PACANTARCTIC 2

Type Oceanographic cruise
Ship L'Atalante
Ship owner Ifremer
Dates 18/12/2004 - 18/01/2005
Chief scientist(s) ONDREAS Hélène, DOSSO Laure

GEO-OCEAN - UMR 6538

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

Place Nicolas Copernic

29280 Plouzané

https://www.geo-ocean.fr/
DOI 10.17600/4010110
Objective

The PACANTARTIC 2 survey proposed a geophysical and geochemical study of the Pacific-Antarctic ridge between 42 and 52°30S (south of the Juan Fernandez microplate north of the Vacquier fracture zone) as well as a study of the two volcanic areas off-axis. As its name indicates, this cruise's objective lies in the immediate continuity of the PACANTARCTIC survey (Geli, Bougault, 1-2/1996). The PACANTARCTIC 2 survey made it possible to obtain comprehensive bathymetric and geochemical sampling of this part of the Pacific-Antarctic Ridge for the first time. This falls under the oceanic ridge/fluid project.

Data managed by SISMER

Sampling operations

Bibliography

Publications

Labidi J., Cartigny P., Hamelin C., Moreira M., Dosso Laure (2014). Sulfur isotope budget (32S, 33S, 34S and 36S) in Pacific-Antarctic ridge basalts: A record of mantle source heterogeneity and hydrothermal sulfide assimilation. Geochimica Et Cosmochimica Acta, 133, 47-67. Publisher's official version : https://doi.org/10.1016/j.gca.2014.02.023 , Open Access version : https://archimer.ifremer.fr/doc/00179/29013/


Croon Marcel B., Cande Steven C., Stock Joann M. (2010). Abyssal hill deflections at Pacific-Antarctic ridge-transform intersections. Geochemistry Geophysics Geosystems, 11(11), Q11004. https://doi.org/10.1029/2010GC003236


Hamelin Cedric, Dosso Laure, Hanan Barry, Barrat Jean-Alix, Ondreas Helene (2010). Sr‐Nd‐Hf isotopes along the Pacific Antarctic Ridge from 41 to 53°S. Geophysical Research Letters, 37(L10303), 1-5. Publisher's official version : https://doi.org/10.1029/2010GL042979 , Open Access version : https://archimer.ifremer.fr/doc/00004/11526/


Briais Anne, Ondreas Helene, Klingelhoefer FraukeORCID, Dosso Laure, Hamelin Cedric, Guillou Herve (2009). Origin of volcanism on the flanks of the Pacific-Antarctic ridge between 41°30'S and 52°S. Geochemistry Geophysics Geosystems, 10(9), 1-20. Publisher's official version : https://doi.org/10.1029/2008GC002350 , Open Access version : https://archimer.ifremer.fr/doc/00000/11106/


Moreira M, Dosso Laure, Ondreas Helene (2008). Helium isotopes on the Pacific-Antarctic ridge (52.5°–41.5°S). Geophysical Research Letters, 35(10), NIL_49-NIL_54. Publisher's official version : https://doi.org/10.1029/2008GL033286 , Open Access version : https://archimer.ifremer.fr/doc/00000/4348/


Klingelhoefer FraukeORCID, Ondreas Helene, Briais A, Hamelin C, Dosso Laure (2006). New structural and geochemical observations from the Pacific-Antarctic Ridge between 52°45'S and 41°15'S. Geophysical Research Letters ( GRL ), 33(21), 1-19. Publisher's official version : https://doi.org/10.1029/2006GL027335 , Open Access version : https://archimer.ifremer.fr/doc/00000/2108/


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

Dosso L., Ondréas O., and the Pacantarctic 2 shipboard scientific party, Briais A., Fernagu P., Floch G., Hamelin C., Hanan B., Klingelhoefer F., Moreira M., Normand A., (2005). The Pacific-Antarctic ridge between 41°15'S and 52°45'S : survey and sampling during the Pacantarctic2 cruise. InterRidge News, 5, 1-4.

References of Technical Reports

Ifremer (2005). Pacantarctic 2.


Franck Martelozzo. Travail sur les données de la campagne PACANTARCTIC2. Novembre 2005 à février 2006. Contrat 05/20681889

References of International Seminar Communications

Hamelin, C., Dosso, L., Moreira, M., Hanan, B., Kositsky, A. P., (2010), Geochemical portray of the Pacific ridge using statistical techniques,Geochimica et Cosmochimica Acta, Volume 74, Issue 11 Supplement 1, A373.

Moreira, MA; Gayer, E; Guillon, F, Dosso, L., Ondréas, H., 2009. Rare gases on off-axis seamounts: Constraints on the marble-cake model. Goldschmidt Conference, Davos, Suisse. Geochimica et Cosmochimica Acta Vol: 73, Issue: 13, pp A903-A903

Dosso, L., Hamelin, C., Hanan, B, Moreira, M., Barrat, J.-A. (2007). Geochemical segmentation of the Pacific-Antarctic Ridge. Goldschmidt Conference, Cologne, Allemagne.

Briais A., Ondréas H., Klingelhoefer F., Dosso L., Guillou H., 2006. Analysis of off-axis volcanic ridges on the flank of the Pacific-Antarctic ridge. Results from the Pacantarctic 2 cruise. European Geosciences Union 2006, 2-7 april 2006, Vienna, Austria, Geophysical Research abstracts, 8, 04323.

C. Hamelin, L.Dosso, B. Hanan, M. Moreira, J.-A. Barrat, Scales of Geochemical Segmentation of the Pacific Ridge, American Geophysical Union, Fall Meeting 2006, abstract #V31D-0619.

Ondréas H., Klingelhoefer F., Briais A., Hamelin C., Dosso L., 2006. The Pacific - Antarctic ridge between 41°S and 53°S: hot underlying mantle evidenced by bathymetry and gravity studies coupled to geochemical results. European Geosciences Union 2006, 2-7 april 2006, Vienna, Austria, Geophysical Research abstracts, 8, 03397.

Briais A., Ondréas H., Klingelhoefer F., Dosso L., 2005. Analysis of off-axis volcanic ridges on the flanks of the Pacific- Antarctic Ridge. Results from Pacantarctic 2 cruise. AGU Fall Meeting. Abstract in, EOS Transaction, 86, 52.

Hamelin C., Dosso L., Hanan B.B., Moreira M., Klingelhoefer F., Barrat J., Ondréas H., 2005. The Pacific - Antarctic Ridge axis between 41° and 51°S: first sampling and geochemical data. AGU Fall Meeting. Abstract in, EOS Transaction, 86, 52.

Ondréas H., Klingelhoefer F., Briais A., Hamelin C., Dosso L., 2005. The Pacific - Antarctic Ridge between 41° S and 51°S: hot underlying mantle evidenced by bathymetry and gravity studies coupled to geochemical results. AGU Fall Meeting. Abstract in, EOS Transaction, 86, 52.

DEA or MASTER 2 using campaign data

WILLY Joseph-Louis (Master). Sujet : "Analyse du volcanisme hors-axe près de la dorsale Pacifique-Antarctique". Labo d?accueil : CNRS - DTP/Obs. Midi-Pyrénées. Tuteur : Anne Briais.

Thesis using campaign data

Cédric Hamelin, thèse 2008 à l?Université de Bretagne Occidentale, UMR6538 Domaines Océaniques, co-direction J.A. Barrat/L.Dosso.