Earth’s core and mantle separated in a disorderly fashion
It is well understood that Earth formed from the accretion of matter surrounding the young Sun. Eventually the planet grew to such a size that denser iron metal sank inward, to form the beginnings of the Earth’s core, leaving the silicate-rich mantle floating above. But new work from a team led by Carnegie’s Yingwei Fei and Carnegie and the Smithsonian’s Colin Jackson argues that this mantle and core separation was not such an orderly process.
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