Researchers used an algorithm called USPEX to find out which compounds may be formed by silicon, oxygen and magnesium at high pressures.
Researchers studied various structural compositions of Mg-Si-O that may occur at pressures ranging from 5 to 30 million atmospheres.
Such pressures may exist in the interior of super-Earths - planets with a solid surface mass several times greater than the mass of the Earth.
Researchers predicted new magnesium and silicon oxides that do not fit in with the rules of classical chemistry - SiO, SiO3, and MgO3, in addition to the oxides MgO2 and Mg3O2 previously predicted by Oganov at lower pressures.
The fact that the Earth's continents are in constant motion, 'floating' on the surface of the mantle, is what gives volcanism and a breathable atmosphere.
If continental drift were to stop, it could have disastrous consequences for the climate, researchers said.
The study was published in the journal Scientific Reports.


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