geomagnetic reversal

(redirected from Polar reversal)
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geomagnetic reversal

n.
A change in the earth's magnetic field resulting in the switch in position of the earth's magnetic north and south poles. Also called magnetic reversal.
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References in periodicals archive ?
How did the polar reversal start so early, even though the onset of the solar cycle, that is, increased activity at lower latitudes, hadn't begun yet?
Sometimes an attempt to disprove the theory backfired--a student working on the Precambrian "ice rocks" in Australia found evidence of seven polar reversals, providing welcome proof of the long duration of the glacial event.
Sediment bearing stone tools was deposited between the polar reversals that occurred 1.