Age of the Laschamp paleomagnetic excursion revisited |
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| Authors: | PY Gillot J Labeyrie C Laj G Valladas G Guérin G Poupeau G Delibrias |
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| Institution: | Centre des Faibles Radioactivités, Laboratoire mixte CNRS-CEA, Domaine du CNRS, 91190 Gif-sur-Yvette France |
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| Abstract: | The reverse paleomagnetism of the lava flows of Laschamp and Olby, already discovered by Bonhommet and Babkine, is confirmed. The ages of these flows, measured by14C, thermoluminescence and K-Ar dating are respectively36,000 ± 4000 and42,000 ± 5000years. VGP's comparison of the “Laschamp event” with those of the 30,000-year Lake Mungo excursion does not show evidence of coincidence between these two events. |
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