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Laschamp Excursion "EMPOWER IAS"

In news:

  • This newscard is an excerpt from the original article published in DownToEarth.


Laschamp Excursion

  • The Laschamp event was a geomagnetic excursion (a short reversal of the Earth’s magnetic field). It occurred 41,400 years ago, during the end of the Last Glacial Period.
  • This event is named after the village where it was discovered in the French Massif Central.
  • It led to series of catastrophic events like the ozone layer was destroyed, electrical storms raged across the tropics, solar winds generated spectacular light shows (auroras), Arctic air poured across North America, ice sheets and glaciers surged and weather patterns shifted violently.
  • During these events, life on earth was exposed to intense ultraviolet light, Neanderthals and giant animals known as megafauna went extinct, while modern humans sought protection in caves.