Solidification of Earth’s mantle led inevitably to a basal magma ocean
27 March 2025Nature, Published online: 26 March 2025; doi:10.1038/s41586-025-08701-z
As the early Earth solidified, gravitational segregation of dense, iron-rich melts drove mantle evolution, injecting geochemical signatures of shallow silicate fractionation into the deep mantle and inevitably forming a basal magma ocean.