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More Mantle Convection: Compositional Variations Above the Core-Mantle Boundary

The region just above the core-mantle boundary is thought to be iron enriched and thus denser than the ambient mantle.  I will discuss the implications of including this density variation in computer models of mantle convection in Cartesian boxes.  I will present some of my preliminary model results (movies!) examining the stability of an iron enriched layer at the base of the mantle