Science Daily wrote:What do early Earth's core formation and drip coffee have in common?

Wang and Fei suggest that the violent environment of early Earth would have actually created the circumstances that would turn the mantle into a giant "pour over" coffee apparatus, allowing percolation of liquid metal through an interconnected network. They analyzed the chemical exchanges during this percolation process. Their results would account for iron-loving elements being left behind in the mantle, shedding light on a longstanding geochemistry question.

https://www.sciencedaily.com/releases/2 ... 161223.htm