POLYPLAC

Type Service
Ship L'Atalante
Ship owner Ifremer
Dates 01/09/2012 - 12/09/2012
Chief scientist(s) LOUBRIEU Benoit ORCID

GEO-OCEAN - UMR 6538

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

Place Nicolas Copernic

29280 Plouzané

https://www.geo-ocean.fr/
DOI 10.17600/12010090
Objective The POLYPLAC cruise is part of the EXTRAPLAC project, whose purpose is to submit and defend the application to extend the French legal continental shelf to the United National Convention for the Law of the Sea. This cruise is connected with the application file to extend the continental shelf beyond the Polynesian EEZ, and more specifically, in a zone located to the east of the Marquesas Islands for the project's first operation in this region. In compliance with the extension application directives, the main priorities of the POLYPLAC cruise are (1) to characterize the natural extension from the Marquesas Island land mass to the edge of the continental margin and (2) to supply elements to characterize the "foot of the slope" which is the boundary beyond which an extension of 60 nautical miles can be proposed. Within this context, the POLYPLAC cruise is mainly based on acquiring multibeam acoustic data to map the area, associated with magnetism and sub-bottom profiler data, complemented by rock dredge samples.

Data managed by SISMER

Sampling operations

Bibliography

Publications

Revillon Sidonie, Guillou Herve, Maury Rene C., Chauvel Catherine, Aslanian DanielORCID, Pelleter EwanORCID, Scao Vincent, Loubrieu Benoit, Patriat MartinORCID (2017). Young Marquesas volcanism finally located. Lithos, 294-295, 356-361. Publisher's official version : https://doi.org/10.1016/j.lithos.2017.10.013 , Open Access version : https://archimer.ifremer.fr/doc/00407/51832/


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

Loubrieu Benoit, Roest WalterORCID, Patriat MartinORCID, Loubersac Lionel (2014). Le programme d’EXTension RAisonnée du PLAteau Continental (EXTRAPLAC). Enjeux pour les trois collectivités ultramarines du Pacifique (Nouvelle-Calédonie, Wallis & Futuna, Polynésie française). Taï Kona, (11), 18 - 26. Open Access version : https://archimer.ifremer.fr/doc/00217/32820/


References of Technical Reports

Hanafi-Portier Méissa, Samadi Sarah (2024). Les monts sous-marins de Polynésie Française. Etat des lieux des connaissances et recommandations scientifiques.


Guerin Charline (2012). POLYPLAC - Traitement bord EM122.


Loubrieu Benoit (2012). Rapport de la campagne POLYPLAC. 1er septembre – 12 septembre 2012. N /O L’Atalante. Convention Extraplac MEDDE-GGEC / Ifremer n°12/1210 085/BF.