South Atlantic Anomaly vs poleshift: Core region beneath southern Africa may be the birthplace of recent and future magnetic pole reversals

earth magnetic field reversal, pole shift, poleshiftUsing new data gathered from sites in southern Africa, University of Rochester researchers have extended their record of Earth’s magnetic field back thousands of years to the first millennium. The record provides historical context to help explain recent, ongoing changes in the magnetic field, most prominently in an area in the Southern Hemisphere known as the South Atlantic Anomaly.
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