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Ancient Northland swamp kauri solves 42,000 year old mystery
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Science and Research – Ancient kauri trees reveal a turning point in Earth s history 42,000 years ago – NIWA
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Friday, 19 February 2021, 8:29 am
A new international study using ancient swamp kauri from
Northland shows a temporary breakdown of Earth’s magnetic
field 42,000 years ago sparked major climate shifts leading
to global environmental change and mass
extinctions.
This dramatic turning point in Earth’s
history was triggered by a reversal of Earth’s magnetic
poles and changing solar winds.
Study authors from
UNSW Sydney, the South Australian Museum, NIWA and the
University of Waikato, dubbed this episode the ‘Adams
Transitional Geomagnetic Event’, or ‘Adams Event’ for
short - a tribute to science fiction writer Douglas Adams,
who wrote in The Hitchhikers Guide to the Galaxy that