The scatter plots in this corner plot show where every simulation lies in a subset of the full parameter space defined by four variables: the reference viscosity for the lower mantle (ν_LM,0), the amount of ⁴⁰K in the core (⁴⁰K_c in units of ppm of K in the core), the liquidus depression (ΔT_χ,ref), and the reference core liquidus temperature (T_ref,Lind). The histograms show the distribution of Type III evolutions (red) and non–Type III evolutions (black) marginalized over all parameters except for each parameter below them (or to the left, in the case of the initial mantle temperature). Note that the lower mantle reference viscosity, the liquidus depression, and the reference liquidus temperature appear to exert the strongest control on whether a simulation will end with a mostly frozen core.