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Neat News 2017-13 (added 2017-01-13)

Earth Core may Contain Silicon

© Kelvinsong [CC BY-SA 3.0]

The composition of the earth's inner core can be determined only indirectly via seismic waves. It is assumed that it consists to 85% of iron and 10% of nickel. New research suggests now that the remaining 5% are mainly silicon.

News seen at: BBC - Science

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