Date: February 22, 2021 02:00AM
"Earth's magnetic field flipping 42,000 years ago
linked to extinction of Neanderthals and Large Land Mammals.
The most recent reversal of Earth’s magnetic field may have been as recent as 42,000 years ago, according to a new analysis of fossilised tree rings. This flip of the magnetic poles would have been devastating, creating extreme weather and possibly leading to the extinction of large mammals and the Neanderthals.
Earth’s magnetic field extends into space and is most concentrated at the north and south poles. The magnetic poles wander and occasionally reverse around every 200,000 to 300,000 years, but we have little evidence on how this impacts our planet.
Alan Cooper at the South Australian Museum in Adelaide and his colleagues have now provided some answers. They came up with the most accurate date yet of Earth’s last magnetic field reversal called the Laschamp event, which they estimate occurred between 41,560 and 41,050 years ago and lasted less than 1000 years."
Didn't see that in any 'revelations'.