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The following is a list of geomagnetic reversals, showing the ages of the beginning and end of each period of normal polarity (where the polarity matches the current direction). Source for the last 83 million years: Cande and Kent, 1995. [1] Ages are in million years before present (mya).
Printable version; Page information; Get shortened URL; Download QR code; In other projects ... US/UK Word Magnetic Model - Epoch 2020.0 Main Field Declination (D)
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The magnetic field of the Earth, and of other planets that have magnetic fields, is generated by dynamo action in which convection of molten iron in the planetary core generates electric currents which in turn give rise to magnetic fields. [15] In simulations of planetary dynamos, reversals often emerge spontaneously from the underlying dynamics.
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Earth Magnetic Field Declination from 1590 to 1990. The Hydrographic Office, later the Naval Oceanographic Office, was responsible for publishing charts defining components the world magnetic field. After the non-magnetic vessel Carnegie blew up in 1909 collection of oceanic magnetic field information capability was lost. By 1951 those charts ...
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Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Help. Pages in category "Geomagnetic reversal" The following 8 pages are in this ...