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The 'iron catastrophe' was an event early in the History of Earth when dense iron sank towards the core during the formation of the Earth. The sinking of large amounts of iron towards the core released large amounts of energy in the form of heat. The sinking of denser materials, such as iron, results in the layered Earth we have today with a hot core and mantle and a cold crust.

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★ FAQ section

See also

★ Catastrophism