Diamonds hidden deep underground formed from sea water

Diamonds formed from seawater near the Earth's core can reveal movements hundreds of kilometers away.

In a discovery published on January 6 in the journal Nature, researchers from Bristol University, UK, revealed carbon regeneration through the movement of Earth's tectonic plates, and how This process helps to form diamonds hidden deep underground.

The team discovered that some rare diamonds formed in the carbon process from seawater penetrate the tectonic plate and react to the Earth's coating because the tectonic plate is submerged. Subduction occurs when a plate of tectonics moves down below another plate and sinks into the coating.

Diamonds deep underground reflect the Earth's carbon cycle.(Photo: slate.com).

The researchers conducted experiments with small rock samples taken from the seabed at high temperatures and pressures. This allowed them to determine the conditions that caused the slabs to melt when joining the Earth's coating. They found that almost every stone frees carbon while melting at a depth of 300 - 700km.

In addition, the team examined the reaction of the molten slabs with the Earth's coating. As a result, they can create the usual mineral composition of diamonds formed under a depth of 250km.

Research not only provides an explanation of how diamonds are born at great depths, but also show them as evidence of the Earth's carbon cycle. This is a useful tool to help scientists understand what happens inside the planet.

"Diamonds formed at great depths provide a lot of potential for research on Earth's fluctuating cycles. We have a much better understanding of the basic process for them to be born. We can use the source of information. Rich information stored in diamonds to create a detailed picture of the processes that took place below the ground for hundreds of kilometers, "said Simon Kohn, co-author of the study.

After the diamond formed from carbon in the rocks at the bottom of the sea, the stone was pushed back to the mantle between the Earth's crust and the outer core. There, the heat of magma columns pushes it to the surface according to molten kimberlite and this volcanic rock will store diamonds.