Magnetic pole reversal indicated in 42,000 year old tree rings may have triggered global environmental change
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Posted: Feb 19, 2021 4:15 PM ET | Last Updated: February 19
Tree rings from the ancient Kauri tree in New Zealand showed a spike in radioactive carbon indicative of a magnetic pole reversal(Nelson Parker) comments
Quirks and Quarks8:01When the magnetic poles flip out, Earth seems to suffer
The Earth s magnetic poles have flipped many times in our planet s history - and while we know this is an important geophysical event, we haven t had any good evidence to indicate whether it s an important biological event.
عندما نزعت الأرض رداءها المغناطيسي هذا ما حدث قبل 42 ألف عام aljazeera.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from aljazeera.net Daily Mail and Mail on Sunday newspapers.
Radiocarbon measurements on the remains of 42.000 years old New Zealand kauri trees provide the basis for better calibration of geological archives of this period
Scientists Bring Global Pole Shift Fears Into Focus ancient-origins.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from ancient-origins.net Daily Mail and Mail on Sunday newspapers.
Ancient Northland swamp kauri solves 42,000 year old mystery
21 Feb, 2021 05:00 PM
7 minutes to read
Some of this giant ancient swamp kauri tree uncovered at Ngāwhā has been used by researchers to confirm the date when the Earth reversed its magnetic poles. Photo / Peter de Graaf
Northern Advocate
Ancient swamp kauri from Northland has been used to confirm a temporary breakdown of Earth s magnetic field 42,000 years ago sparked major climate shifts leading to global environmental change and mass extinctions.
A new international study using ancient swamp kauri from Ngāwhā shows this dramatic turning point in Earth s history was triggered by a reversal of Earth s magnetic poles and changing solar winds.