Giant blobs in Earth’s mantle may be driving a ‘diamond manufacturing unit’ near our planet’s core

The boundary zone between Earth’s molten metallic core and the mantle, its rocky center layer, would possibly be a diamond manufacturing unit. 

A brand new laboratory experiment finds that, beneath excessive temperatures and pressures, the mix of iron, carbon and water — all potential components discovered on the core-mantle boundary — can type diamond. If this course of additionally occurs deep inside Earth, it’d clarify some bizarre quirks of the mantle, together with why it has extra carbon in it than scientists count on. 


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