Scientists extract record of Earth's magnetic field changes from Iron Age African burnt clay huts, which locked in a record of the magnetic field from those times - results confirm the current 'South Atlantic Anomaly' has happened before as well - discu.eu

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Scientists extract record of Earth's magnetic field changes from Iron Age African burnt clay huts, which locked in a record of the magnetic field from those times - results confirm the current 'South Atlantic Anomaly' has happened before as well https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017gl076007 7 comments 29/12/2018 science