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11,700 years of movement of the magnetic North Pole reconstructed

2019-12-29T10:47:07.031Z


Thanks to an Italian research (ANSA)


The movements of the magnetic North Pole in the last 11,700 years have been reconstructed for the first time thanks to the Italian research published in the Quaternary Science Reviews magazine and born from the collaboration between the National Institute of Geophysics and Volcanology (Ingv) and the National Institute of Oceanography and Experimental Geophysics (OGS). Together they analyzed marine sediment carrots from the Arctic region off the Svalbard islands.

After the data relating to the very rapid movement of the magnetic North Pole towards Siberia, collected in February 2019, the map indicates that since the beginning of the current geological era, called Holocene, the movements of the magnetic North Pole have always been variable and unpredictable. Research indicates that for centuries the location of the ancient geomagnetic North Pole has been substantially stable, confined to rather limited regions. In other periods, however, it has undergone a significant acceleration, covering very large regions in a short time.


Geomagnetic North Pole displacements: 3,200 years ago it reached European Russia and, after a pause of 4 centuries, 2,000 years ago it reached North America (source: INGV)



The alternation of these periods of quiet and activity, is found in the research, is a consequence of the complex processes that take place inside the Earth, in the area on the border between the Earth's mantle and the external fluid nucleus in which it originates. the Earth's magnetic field. This is valuable information to understand what is happening today, with the sharp acceleration of the magnetic North Pole towards Siberia and, in Antart

Source: ansa

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