par Class, Cornelia;Goldstein, Steven S.L.;Galer, Stephen S.J.G.;Weis, Dominique 
Référence Nature (London), 362, 6422, page (715-721)
Publication Publié, 1993
Référence Nature (London), 362, 6422, page (715-721)
Publication Publié, 1993
Article révisé par les pairs
| Résumé : | The Ninetyeast Ridge hotspot track displays strontium, neodymium and lead isotope variations over time that reflect simple radioactive decay in the plume source rather than a change in the mantle components present. The lead isotope variations indicate that the time spent by the plume source in a non-convecting mantle boundary layer was only a few hundreds of millions of years, contrary to the conventional view of individual plume sources as old (1-3 Gyr) or persistent features. |
