REPREZAI_LEG1

Name: REPREZAI_LEG1
Start: 2010-12-27
End: 2011-01-25
Location: Gulf of Guinea

Type	Oceanographic cruise
Ship	Pourquoi pas ?
Ship owner	Ifremer
Dates	27/12/2010 - 25/01/2011
Chief scientist(s)	MARSSET Tania , DROZ Laurence
	GEO-OCEAN - UMR 6538 IFREMER - Technopôle Brest-Iroise IUEM - Rue Dumont d'Urville 29280 Plouzané https://www.geo-ocean.fr/
DOI	10.17600/10030170
Objective	Studying the cyclical nature in the internal architecture of the Zaire turbidite system by analyzing the migrations of deposits (channel-levee systems). Looking for controlling factors (climate). This falls under the Reprezaï project.

Sea/Ocean

Gulf of Guinea

(Dans les eaux internationales au large de l'Angola)

Ports

Port of departure : Libreville (Gabon)

Port of return : Libreville (Gabon)

Scientific Authority

GÉOSCIENCES MARINES

Centre Ifremer Bretagne

ZI Pointe du Diable

29280 Plouzané

+33(0)2 98.22.42.24

Participating bodie(s)

CNRS Brest, Bordeaux I, Universités de Paris VI, Montpellier, Oxford, Liège

Discipline(s)

PHYSICAL OCEANOGRAPHY
MARINE GEOSCIENCES

Code	Label	Quantity	PI
D90	Other physical oceanographic meas.	-	MARSSET Tania
G04	Core soft bottom Carottier Calypso	-	MARSSET Tania
G24	Long to short range side scan sonar	-	MARSSET Tania
G27	Gravity measurements KSS31	-	MARSSET Tania
G28	Magnetic measurements	-	MARSSET Tania
G73	Single-beam echosounding Chirp	-	MARSSET Tania
G74	Multi-beam echosounding Reson 12.5 Khz	-	MARSSET Tania
G75	Single channel seismic reflection	-	MARSSET Tania
G76	Multichannel seismic reflection Sismique rapide 24 traces	-	MARSSET Tania
H10	CTD stations	2 stations	MARSSET Tania
H13	Bathythermograph Sondes Sippican (XBT, XSV_02)	-	MARSSET Tania
H71	Surface measurements underway (T,S)	-	MARSSET Tania
M06	Routine standard measurements	-	MARSSET Tania

Summary of measurements

-Reson 12 Khz multibeam echosounder acquisition.
-Chirp acquisition.
-24-channel fast seismic acquisition.
-Core sampling (Calypso corer).

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Data managed by SISMER

Sampling operations

Name	Dive	Equipement	Date	Location	Depth(m)
RZCS-01	-	Carottier CALYPSO (I ou II)	20101229 00:00:0029/12/2010 00:00:00	6° 34.175' S 8° 46.091' E	4020
RZCS-02	-	Carottier CALYPSO (I ou II)	20101229 00:00:0029/12/2010 00:00:00	6° 35.679' S 8° 46.371' E	4020
RZCS-03	-	Carottier CALYPSO (I ou II)	20101230 00:00:0030/12/2010 00:00:00	6° 36.621' S 8° 46.523' E	4011
RZCS-04	-	Carottier CALYPSO (I ou II)	20101230 00:00:0030/12/2010 00:00:00	6° 29.878' S 7° 47.560' E	4276
RZCS-05	-	Carottier CALYPSO (I ou II)	20101230 00:00:0030/12/2010 00:00:00	6° 24.145' S 7° 46.479' E	4276
RZCS-06	-	Carottier CALYPSO (I ou II)	20101231 00:00:0031/12/2010 00:00:00	6° 6.245' S 7° 50.382' E	4166
RZCS-07	-	Carottier CALYPSO (I ou II)	20101231 00:00:0031/12/2010 00:00:00	6° 7.113' S 7° 50.596' E	4163
RZCS-08	-	Carottier CALYPSO (I ou II)	20110101 00:00:0001/01/2011 00:00:00	6° 8.199' S 6° 49.830' E	4558
RZCS-09	-	Carottier CALYPSO (I ou II)	20110101 00:00:0001/01/2011 00:00:00	6° 7.461' S 6° 49.681' E	4558
RZCS-10	-	Carottier CALYPSO (I ou II)	20110101 00:00:0001/01/2011 00:00:00	6° 37.333' S 6° 47.901' E	4617
RZCS-11	-	Carottier CALYPSO (I ou II)	20110102 00:00:0002/01/2011 00:00:00	6° 38.137' S 6° 48.069' E	4617
RZCS-12	-	Carottier CALYPSO (I ou II)	20110102 00:00:0002/01/2011 00:00:00	6° 38.653' S 6° 20.061' E	4749
RZCS-13	-	Carottier CALYPSO (I ou II)	20110102 00:00:0002/01/2011 00:00:00	6° 43.705' S 6° 13.312' E	4790
RZCS-14	-	Carottier CALYPSO (I ou II)	20110102 00:00:0002/01/2011 00:00:00	6° 45.152' S 6° 13.601' E	4783
RZCS-15	-	Carottier CALYPSO (I ou II)	20110103 00:00:0003/01/2011 00:00:00	6° 58.437' S 5° 39.606' E	4973
RZCS-16	-	Carottier CALYPSO (I ou II)	20110114 00:00:0014/01/2011 00:00:00	7° 54.472' S 6° 14.466' E	4925
RZCS-17	-	Carottier CALYPSO (I ou II)	20110115 00:00:0015/01/2011 00:00:00	7° 6.221' S 6° 53.154' E	4592
RZCS-18	-	Carottier CALYPSO (I ou II)	20110115 00:00:0015/01/2011 00:00:00	7° 18.595' S 6° 0.335' E	4897
RZCS-19	-	Carottier CALYPSO (I ou II)	20110115 00:00:0015/01/2011 00:00:00	8° 19.009' S 5° 28.009' E	5175
RZCS-20	-	Carottier CALYPSO (I ou II)	20110116 00:00:0016/01/2011 00:00:00	7° 48.127' S 5° 31.015' E	5064
RZCS-21	-	Carottier CALYPSO (I ou II)	20110116 00:00:0016/01/2011 00:00:00	7° 14.160' S 5° 48.360' E	5178
RZCS-22	-	Carottier CALYPSO (I ou II)	20110119 00:00:0019/01/2011 00:00:00	7° 0.540' S 5° 54.120' E	5009
RZCS-23	-	Carottier CALYPSO (I ou II)	20110119 00:00:0019/01/2011 00:00:00	6° 40.020' S 5° 15.900' E	5016
RZCS-24	-	Carottier CALYPSO (I ou II)	20110119 00:00:0019/01/2011 00:00:00	6° 50.880' S 5° 21.420' E	5056
RZCS-25	-	Carottier CALYPSO (I ou II)	20110120 00:00:0020/01/2011 00:00:00	6° 43.020' S 6° 50.400' E	4843
RZCS-26	-	Carottier CALYPSO (I ou II)	20110120 00:00:0020/01/2011 00:00:00	6° 52.860' S 5° 3.600' E	4972

