2.1.1 Dorsales océaniques
Définition des dorsales océaniques
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Figure 1.13 : Représentation de la sortie du magma de l’asthénosphère à travers le rift et de
son dépôt sur les deux côtés de celui-ci créant la croûte océanique (source :
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Figure 1.14 : Schéma qui montre un modèle d’accrétion océaniqueproposé par Escartin and
Canales, (2011) associé principalement aux détachements océaniques (source : Escartin and Canales, 2011).
Hydrothermalisme
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Figure 1.15 : Représentation de la circulation hydrothermale du fluide dans les dorsales
océaniques (source : http://www.google.fr/imgres.com).
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