Raw data from a wide-angle seismic survey in the Grenada Basin
|Temporal extent||2017-05-07 -2017-06-24|
|Author(s)||Lebrun Jean-Frederic1, Lallemand Serge2, Marcaillou Boris3, Klingelhoefer Frauke4|
|Affiliation(s)||1 : UMR Géosciences Montpellier, CNRS, Université de Montpellier, Université des Antilles, Pointe à Pitre, Guadeloupe
2 : UMR Géosciences Montpellier, CNRS, Université de Montpellier, Université des Antilles, Montpellier, France
3 : UMR Geoazur, Université Côte d'Azur, CNRS, IRD, Observatoire de la Côte d'Azur, Nice, France
4 : Ifremer, Géosciences Marines, Brest, France
|Keyword(s)||Grenada Basin, Wide-angle seismic, Antilles, Back-arc basin|
The main objectives of the GARANTI cruise (Geodynamical conditions for Aves Ridge and the Lesser ANTIlles arc splitting) concern the geodynamic conditions that prevail during the splitting between the north-south-trending Aves Ridge, an extinct volcanic arc back of the Lesser Antilles, and the present volcanic arc sitting on the Atlantic edge of the Caribbean Plate. Modalities of the stretching are poorly constrained and thus controversial. During the 2017 Garanti cruise, three combined wide-angle and reflection seismic profiles, together with gravity and magnetic data, were acquired in the Lesser Antilles Backarc. The resulting velocity models show the sedimentary and crustal structures along Aves Ridge, the Grenada Basin and the modern arc.
|Utilisation||Data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of data. Data are intended to be research-quality and include estimates of data quality and accuracy, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly. Authors welcome users to ask questions and report problems.|
|Acknowledgments||We would like to thank the captain and the crew of R/V L’Atalante and the technical seismic teams of Genavir and the UMR Géoazur for their work during the data acquisition. The project is part of the ANR-17-CE31-0009 GAARANTI. Crelia Padron’s stay in France was funded by thePAUSE programme and Ifremer. The CNRS-INSU funded travel for the cruise participants and a post-cruise meeting.|
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