (7) , 621-624
- https://doi.org/10.1029/gl016i007p00621
Abstract
The seismically observed topography on the core‐mantle boundary (CMB) and the velocities of the surface tectonic plates together constitute important observational constraints on viscous flow models of the Earth's mantle. We show here that the CMB deflections inferred by Morelli and Dziewonski (1987) may be explained in terms of a simple model of whole‐mantle convection and in the process we provide a new method for inferring the penetration depths of subducted slabs.Keywords
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