GEOBRESIL 10-73 CH46

Name: GEOBRESIL 10-73 CH46
Start: 1973-10-19
End: 1973-11-04
Location: Southwest Atlantic Ocean (20W)

Type	Oceanographic cruise
Ship	Jean Charcot
Ship owner	Ifremer
Dates	19/10/1973 - 04/11/1973
Chief scientist(s)	MELGUEN Marthe
	BIBLIOTHEQUE LA PEROUSE 15 rue Dumont d'Urville Technopole Brest-Iroise BP 70 29280 PLOUZANE +33(0)2.98.49.88.84 https://w3z.ifremer.fr/blp
DOI	10.17600/73003011
Objective	The GEOBRESIL cruise has three main objectives: Study of current and pre-Pleistocene sedimentation conditions along the Vema Channel; Study of current and pre-Pleistocene sedimentation conditions on the Rio Grande Rise; Study of the nature and origin of the Rio Grande Rise, comparing them to those of the Walvis Ridge.

Sea/Ocean

Southwest Atlantic Ocean (20W)

(ATLANTIQUE SUD OUEST)

Ports

Port of departure : Rio de Janeiro (Brazil)

Port of return : Rio de Janeiro (Brazil)

Scientific Authority

GÉOSCIENCES MARINES

Centre Ifremer Bretagne

ZI Pointe du Diable

29280 Plouzané

+33(0)2 98.22.42.24

Participating bodie(s)

INSTITUT DE GEOLOGIE DU BASSIN AQUITAINE

Discipline(s)

PHYSICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY
MARINE GEOSCIENCES

Code	Label	Quantity	PI
B08	Phytoplankton	19	MELGUEN Marthe
B09	Zooplankton	19	MELGUEN Marthe
G01	Dredge	4 hauls	MELGUEN Marthe
G04	Core soft bottom	30 cores	MELGUEN Marthe
G08	Bottom photography	14 images	MELGUEN Marthe
G27	Gravity measurements 1665 milles	-	MELGUEN Marthe
G28	Magnetic measurements 1665 milles	-	MELGUEN Marthe
G74	Multi-beam echosounding 1665 milles	-	MELGUEN Marthe
G75	Single channel seismic reflection	981	MELGUEN Marthe
H09	Water bottle stations	15 stations	MELGUEN Marthe

Summary of measurements

-Conventional stations.
-Phyto- and zooplankton.
-Dredge and corer sampling.
-Soundings.
-Sea-bottom photography.
-Gravimetry.
-Magnetism.

Location map

Positionning system

Geodetic system : VALEUR INDEFINIE

Positioning system : Sat (WGS 66 pblt)+ autre sys de pos ???

