Basaltic crust in the Earth’s lower mantle

Fabrizio Nestola explains a research, recently published in "Nature",
which shows that the Earth's surface rocks can reach great depths up to 700-800 km (“Sound velocity of CaSiO3 perovskite suggests th epresence of basaltic crust in the Earth’s lower mantle”).

Shooting and editing by Elisa Speronello
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