Discovery of a magma chamber and faults beneath a Mid-Atlantic Ridge hydrothermal field

Satish C. Singh (), Wayne C. Crawford, Hélène Carton, Tim Seher, Violaine Combier, Mathilde Cannat, Juan Pablo Canales, Doga Düsünür, Javier Escartin and J. Miguel Miranda
Additional contact information
Satish C. Singh: Institut de Physique du Globe de Paris
Wayne C. Crawford: Institut de Physique du Globe de Paris
Hélène Carton: Institut de Physique du Globe de Paris
Tim Seher: Institut de Physique du Globe de Paris
Violaine Combier: Institut de Physique du Globe de Paris
Mathilde Cannat: Institut de Physique du Globe de Paris
Juan Pablo Canales: Woods Hole Oceanographic Institution
Doga Düsünür: Institut de Physique du Globe de Paris
Javier Escartin: Institut de Physique du Globe de Paris
J. Miguel Miranda: Centro de Geofisica, University of Lisbon, Campo Grande, Ed C8

Nature, 2006, vol. 442, issue 7106, 1029-1032

Abstract: A Good Spread Data from the recent seismic reflection survey over the Lucky Strike volcano and hydrothermal vent field in the Atlantic Ocean made from the French ship RV l'Atalante provide the first clear seismic image of an axial magma chamber beneath a slow spreading ridge. Faults can be seen penetrating down to the chamber, a formation that has never been imaged before. These findings provide an insight into the interaction between the volcanic and tectonic processes that contribute to crust formation at slow spreading ridges. The Lucky Strike volcano is situated at the centre of the Lucky Strike segment of the Mid-Atlantic Ridge, currently spreading at a rate of about 22 mm per year.

Date: 2006
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DOI: 10.1038/nature05105

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