R.V VEMA LEG II CH78

Name: R.V VEMA LEG II CH78
Start: 1977-10-11
End: 1977-11-05
Location: Northwest Atlantic Ocean (40W)

Type	Oceanographic cruise
Ship	Jean Charcot
Ship owner	Ifremer
Dates	11/10/1977 - 05/11/1977
Chief scientist(s)	NEEDHAM Hubert David
	GEO-OCEAN - UMR 6538 Univ. Brest, CNRS, Ifremer, Univ. Bretagne Sud Place Nicolas Copernic 29280 Plouzané https://www.geo-ocean.fr/
DOI	10.17600/77005112
Objective	The BIOVEMA cruise had a double objective: to determine the role of the VEMA fracture in West-East faunal exchanges in abyssal communities in the tropical Atlantic, precise the spatial distribution of depth organisms on a reduced scale (micro-distribution model) using repeated sampling.

Sea/Ocean

Northwest Atlantic Ocean (40W)

(ATLANTIQUE TROPICAL NORD OUEST. Zone(s) EXTRAPLAC : ANTILL, GUYANE)

Ports

Port of departure : Fort-de-France (Martinique)

Port of return : Fort-de-France (Martinique)

Scientific Authority

GÉOSCIENCES MARINES

Centre Ifremer Bretagne

ZI Pointe du Diable

29280 Plouzané

+33(0)2 98.22.42.24

Participating bodie(s)

CENTRE OCEANOLOGIQUE DE BRETAGNE BREST

Discipline(s)

METEOROLOGY
PHYSICAL OCEANOGRAPHY
MARINE GEOSCIENCES

Code	Label	Quantity	PI
G01	Dredge	8 hauls	NEEDHAM Hubert David
G04	Core soft bottom	-	NEEDHAM Hubert David
G08	Bottom photography	5 images	NEEDHAM Hubert David
G27	Gravity measurements	1500	NEEDHAM Hubert David
G28	Magnetic measurements	4500	NEEDHAM Hubert David
G73	Single-beam echosounding Sea Beam sur 4500 milles	8334 kilometers	NEEDHAM Hubert David
G74	Multi-beam echosounding SEABEAM	-	NEEDHAM Hubert David
G75	Single channel seismic reflection	150	NEEDHAM Hubert David
G90	Other geosciences meas. Penetrateur de sédiments	2000 samples	NEEDHAM Hubert David
H10	CTD stations	5 stations	NEEDHAM Hubert David
M06	Routine standard measurements toutes les 4 heures	-	NEEDHAM Hubert David

Summary of measurements

-Irregular routine measurements.
-CTD stations.
-Dredge sampling.
-Seabeam soundings.
-Seismic reflection.
-Gravimetry, magnetism.
-Sediment penetrator.
-Sea-bottom photos.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1966 = WGS66

Positioning system : Sat. Transit (recepteur ITT: WGS66?)

Sampling operations

Name	Dive	Equipement	Date	Location	Depth(m)
CH78-DR01	-	Drague à roche (TYPE NON PRECISE)	19771022 00:00:0022/10/1977 00:00:00	10° 35.400' N 42° 42.900' W	-
CH78-DR02	-	Drague à roche (TYPE NON PRECISE)	19771023 00:00:0023/10/1977 00:00:00	10° 37.300' N 42° 41.600' W	-
CH78-DR03	-	Drague à roche (TYPE NON PRECISE)	19771023 00:00:0023/10/1977 00:00:00	10° 38.800' N 42° 41.100' W	-
CH78-DR04	-	Drague à roche (TYPE NON PRECISE)	19771023 00:00:0023/10/1977 00:00:00	10° 38.800' N 42° 40.000' W	-
CH78-DR05	-	Drague à roche (TYPE NON PRECISE)	19771024 00:00:0024/10/1977 00:00:00	10° 39.400' N 42° 39.200' W	-
CH78-DR06	-	Drague à roche (TYPE NON PRECISE)	19771024 00:00:0024/10/1977 00:00:00	10° 38.600' N 42° 41.400' W	-
CH78-DR07	-	Drague à roche (TYPE NON PRECISE)	19771027 00:00:0027/10/1977 00:00:00	10° 44.000' N 41° 1.000' W	-
CH78-DR08	-	Drague à roche (TYPE NON PRECISE)	19771027 00:00:0027/10/1977 00:00:00	10° 37.000' N 40° 50.000' W	-
CH78-DR09	-	Drague à roche (TYPE NON PRECISE)	19771028 00:00:0028/10/1977 00:00:00	10° 45.000' N 40° 58.000' W	-
CH78-DR10	-	Drague à roche (TYPE NON PRECISE)	19771029 00:00:0029/10/1977 00:00:00	10° 41.500' N 42° 40.800' W	-
CH78-DR11	-	Drague à roche (TYPE NON PRECISE)	19771030 00:00:0030/10/1977 00:00:00	10° 38.600' N 42° 40.400' W	-

