Abstract : The Amsterdam St. Paul hotspot (Indian Ocean) interacts with a regional depleted mantle containing some DUPAL-like blobs. Its lateral motion velocity is about 1-2 cm/yr. The plume induced the construction of a volcanic chain and of an oceanic plateau through two pulses of more intense magmatic activity. The intraplate plate activity appears partially controlled by some tectonic stress induced by the diverging motion of the Australian and Capricorn plates along a diffuse boundary.
Type de document :
Communication dans un congrès
Iceland in the Central Northern Atlantic : hotspot, sea currents and climatic change, May 2010, Plouzané, France
http://hal.univ-brest.fr/hal-00482191
Contributeur : Adminhal Univbrestbu
<>
Soumis le : dimanche 9 mai 2010 - 21:20:24
Dernière modification le : mardi 29 mai 2018 - 12:50:53
Document(s) archivé(s) le : jeudi 16 septembre 2010 - 13:29:53
Myriam Janin, Christophe Hémond, Marcia Maia. Amsterdam - St. Paul Hotspot History. Iceland in the Central Northern Atlantic : hotspot, sea currents and climatic change, May 2010, Plouzané, France. 〈hal-00482191〉
