As the duration of a magnetic reversal can be up to 12,000 years, could there come a time mid-way in the transition when Earth's magnetic field is as negligible as that of Mars or Venus? Magnetic reversals are random, but we haven't had one for nearly a million years, while the average interval is about 300,000 years.
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asked Nov 24, 2019 at 11:37
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$\begingroup$ this is related earthscience.stackexchange.com/questions/17110/… you might find some of the links in my answer useful. $\endgroup$– trond hansenNov 24, 2019 at 14:51
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1$\begingroup$ relevent books.google.com/… $\endgroup$– JohnNov 24, 2019 at 14:55
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