Bibliography

Publications

Gueguen Bleuenn, Rouxel Olivier , Fouquet Yves (2021). Nickel isotopes and rare earth elements systematics in marine hydrogenetic and hydrothermal ferromanganese deposits. Chemical Geology, 560, 119999 (15p.). Publisher's official version : https://doi.org/10.1016/j.chemgeo.2020.119999 , Open Access version : https://archimer.ifremer.fr/doc/00663/77510/

Moulin Maryline , Aslanian Daniel , Unternehr Patrick (2010). A new starting point for the South and Equatorial Atlantic Ocean. Earth Science Reviews, 98(1-2), 1-37. Publisher's official version : https://doi.org/10.1016/j.earscirev.2009.08.001 , Open Access version : https://archimer.ifremer.fr/doc/00000/11160/

Dosso Laure, Bougault Henri, Joron Jean-Louis (1993). Geochemical morphology of the North Mid-Atlantic Ridge, 10°–24°N: Trace element-isotope complementarity. Earth and Planetary Science Letters, 120(3-4), 443-462. https://doi.org/10.1016/0012-821X(93)90256-9

Sibuet Myriam, Lambert Claude E., Chesselet Roger, Laubier Lucien (1989). Density of the major size groups of benthic fauna and trophic input in deep basins of the Atlantic Ocean. Journal Of Marine Research, 47(4), 851-867. https://doi.org/10.1357/002224089785076064

Honnorez J., Mevel C., Montigny R. (1984). Occurrence and significance of gneissic amphibolites in the Vema fracture zone, equatorial Mid-Atlantic Ridge. Geological Society, London, Special Publications "Ophiolites and Oceanic Lithosphere", 13(1), 121-130. https://doi.org/10.1144/GSL.SP.1984.013.01.11

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

Scarabino Victor, Soares Caetano Carlos Henrique (2008). On the genus Heteroschismoides Ludbrook, 1960 (Scaphopoda: Gadilida: Entalinidae), with descriptions of two new species. Nautilus, 122(3), 171-177.

Auzende Jean-Marie, Bideau Daniel, Bonatti Enrico, Cannat Mathilde, Honnorez José, Lagabrielle Yves, Malavieille Jacques, Mamaloukas-Frangoulis Vassilio, Mevel Catherine (1988). Une coupe complète de la croûte océanique sur le mur Sud de la zone de fracture Vema (Atlantique central) : résultats préliminaires de la campagne Vemanaute. Comptes Rendus de l'Academie des Sciences Serie II, 307(20), 2061-2067.

Auffret Gerard, Sichler Bertrand, Coleno B (1981). Deep-sea sediments texture and magnetic fabric, indicators of bottom currents regime. Oceanologica Acta, 4(4), 475-488. Open Access version : https://archimer.ifremer.fr/doc/00000/5358/

Gairaud H, Jacquart G, Aubertin F, Beuzart Paul (1978). The jan mayen ridge synthesis of geological knowledge and new data. Oceanologica Acta, 1(3), 335-358. Open Access version : https://archimer.ifremer.fr/doc/00000/5242/

References of Technical Reports

(1977) VEMA - Quarts.

(1977) Compte-rendu de Campagne. VEMA.

French Oceanographic Cruises

R.V VEMA LEG II CH78

Data managed by SISMER

Sampling operations

Bibliography