IPOD

Name: IPOD
Start: 2012-08-03
End: 2012-08-17
Location: Southwest Pacific Ocean (140W)

Type	Oceanographic cruise
Ship	Alis
Ship owner	IRD
Dates	03/08/2012 - 17/08/2012
Chief scientist(s)	COLLOT Julien , ROUILLARD Pierrick
	GEO-OCEAN - UMR 6538 Univ. Brest, CNRS, Ifremer, Univ. Bretagne Sud Place Nicolas Copernic 29280 Plouzané https://www.geo-ocean.fr/
DOI	10.17600/12100080
Objective	Study of deposits and post-obduction tectonic movements of the western margin of New-Caledonia by acquiring high resolution multichannel seismic reflection profiles and dredging for rock samples. This project is related to local projects to characterize the post-obduction geology of New Caledonia (regolith project, project on characterization of Miocene formations at Népoui, Action Marges de Nouvelle-Calédonie project). The area of investigation corresponds to the western margin of New Caledonia in the New Caledonia Basin, going from east to west from the fringing reef to the deep basin and from north to south, from Koumac to Bouloupari.

Sea/Ocean

Southwest Pacific Ocean (140W)

Ports

Port of departure : Noumea (New Caledonia)

Port of return : Noumea (New Caledonia)

Limits

North	South	West	East
-20.5	-22.4	163.7	166.4

Scientific Authority

DIRECTION DE L'INDUSTRIE, DES MINES ET DE L'ENERGIE (DIMENC)

1 ter rue Unger

BP 465

98845 NOUMEA

687.27.02.30

dimenc@gouv.nc

https://dimenc.gouv.nc/

Participating bodie(s)

SGNC/DIMENC, ADECAL/ZoNéCo, Ifremer, CNRS-INSU

Discipline(s)

MARINE GEOSCIENCES
PHYSICAL OCEANOGRAPHY

Code	Label	Quantity	PI
D71	Current profiler (eg ADCP)	-	COLLOT Julien
G01	Dredge 14 dragages	14 hauls	COLLOT Julien
G76	Multichannel seismic reflection 1353 km de profils sismiques acquis	1353 kilometers	COLLOT Julien

Summary of measurements

-Multichannel seismic reflection surveys: 1,353km of profiles acquired along the spurs of the western margin of New Caledonia and parallel to the margin for the imaging of recent faults and the architecture of post-obduction sediments.
-14 rock dredge hauls were made in water depths between 1,500 and 1,000 m. 13 of them were successful for the mission's objectives.
-Some specimens of benthic organisms, particularly fixed corals (cold water corals?) could interest the biology community.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS naturel

Joint document(s)

Cruise Report of IPOD

Data managed by SISMER

Bibliography

Publications

Staszak Paul, Collot Julien, Josso Pierre, Pelleter Ewan , Etienne Samuel, Patriat Martin , Cheron Sandrine, Boissier Audrey , Guyomard Yaël (2022). Origin and Composition of Ferromanganese Deposits of New Caledonia Exclusive Economic Zone. Minerals, 12(2), 255 (28p.). Publisher's official version : https://doi.org/10.3390/min12020255 , Open Access version : https://archimer.ifremer.fr/doc/00751/86344/

Mortimer N., Gans P. B., Meffre S., Martin C. E., Seton M., Williams S., Turnbull R. E., Quilty P. G., Micklethwaite S., Timm C., Sutherland R., Bache Francois, Collot Julien, Maurizot P., Rouillard P., Rollet N. (2018). Regional volcanism of northern Zealandia: post-Gondwana break-up magmatism on an extended, submerged continent. Geological Society, London, Special Publications, 463(1), 199-226. Publisher's official version : https://doi.org/10.1144/SP463.9 , Open Access version : https://archimer.ifremer.fr/doc/00439/55100/

Collot Julien, Patriat Martin , Etienne S., Rouillard P., Soetaert F., Juan C., Marcaillou B., Palazzin G., Clerc C., Maurizot P., Pattier F, Tournadour E., Sevin B., Privat A. (2017). Deepwater fold-and-thrust belt along New Caledonia's western margin: relation to post-obduction vertical motions. Tectonics, 36(10), 2108-2122. Publisher's official version : https://doi.org/10.1002/2017TC004542 , Open Access version : https://archimer.ifremer.fr/doc/00405/51614/

Cravatte Sophie, Kestenare Elodie, Eldin Gerard, Ganachaud Alexandre, Lefevre Jerome, Marin Frederic, Menkes Christophe, Aucan Jerome (2015). Regional circulation around New Caledonia from two decades of observations. Journal Of Marine Systems, 148, 249-271. https://doi.org/10.1016/j.jmarsys.2015.03.004

References of Technical Reports

Staszak Paul, Collot Julien, Josso Pierre, Pelleter Ewan , Etienne Samuel, Patriat Martin (2022). Minéralisations marines profondes en Nouvelle-Calédonie : Caractérisation minéralogique et chimique des encroûtements ferromanganésifères au sein de la ZEE. Rapport SGNC-2022(03), 102p. https://doi.org/10.13155/86566

Morgans, H. (2014), Foraminiferal biostratigraphy for New Caledonia IPOD dredge samples, GNS Science Consultancy Report 2014/223.

Collot Julien, Rouillard P, Juan C., Patriat Martin , Lenault Yannick, Privat A, Maurizot P (2013). Rapport de mission de la campagne océanographique IPOD (Investigating Post Obduction Deposits) à bord du N/O Alis du 1er au 18 Aout 2012. Rapport SGNC-2013(01).

References of National Seminar Communications

Rouillard, P. et al., 2013, Géologie Post-Obduction de Nouvelle-Calédonie, Colloque IRD « Quelle recherche en Province Nord ? », Poindimié, 20 Juin 2013

DEA or MASTER 2 using campaign data

Soetaert, F. (2015), Architecture de la marge occidentale de la Nouvelle-Calédonie, caractérisation d'un méga-complexe glissé, Diplôme Universitaire de l'ENSEGID - Service Géologique de Nouvelle-Calédonie / Programme Zonéco.

Juan, C., 2012, Traitement et interprétation des données sismiques au large de la Nouvelle-Calédonie: M. Sc. engineering school thesis report - Polytech Paris UPMC. Privat, A., 2012, Préparation, embarquement et traitement des données de la campagne océanographique IPOD: Rapport de stage technicien - Institut LaSalle Beauvais / Service Géologique de Nouvelle-Calédonie.

Privat, A., 2012, Préparation, embarquement et traitement des données de la campagne océanographique IPOD: Rapport de stage technicien L3 - Institut LaSalle Beauvais / Service Géologique de Nouvelle-Calédonie.