The findings of a new study by the University of Liverpool provides further evidence of an approximately 200 million-year long cycle in the strength of the Earth's magnetic field.
See Jupiter Tonight: Why The ‘King Of The Planets’ Will Look Its Brightest, Biggest And Best This WeekA study published in 2020 has suggested that the Devonian-Carboniferous mass extinction is linked to elevated solar radiation levelsLiverpool palaeomagnetist and lead author of the paper, Dr.
"Our findings, when considered alongside the existing datasets, supports the existence of an approximately 200-million-year long cycle in the strength of the Earth's magnetic field related to deep Earth processes. As almost all of our evidence for processes within the Earth's interior is being constantly destroyed by plate tectonics, the preservation of this signal for deep inside the Earth is exceedingly valuable as one of the few constraints we have.
"Our findings also provide further support that a weak magnetic field is associated with pole reversals, while the field is generally strong during a Superchron, which is important as it has proved nearly impossible to improve the reversal record prior to 300 million years ago." I'm a freelance geologist working mostly in the Eastern Alps. I graduated in 2007 with a project studying how permafrost, that´s frozen soil, is reacting to the moreI'm a freelance geologist working mostly in the Eastern Alps. I graduated in 2007 with a project studying how permafrost, that´s frozen soil, is reacting to the more visible recent changes of the alpine environment.
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