Spreading rate, spreading obliquity, and melt supply at the ultraslow spreading Southwest Indian Ridge

• Published in: Geochemistry, Geophysics, Geosystems
• Main Authors: Cannat, Mathilde, Sauter, Daniel, Bezos, Antoine, Meyzen, Christine, Humler, Eric, Le Rigoleur, Marion
• Format: Article in Journal/Newspaper
• Language: English
• Published: Amer Geophysical Union 2008
• Subjects: mid-ocean ridges; melt supply; mantle melting; magmatic segmentation; Arctic; Gakkel Ridge; Indian
• Online Access: https://archimer.ifremer.fr/doc/00237/34860/33204.pdf; https://doi.org/10.1029/2007GC001676; https://archimer.ifremer.fr/doc/00237/34860/

We use bathymetry, gravimetry, and basalt composition to examine the relationship between spreading rate, spreading obliquity, and the melt supply at the ultraslow spreading Southwest Indian Ridge (SWIR). We find that at regional scales (more than 200 km), melt supply reflects variations in mantle m...