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- Title
Two different R-N geomagnetic reversals with identical VGP paths recorded at the same site.
- Authors
Valet, J.-P.; Laj, C.; Langereis, C. G.
- Abstract
We have studied two reverse-normal (R-N) geomagnetic reversals recorded at different stratigraphical levels of a single section of Tortonian marine clays in western Crete. We report here that the virtual geomagnetic pole (VGP) paths associated with these two transitions, which are separated in time by a period of ∼1 Myr, are identical. Although the possibility of an accidental coincidence cannot be rejected, this result suggests that the basic mechanisms in the geodynamo leading to a reversal might persist unchanged over a long period of time. Moreover, the two VGP paths are largely constrained in longitude along a mean great circle located ∼80°W of the site, so that the transitional field cannot be correctly described in terms of pure axial symmetry.
- Publication
Nature, 1983, Vol 304, Issue 5924, p330
- ISSN
0028-0836
- Publication type
Article
- DOI
10.1038/304330a0