FARANAUT/15N

Type Oceanographic cruise
Ship L'Atalante
Ship owner Ifremer
Dates 15/03/1992 - 14/04/1992
Chief scientist(s) BOUGAULT Henri

GEO-OCEAN - UMR 6538

Univ. Brest, CNRS, Ifremer, Univ. Bretagne Sud

Place Nicolas Copernic

29280 Plouzané

https://www.geo-ocean.fr/
DOI 10.17600/92000311
Objective Until now the ocean crust was considered to be a succession of layers: a layer of a few km of basalts, then one of gabbros (produced by crystallization of basaltic liquid), then the deep rocks of the mantle (peridotites). A series of recent data on the mid-Atlantic ridge at 15N (especially those collected during cooperation involving French, Russian and American), demonstrated that direct interaction between the Ocean and the mantle existed at the outcropping of deep mantle rocks. FARANAUT/ISN studied two sites: 1) The Eastern intersection (inner corner) of the ridge axis with the 15.20'N fracture zone; 2) A section of the axial valley of the ridge located 30 km north of the Western intersection of the ridge with the 15.20'N fracture zone.

Data managed by SISMER

Sampling operations

Dives

Bibliography

Publications

Cannat Mathilde, Mangeney Anne, Ondreas Helene, Fouquet Yves, Normand Alain (2013). High-resolution bathymetry reveals contrasting landslide activity shaping the walls of the Mid-Atlantic Ridge axial valley. Geochemistry Geophysics Geosystems, 14(4), 996-1011. Publisher's official version : https://doi.org/10.1002/ggge.20056 , Open Access version : https://archimer.ifremer.fr/doc/00284/39516/


Pichot Thibaud, Patriat MartinORCID, Westbrook Graham, Nalpas T., Gutscher Marc-Andre, Roest WalterORCID, Deville E., Moulin M.ORCID, Aslanian DanielORCID, Rabineau MarinaORCID (2012). The Cenozoic tectonostratigraphic evolution of the Barracuda Ridge and Tiburon Rise, at the western end of the North America-South America plate boundary zone. Marine Geology, 303, 154-171. https://doi.org/10.1016/j.margeo.2012.02.001


Cannat Mathilde, Lagabrielle Yves, Bougault Henri, Casey Jack, de Coutures Nathalie, Dmitriev Leonid, Fouquet Yves (1997). Ultramafic and gabbroic exposures at the Mid-Atlantic Ridge: geological mapping in the 15 degrees N region. Tectonophysics, 279(1-4), 193-213. https://doi.org/10.1016/S0040-1951(97)00113-3


Villanueva R, Segonzac Michel, Guerra A (1997). Locomotion modes of deep-sea cirrate octopods (Cephalopoda) based on observations from video recordings on the Mid-Atlantic Ridge. Marine Biology, 129(1), 113-122. https://doi.org/10.1007/s002270050152


Bougault Henri, Charlou Jean-Luc, Fouquet Yves, Needham Hubert D, Vaslet Nathalie, Appriou Pierre, Jean Baptiste Philippe, Rona Peter A, Dmitriev Leonid, Silantiev Sergei (1993). Fast and slow spreading ridges: structure and hydrothermal activity - Ultramafic Topographic Highs and CH4 output. Journal Of Geophysical Research-solid Earth, 98(B6), 9643-9651. Publisher's official version : https://doi.org/10.1029/93JB00508 , Open Access version : https://archimer.ifremer.fr/doc/00070/18116/


References of Articles published in other Periodicals or Scientific Works acclaimed in the Field

Macpherson E, Segonzac Michel (2005). Species of the genus Munidopsis (Crustacea, Decapoda, Galatheidae) from the deep Atlantic Ocean, including cold-seep and hydrothermal vent areas. Zootaxa, 1095(0), 3-60.


Stohr Sabine, Segonzac Michel (2005). Deep-sea ophiuroids (Echinodermata) from reducing and non-reducing environments in the North Atlantic Ocean. Journal of the Marine Biological Association of the United Kingdom, 85(2), 383-402. Open Access version : https://archimer.ifremer.fr/doc/00000/427/


References of Technical Reports

Viellefon Priscille (2020). Cartographie – Compilation et analyses numériques de données bathymétriques sur la dorsale Atlantique Nord centrale. Rapport de stage technique. https://archimer.ifremer.fr/doc/00679/79153/


Dyment Jérôme, Lallier François, Le Bris Nadine, Rouxel OlivierORCID, Sarradin Pierre-MarieORCID, Lamare Sylvain, Coumert Coralie, Morineaux Marie, Tourolle JulieORCID (2014). Les impacts environnementaux de l’exploitation des ressources minérales marines profondes. Expertise scientifique collective. Rapport, CNRS – Ifremer, 937 p. https://archimer.ifremer.fr/doc/00872/98434/


(1992) Cahier de quart. FARANAUT 1992.


Bougault Henri (1992). FARANAUT. Cruise report. R/V ATALANTE, NAUTILE. Mars/April 1992.