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| Auzende, Jean-marie; Cannat, M; Gente, Pascal; Henriet, Jean-pierre; Juteau, Thierry; Karson, J; Lagabrielle, Yves; Mevel, Christophe; Tivey, M. |
| The aim of the 20 Nautile dives of the recent Kanaut cruise was the study of the Kane Fracture Zone from its intersection with the Mid-Atlantic Ridge up to 80 km to the west. The dives have been conducted along four massifs located along the southern wall of the fracture valley. The flanks of the massifs consist of slightly tilted peridotites, gabbros and basalts, which have been exposed along normal and strike-slip major faults. No dike complex similar to that observed along the ZF Vema was observed The observed sections show pervasive cataclastic deformation and greenschist-facies metamorphic overprint. |
| Tipo: Text |
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| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00183/29470/27886.pdf |
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| Escartin, Javier; Cannat, M. |
| The aim of the project BATHYLUCK (BAThymétrie–HYdrothermalisme–LUCKy Strike) is to a) understand theinterplay between tectonism and volcanism along the zone of crustal accretion of a slow-spreading ridge, b) constrain the physical and chemical characteristics and temporal evolution of hydrothermal activity associated with a slowspreading segment and the active processes that occur within, and c) the effect of spatial and temporal variations in hydrothermalism on geo-microbiological interactions at the scale of the site. We propose an integrated, multi-scale study of the Lucky Strike hydrothermal field and its setting, that will be one of the first of such kind at a slowspreading ridge. This project is also a necessary step to establish a long-term seafloor... |
| Tipo: Text |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00360/47147/47100.pdf |
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| Searle, Rc; Cannat, M; Fujioka, K; Mevel, C; Fujimoto, H; Bralee, A; Parson, L. |
| A continuous, domed detachment surface ( FUJI Dome) has been imaged on the very slow-spreading southwest Indian Ridge using deep-towed side-scan sonar, and has been investigated by manned submersible and sea-surface geophysics. The Dome is morphologically similar to other oceanic detachments, core complexes or mega-mullions. In addition to bathymetric mullions observed in ship-borne bathymetry, finer scale spreading-parallel striations were imaged with the side scan. On the detachment surface, metabasalt crops out near the termination, probably as part of a thin fault sliver. Gabbro and troctolite probably crop out near the summit of the dome. The rest of the detachment surface is covered with sediment and rubble which is basaltic except for a single... |
| Tipo: Text |
Palavras-chave: Southwest Indian Ridge; Detachment; Submersible; Magnetic; Gravity; Marine geology and geophysics : midocean ridge processes; Marine geology and geophysics :; Seafloor morphology and bottom photography. |
| Ano: 2003 |
URL: https://archimer.ifremer.fr/doc/00226/33706/32124.pdf |
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