The density jump $(ΔρICB )$ at the inner core boundary (ICB) is an important constraint on the dynamics and history of the Earth's core. Two types of seismological data sensitive to $ΔρICB $ have been studied since the ...
In contrast to the liquid outer core, the earth's inner core is mostly solid, and its composition is more pure iron. Based on dynamic arguments related to the freezing process of the inner core, and the observation of much ...