NODCO 2

Name: NODCO 2
Start: 1987-02-28
End: 1987-03-24
Location: South Pacific Ocean

Type	Oceanographic cruise
Ship	Jean Charcot
Ship owner	Ifremer
Dates	28/02/1987 - 24/03/1987
Chief scientist(s)	LE SUAVE Raymond
	GEO-OCEAN - UMR 6538 Univ. Brest, CNRS, Ifremer, Univ. Bretagne Sud Place Nicolas Copernic 29280 Plouzané https://www.geo-ocean.fr/
DOI	10.17600/87000711
Objective	Studying the structural, sedimentary and morphological environment of coralliferous polymetallic crusts in French Polynesia (with the aim of ultimately evaluating the potential mineral resources in the zone). Improving the mapping of a significant sector of the French Exclusive Economic Zone.

Sea/Ocean

South Pacific Ocean

Ports

Port of departure : Papeete (French Polynesia)

Port of return : Papeete (French Polynesia)

Scientific Authority

GÉOSCIENCES MARINES

Centre Ifremer Bretagne

ZI Pointe du Diable

29280 Plouzané

+33(0)2 98.22.42.24

Participating bodie(s)

IFREMER, GEMONOD, UNIVERSITE (BREST,GRENOBLE), ANALATYCAL SERVICES Co (USA)

Discipline(s)

MARINE GEOSCIENCES

Code	Label	Quantity	PI
G01	Dredge	-	LE SUAVE Raymond
G03	Core rock	-	LE SUAVE Raymond
G04	Core soft bottom	-	LE SUAVE Raymond
G08	Bottom photography 122 metres (3 bobines)	-	LE SUAVE Raymond
G24	Long to short range side scan sonar SAR (4 plongees de 1000 a 2000m)	-	LE SUAVE Raymond
G27	Gravity measurements	-	LE SUAVE Raymond
G28	Magnetic measurements	-	LE SUAVE Raymond
G74	Multi-beam echosounding	-	LE SUAVE Raymond
G75	Single channel seismic reflection sismique + sondeur 3.5 kHz	-	LE SUAVE Raymond

Summary of measurements

-Over approximately 5,200 km of ship's route: Seabeam bathymetry; Fast lightweight reflection seismology; 3.5 kHz ; Magnetism; Gravimetry.
-"Detailed" Seabeam bathymetry on a zone of about 1,400 km2.
-4 SAR (towed sidescan sonar) profiles, making approximately 100 km (coverage of about 150 km2) and 32 h in water for 26 h of activities between 1,000 and 2,000 m.
-Rock samples taken; 18 dredge hauls; 1 core.
-Sediment sampling; 2 core samples; 4 American "pyrotechnic multicorer" operations (samples + photos of seabed).
-Water samples taken (5) at two stations.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1972 = WGS72

