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INNER CORE SOLIDIFICATION

Geodynamo recharged

Transition from a weak and erratic geomagnetic field to a more stable one around 560 million years ago, inferred from palaeomagnetic measurements, suggests that the inner core may have solidified around that time, much later than thought.

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Fig. 1: Core and field.

Roberto Molar Candanosa and Peter Driscoll

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Correspondence to Peter Driscoll.

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Driscoll, P. Geodynamo recharged. Nature Geosci 12, 83–84 (2019). https://doi.org/10.1038/s41561-019-0301-2

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