Magnetism in Ancient Crystals Reveals When Earth's Inner Core Emerged - ScienceAlert

Researchers have been able to use an analysis of ancient rock crystals – and the magnetism records locked inside them – to trace back the history of Earth's inner core across hundreds of millions of years.

Researchers have been able to use an analysis of ancient rock crystals and the magnetism records locked inside them to trace back the history of Earth's inner core across hundreds of millions of year… [+3443 chars]

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