Plate tectonics and mantle controls on plume dynamics

Mantle plumes provide valuable information about whole Earth convection: they originate at the core-mantle boundary, cross Earth's mantle and interact with the lithosphere. For instance, it has been proposed that the mobility/stability of plumes depends on plume intrinsic properties, on how slabs interact with the basal boundary layer, on mantle flow, or on their proximity to mid-ocean ridges.Here, we use 3D-spherical models of mantle convection generating selfconsistent plate-like behaviour to investigate the mechanisms linking tectonics and mantle convection to plume dynamics. Our models produce fully dynamic mantle plumes that rise vertically with deflection < 10 degrees and present excess temperatures, rising speeds, buoyancy and heat fluxes comparable to