An electro-blob under Africa may be 'ground zero' for Earth's magnetic field reversal
Published March 12, 2018
LiveScience
A flip in Earth's magnetic field may be brewing. And if it is, an electromagnetic blob deep under southern Africa is likely to be ground zero for the change.
New research using clays burned in cleansing rituals by Iron Age farmers finds that over the past 1,500 years, an electromagnetic anomaly in the Southern Hemisphere has waxed and waned, with the magnetic field in the region weakening and strengthening. This weirdness may presage a gradual reversal in the magnetic field, so that magnetic north moves to the South Pole and vice versa. (A flip-flop of this sort last occurred 780,000 years ago.)
http://www.livescience.com/61958-africa-blob-earth-magnetic-flip.html
