Geodynamics of rift-plume interaction in Iceland as constrained by new Ar-40/Ar-39 and in situ U-Pb zircon ages

• Published in: Earth and Planetary Science Letters
• Main Authors: E. Martin, J. Paquette, V. Bosse, G. Ruffet, O. Sigmarsson, M. Tiepolo
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2011
• Subjects: Geochronology; Geodynamic evolution; Iceland; Mantle plume-ridge interaction; Rift propagation; Spreading rate; Settore GEO/08 - Geochimica e Vulcanologia; Kolbeinsey; Kolbeinsey Ridge; Mid-Atlantic Ridge; North Atlantic
• Online Access: http://hdl.handle.net/2434/298882; https://doi.org/10.1016/j.epsl.2011.08.036

The interaction between a rift zone and a mantle plume leads to exceptional situations in Iceland where the island is 1.5 wider than expected, given the North-Atlantic spreading rate. In order to give a better idea of the timeframe of this evolution, we present 32 new 40Ar/39Ar and in-situ U-Pb dati...