Replication Data for: Formation of Thermochemical Heterogeneities by Core-Mantle Interaction

Our simulations show that the diffusive influx is coupled to the convective mantle flow. Convection-assisted diffusion gives a larger influx beneath slabs spreading over the CMB. Additionally, as in the models with a prescribed layer, the rising plumes pull dense material up and form piles.

In this study, however, the constant chemical influx leads to piles existing for longer times. The piles are typically smaller but can maybe in combination with a primordial layer explain different seismologically observed structures and the presence of core material in the mantle.