Bibliography

Publications

Garzanti Eduardo, Bayon Germain, Dennielou Bernard , Barbarano Marta, Limonta Mara, Vezzoli Giovanni (2021). The Congo deep-sea fan: Mineralogical, REE, and Nd-isotope variability in quartzose passive-margin sand. Journal Of Sedimentary Research, 91(5), 433-450. Publisher's official version : https://doi.org/10.2110/jsr.2020.100 , Open Access version : https://archimer.ifremer.fr/doc/00694/80618/

Laurent Dimitri, Marsset Tania , Droz Laurence, Granjeon Didier, Molliex Stéphane, Picot Marie, Rabineau Marina (2020). 4D forward stratigraphic modelling of the late Quaternary Congo deep-sea fan: Role of climate/vegetation coupling in architectural evolution. Marine Geology, 429, 106334 (22p.). Publisher's official version : https://doi.org/10.1016/j.margeo.2020.106334 , Open Access version : https://archimer.ifremer.fr/doc/00646/75800/

Baudin François, Rabouille Christophe, Dennielou Bernard (2020). Routing of terrestrial organic matter from the Congo River to the ultimate sink in the abyss: a mass balance approach (André Dumont medallist lecture 2017). Geologica Belgica, 23(1-2), 41-52. Publisher's official version : https://doi.org/10.20341/gb.2020.004 , Open Access version : https://archimer.ifremer.fr/doc/00622/73394/

Picot M., Marsset Tania , Droz Laurence, Dennielou Bernard , Baudin F., Hermoso M., de Rafelis M., Sionneau T., Cremer M., Laurent Dimitri, Bez M. (2019). Monsoon control on channel avulsions in the Late Quaternary Congo Fan. Quaternary Science Reviews, 204, 149-171. https://doi.org/10.1016/j.quascirev.2018.11.033

Picot M., Droz L., Marsset Tania , Dennielou Bernard , Bez M. (2016). Controls on turbidite sedimentation: Insights from a quantitative approach of submarine channel and lobe architecture (Late Quaternary Congo fan). Marine And Petroleum Geology, 72, 423-446. Publisher's official version : https://doi.org/10.1016/j.marpetgeo.2016.02.004 , Open Access version : https://archimer.ifremer.fr/doc/00312/42285/

References of Technical Reports

(2010) REPREZAÏ LEG1. 27 décembre 2010 / 25 janvier 2011. N/O Pourquoi Pas ?

References of National Seminar Communications

Baudin F., Charlier K., Dennielou B., Droz L., Marsset T., Martinez P. et Schnyder, J. 2011. Répartition et origine de la matière organique dans les sédiments de surface au large du Congo. 13ème Congrès Français de Sédimentologie, ASF, Dijon, 14-16 novembre 2011.

Baudin F., Le Gouche C., Hermoso, M., Dennielou B., Marsset T., Droz L., 2011. Variabilité climatique quaternaire et enregistrements sédimentaires de la dynamique du système turbiditique du Congo/Zaïre-Apport de l'étude de la matière organique pour estimer l'âge d'une avulsion. 13ème Congrès Français de Sédimentologie, ASF, Dijon, 14-16 novembre 2011.

DEA or MASTER 2 using campaign data

Le Gouche Chloé, 2011. Origine et distribution de la matière organique dans la partie distale du système turbiditique actuel du fleuve Congo. Master 1, UPMC, Paris, 26 pp.

Pilarczyk, Elodie, 2011. Étude des Radiolaires des derniers 180 ka préservés dans les sédiments hémipélagiques du delta profond du Zaïre ; stratigraphie de haute résolution et implications paléocéanographiques. Master 2 Thesis, Spécialité Géoenvironnements actuels et passés, Univ Lille 1, 49 pp.

Thesis using campaign data

Picot Marie (2015). Cycles sédimentaires dans le système turbiditique du Congo : nature et origine. PhD Thesis, Université de Bretagne Occidentale. https://archimer.ifremer.fr/doc/00312/42275/

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GeoBIS-Chirp (Ifremer/Geosciences Marines) (2466 Files)
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