Raw data from a wide-angle seismic survey in the Grenada Basin

Date 2020-05-28
Temporal extent 2017-05-07 -2017-06-24
Author(s) Lebrun Jean-FredericORCID1, Lallemand SergeORCID2, Marcaillou BorisORCID3, Klingelhoefer FraukeORCID4
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
DOI 10.17882/74223
Publisher SEANOE
Keyword(s) Grenada Basin, Wide-angle seismic, Antilles, Back-arc basin
Abstract

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.

Licence CC-BY-NC
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.
Acknowledgements 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.
Sensor metadata

Auffret, Y., Pelleau, P., Klingelhoefer, F., Geli, L., Crozon, J., Lin, J. Y., & Sibuet, J. C. (2004). MicrOBS: A new generation of ocean bottom seismometer. First Break, 22(7), 41-47.

Hello, Y., Guralp, C., Yates, B., Anglade, A., Desprez, O., Smith, A., ... & Charvis, P. (2008). The GEOAZUR/GURAL<< HIPPOCAMPE>> OBS/LTOBS.

Data
File Size Format Processing Access
52 MB SEGY Raw data Access on demand until 2022-05-27
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How to cite 

Lebrun Jean-Frederic, Lallemand Serge, Marcaillou Boris, Klingelhoefer Frauke (2020). Raw data from a wide-angle seismic survey in the Grenada Basin. SEANOE. https://doi.org/10.17882/74223