An illustrative diagram showing the ancient subducted 'slab' the team resolved at present day. It has a direct impact on the large-scale lowermost mantle structures known as 'superplumes'.

In this diagram, the red lines represent the edges ... years or be much quicker depending on how humans use resources. The mantle is a semi-solid layer below the crust. There are no elements ...

The phase diagram shows the state of water (H2O ... For comparison: At the core-mantle boundary of the Earth at a depth of approx. 2900 kilometres, temperatures of between 3000-4000 Kelvin ...