Sampling operations

Name	Dive	Equipement	Date	Location	Depth(m)
DR01	-	Drague à roche (TYPE NON PRECISE)	19731027 00:00:0027/10/1973 00:00:00	29° 40.000' S 36° 25.600' W	2250
DR02	-	Drague à roche (TYPE NON PRECISE)	19731028 00:00:0028/10/1973 00:00:00	29° 57.300' S 36° 9.500' W	1483
DR03	-	Drague à roche (TYPE NON PRECISE)	19731028 00:00:0028/10/1973 00:00:00	30° 50.900' S 36° 52.600' W	1815
DR04	-	Drague à roche (TYPE NON PRECISE)	19731030 00:00:0030/10/1973 00:00:00	31° 44.000' S 37° 29.600' W	3850
DR05	-	Drague à roche (TYPE NON PRECISE)	19731030 00:00:0030/10/1973 00:00:00	31° 47.500' S 37° 31.200' W	3221
KR01	-	Carottier boite REYNECK	19731023 00:00:0023/10/1973 00:00:00	27° 50.200' S 37° 12.000' W	4563
KR02	-	Carottier boite REYNECK	19731023 00:00:0023/10/1973 00:00:00	27° 47.000' S 37° 27.200' W	4499
KR03	-	Carottier boite REYNECK	19731023 00:00:0023/10/1973 00:00:00	27° 51.200' S 37° 22.900' W	4460
KR04	-	Carottier boite REYNECK	19731024 00:00:0024/10/1973 00:00:00	27° 42.700' S 37° 15.600' W	4585
KR05	-	Carottier boite REYNECK	19731026 00:00:0026/10/1973 00:00:00	28° 58.700' S 36° 7.900' W	3893
KR06	-	Carottier boite REYNECK	19731027 00:00:0027/10/1973 00:00:00	29° 58.600' S 36° 15.800' W	628
KR07	-	Carottier boite REYNECK	19731027 00:00:0027/10/1973 00:00:00	29° 58.600' S 36° 15.800' W	628
KR08	-	Carottier boite REYNECK	19731027 00:00:0027/10/1973 00:00:00	29° 31.000' S 36° 24.300' W	3274
KR09	-	Carottier boite REYNECK	19731029 00:00:0029/10/1973 00:00:00	30° 53.400' S 36° 55.600' W	1953
KR10	-	Carottier boite REYNECK	19731029 00:00:0029/10/1973 00:00:00	32° 25.100' S 37° 54.400' W	4480
KS01	-	Carottier KULLENBERG	19731025 00:00:0025/10/1973 00:00:00	27° 41.000' S 35° 26.000' W	4412
KS02	-	Carottier KULLENBERG	19731025 00:00:0025/10/1973 00:00:00	27° 40.900' S 35° 26.200' W	4410
KS03	-	Carottier KULLENBERG	19731025 00:00:0025/10/1973 00:00:00	27° 40.900' S 35° 28.100' W	4406
KS04	-	Carottier KULLENBERG	19731026 00:00:0026/10/1973 00:00:00	28° 58.400' S 36° 8.000' W	3947
KS05	-	Carottier KULLENBERG	19731026 00:00:0026/10/1973 00:00:00	28° 58.800' S 36° 8.000' W	3893
KS06	-	Carottier KULLENBERG	19731027 00:00:0027/10/1973 00:00:00	29° 58.600' S 36° 15.800' W	628
KS07	-	Carottier KULLENBERG	19731027 00:00:0027/10/1973 00:00:00	29° 31.000' S 36° 24.600' W	3280
KS08	-	Carottier KULLENBERG	19731028 00:00:0028/10/1973 00:00:00	30° 45.500' S 36° 48.100' W	570
KS09	-	Carottier KULLENBERG	19731029 00:00:0029/10/1973 00:00:00	30° 54.100' S 36° 55.400' W	1946
KS10	-	Carottier KULLENBERG	19731029 00:00:0029/10/1973 00:00:00	32° 25.700' S 37° 54.400' W	4480
KS11	-	Carottier KULLENBERG	19731030 00:00:0030/10/1973 00:00:00	31° 59.000' S 37° 37.900' W	4070
KS12	-	Carottier KULLENBERG	19731001 00:00:0001/10/1973 00:00:00	31° 28.400' S 37° 16.800' W	3465
KS13	-	Carottier KULLENBERG	19000102 00:00:0002/01/1900 00:00:00	99° 59.999' N 999° 59.999' E	-

Bibliography

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

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/

References of Technical Reports

CNEXO, France (1982). Recueil des travaux du Centre Océanologique de Bretagne (C.O.B.). Publications du Centre National pour l'Exploitation des Océans (CNEXO) n° 10 - 1982. ISSN 0336-3112.

CNEXO, France (1980). Recueil des travaux du Centre Océanologique de Bretagne (C.O.B.). Publications du Centre National pour l'Exploitation des Océans (CNEXO) n° 8 - 1980. ISSN 0336-3112.

CNEXO, France (1978). Recueil des travaux du Centre Océanologique de Bretagne (C.O.B.). Publications du Centre National pour l'Exploitation des Océans (CNEXO) n° 6 - 1978. ISSN 0336-3112.

CNEXO (1976). Recueil des travaux du Centre Océanologique de Bretagne (C.O.B.). Publications du Centre National pour l'Exploitation des Océans (CNEXO) n° 4 - 1976. ISSN 0336-3112.

(1973) Répartition des quarts pour 1ere partie Geobresil.

French Oceanographic Cruises

GEOBRESIL 10-73 CH46

Data managed by SISMER

Sampling operations

Bibliography