Positioning system : SATELLITE + GPS

Sampling operations

Name	Dive	Equipement	Date	Location	Depth(m)
NOD2-ASC-2	-	DRAGUE (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	14° 6.500' S 149° 12.200' W	-
NOD2-ASC-4	-	DRAGUE (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	14° 7.300' S 149° 8.800' W	-
NOD2-DR-01	-	Drague à roche (TYPE NON PRECISE)	19870304 05:32:0004/03/1987 05:32:00	14° 57.075' S 148° 41.644' W	1275
NOD2-DR-02	-	Drague à roche (TYPE NON PRECISE)	19870306 04:27:0006/03/1987 04:27:00	14° 30.030' S 149° 58.727' W	1027
NOD2-DR-03	-	Drague à roche (TYPE NON PRECISE)	19870306 07:00:0006/03/1987 07:00:00	14° 30.379' S 149° 55.630' W	620
NOD2-DR-04	-	Drague à roche (TYPE NON PRECISE)	19870306 09:07:0006/03/1987 09:07:00	14° 26.784' S 149° 56.636' W	990
NOD2-DR-05	-	Drague à roche (TYPE NON PRECISE)	19870306 12:54:0006/03/1987 12:54:00	14° 32.559' S 149° 55.102' W	900
NOD2-DR-06	-	Drague à roche (TYPE NON PRECISE)	19870306 16:17:0006/03/1987 16:17:00	14° 23.508' S 150° 7.059' W	2848
NOD2-DR-07	-	Drague à roche (TYPE NON PRECISE)	19870308 11:56:0008/03/1987 11:56:00	14° 3.182' S 149° 10.000' W	1440
NOD2-DR-08	-	Drague à roche (TYPE NON PRECISE)	19870308 14:12:0008/03/1987 14:12:00	14° 4.136' S 149° 10.920' W	1370
NOD2-DR-09	-	Drague à roche (TYPE NON PRECISE)	19870308 17:04:0008/03/1987 17:04:00	14° 5.020' S 149° 10.340' W	1225
NOD2-DR-10	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	14° 6.930' S 149° 10.580' W	-
NOD2-DR-11	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	17° 13.990' S 143° 41.580' W	-
NOD2-DR-12	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	17° 15.020' S 143° 45.760' W	-
NOD2-DR-13	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	17° 11.270' S 143° 43.520' W	-
NOD2-DR-14	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	16° 52.110' S 146° 14.110' W	-
NOD2-DR-15	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	16° 46.140' S 146° 13.380' W	-
NOD2-DR-16	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	16° 46.420' S 146° 13.250' W	-
NOD2-DR-17	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	14° 11.530' S 149° 6.650' W	-
NOD2-DR-18	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	14° 13.140' S 149° 31.210' W	-
NOD2-DR-19	-	Drague à roche (TYPE NON PRECISE)	19870301 00:00:0001/03/1987 00:00:00	14° 10.890' S 149° 33.100' W	-
NOD2-KS-03	-	Carottier KULLENBERG	19870301 00:00:0001/03/1987 00:00:00	14° 2.400' S 149° 27.280' W	-

Bibliography

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

Le Suave R (1990). Campagne Nodco 2: Reconnaissance de plusieurs sites d'encroutements cobaltiferes dans les Tuamoto u(Polynesie francaise). Oceanologica Acta, Special issue Open Access version : https://archimer.ifremer.fr/doc/00268/37952/

Amosse J, Le Suave R (1990). Geochemical investigation of Pt, Pd, Rh, Ru and Au in cobalt-rich deposits from the Tuamotu Plateau (French Polynesia). Oceanologica Acta, Special issue Open Access version : https://archimer.ifremer.fr/doc/00268/37911/

References of Technical Reports

Dyment Jérôme, Lallier François, Le Bris Nadine, Rouxel Olivier , Sarradin Pierre-Marie , Lamare Sylvain, Coumert Coralie, Morineaux Marie, Tourolle Julie (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/

Ifremer (1999). Rapport de mission ZEPOLYF2 - Programme d'inventaire des Ressources de la Zone Economique Exclusive de Polynésie Française.

Le Suave Raymond (1989). Campagne NODCO 2. N.O. Jean Charcot, 28 février au 24 mars 1987. Résultats préliminaires. DERO/GM 89-01.

Le Suave Raymond (1989). Campagne NODCO 2. N.O. Jean Charcot, 28 février au 24 mars 1987. Recueil des coupes sismiques. DERO-GM 89-02.

Ifremer (1987). Compte-rendu de campagne NODCO 2.

Ifremer (1987). NODCO II - 1er mars 1987 Papeete - 23 mars 1987 Papeete à bord du J. Charcot.

File	Processing level	Size	Format
Restricted access 0001.01.im	RAW DATA	21 MB	IMAGERIE SONAR (.im)
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Restricted access 0001.03.im	RAW DATA	26 MB	IMAGERIE SONAR (.im)
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Restricted access 0003.04.im	RAW DATA	18 MB	IMAGERIE SONAR (.im)
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Restricted access 0004.04.im	RAW DATA	21 MB	IMAGERIE SONAR (.im)
Restricted access 0004.05.im	RAW DATA	8 MB	IMAGERIE SONAR (.im)

French Oceanographic Cruises

NODCO 2

Data managed by SISMER

Sampling operations

Bibliography