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Core processes

Earth's inner weakness

The way in which seismic waves pass through the core suggests alignment of iron crystals within the solid inner core. Experiments indicate that iron at inner-core conditions may be weaker than thought and easily allow deformation of iron crystals.

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Figure 1: Testing inner-core strength.


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Correspondence to Sébastien Merkel.

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Merkel, S. Earth's inner weakness. Nature Geosci 6, 514–515 (2013).

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