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Geomagnetic field intensity and reversals during the past four million years

Nature volume 366, pages 234–238 (1993)Cite this article

Abstract

A long and continuous record of the geomagnetic field intensity shows that intensity variations are dominated by two modes. Major episodes of field regeneration prevail on timescales of a few thousand years immediately after most reversals, whereas stable polarity states are characterized by a slow (∼0.5 Myr) relaxation process. Reversals can be seen as the consequence of a progressive degradation of the dipole field.

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Authors and Affiliations

  1. Institut de Physique du Globe de Paris, 4 Place Jussieu, 75252, Paris, Cedex 05, France

    Jean-pierre Valet & Laure Meynadier

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  1. Jean-pierre Valet
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  2. Laure Meynadier
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Valet, Jp., Meynadier, L. Geomagnetic field intensity and reversals during the past four million years. Nature 366, 234–238 (1993). https://doi.org/10.1038/366234a0

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