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Paleointensity across the Reunion event in Ethiopia

Carlut, Julie, Jean-Pierre Valet, Xavier Quidelleur, Vincent Courtillot, Tesfaye Kidane, Yves Gallet, and Pierre-Yves Gillot (1999), Paleointensity across the Reunion event in Ethiopia, Earth and Planetary Science Letters, 170(1-2), 17 - 34, doi:10.1016/S0012-821X(99)00094-1.

Paleointensity experiments have been conducted on a volcanic series of 33 flows which recorded the geomagnetic RĂ©union event. Successive determinations of absolute paleointensity from 20 flows indicate that the RĂ©union event would actually be characterized by two successive periods of low field intensity, with a total duration not in excess of 30 kyr. The first period has a mean paleointensity of 12 ?T and shows significant deviations from initial reverse polarity but no signs of fully normal polarity. It is followed by field recovery, then a decrease prior to the second directional episode. The second period has a mean paleointensity of 17 ?T and is associated with full normal directions, and thus likely a dominantly dipolar configuration. These results are compatible with a simple `earthlike' magnetic field model with a large decrease in dipole field strength which yields local emergence of relatively stronger non-dipole components. Field characteristics from this configuration would be different at different locations and could explain the variability of the paleomagnetic records collected around the world. We propose that the absence of field recovery following the event is responsible for not leading to a durable polarity interval.
Further information
  author = {Julie Carlut and Jean-Pierre Valet and Xavier Quidelleur and Vincent Courtillot and Tesfaye Kidane and Yves Gallet and Pierre-Yves Gillot},
  journal = {Earth and Planetary Science Letters},
  number = {1-2},
  pages = {17 - 34},
  title = {{Paleointensity across the Reunion event in Ethiopia}},
  volume = {170},
  year = {1999},
  url = {http://www.sciencedirect.com/science/article/B6V61-4BRKNB5-P/2/79fb3697237505028ad5fac5035592a5},
  doi = {10.1016/S0012-821X(99)00094-1},
%0 Journal Article
%A Carlut, Julie
%A Valet, Jean-Pierre
%A Quidelleur, Xavier
%A Courtillot, Vincent
%A Kidane, Tesfaye
%A Gallet, Yves
%A Gillot, Pierre-Yves
%D 1999
%N 1-2
%V 170
%J Earth and Planetary Science Letters
%P 17 - 34
%T Paleointensity across the Reunion event in Ethiopia
%U http://www.sciencedirect.com/science/article/B6V61-4BRKNB5-P/2/79fb3697237505028ad5fac5035592a5
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