SEEPGOL2

Name: SEEPGOL2
Start: 2008-06-04
End: 2008-06-07
Location: Mediterranean Sea, Western Basin

Type	Oceanographic cruise
Ship	Le Suroît
Ship owner	Ifremer
Dates	04/06/2008 - 07/06/2008
Chief scientist(s)	RABINEAU Marina , ASLANIAN Daniel
	GEO-OCEAN - UMR 6538 Univ. Brest, CNRS, Ifremer, Univ. Bretagne Sud Place Nicolas Copernic 29280 Plouzané https://www.geo-ocean.fr/
DOI	10.17600/8020100
Objective	The main objective of this cruise was to find indications of fluid seeps in the deep part of the Gulf of Lion. Meeting it entailed: Obtaining a high quality bathymetric map in the area of interest (NW of Melrose Resources' Rhone Maritime concession). This map should enable indications of fluid to be found, as well as mapping the outcropping faults which could provide conduits for migration of fluids. Acquiring high resolution Chirp data on the same area to simultaneously identify sub-outcropping faults which could act as conduits and potential gas chimneys. Analyzing the water column in order to show gas escaping on the seabed (or in the water column) which would supply positive indications of fluid seepage. Sampling was done on any trace of hydrocarbons on the surface of the water during the cruise. The cruise is related to the PGE02 "Mineral and energy resources: sedimentary processes and impacts on ecosystems" programme.

Sea/Ocean

Mediterranean Sea, Western Basin

(Golfe du Lion)

Ports

Port of departure : Toulon (France)

Port of return : Toulon (France)

Limits

North	South	West	East
43.2	41.5	4.5	6.5

Scientific Authority

LABORATOIRE GÉO-OCÉAN - UMR 6538

Technopôle Brest-Iroise

Rue Dumont d'Urville

29280 Plouzané

https://www-iuem.univ-brest.fr/lgo/fr

Participating bodie(s)

UMR6538, Le Centre français du Littoral, et le Lab. Géophysique et Géodynamique

Discipline(s)

PHYSICAL OCEANOGRAPHY
MARINE GEOSCIENCES

Code	Label	Quantity	PI
D71	Current profiler (eg ADCP)	-	ASLANIAN Daniel
G73	Single-beam echosounding	-	ASLANIAN Daniel
G74	Multi-beam echosounding	-	RABINEAU Marina
G75	Single channel seismic reflection	-	RABINEAU Marina
H13	Bathythermograph	-	ASLANIAN Daniel
H71	Surface measurements underway (T,S)	-	ASLANIAN Daniel
M06	Routine standard measurements	-	ASLANIAN Daniel

Summary of measurements

-Multibeam echosounder acquisition, with water depth (depending on observations).
-CHIRP acquisition.
-XCTD acquisition.
-XBT acquisition.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Data managed by SISMER

Bibliography

Publications

Badhani Shray, Cattaneo Antonio , Dennielou Bernard , Leroux Estelle , Colin Florent, Thomas Yannick, Jouet Gwenael, Rabineau Marina, Droz Laurence (2020). Morphology of retrogressive failures in the Eastern Rhone Interfluve during the Last Glacial Maximum (Gulf of Lions, Western Mediterranean). Geomorphology, 351, 106894 (19p.). Publisher's official version : https://doi.org/10.1016/j.geomorph.2019.106894 , Open Access version : https://archimer.ifremer.fr/doc/00592/70396/

Pellen Romain, Aslanian Daniel , Rabineau Marina, Suc J.P., Gorini C., Leroux Estelle , Blanpied C., Silenziario C., Popescu S.M., Rubino J.L. (2019). The Messinian Ebro River incision. Global And Planetary Change, 181, 102988 (15p.). Publisher's official version : https://doi.org/10.1016/j.gloplacha.2019.102988 , Open Access version : https://archimer.ifremer.fr/doc/00506/61768/

Lombo Tombo Swesslath, Dennielou Bernard , Berne Serge, Bassetti Maria-Angela, Toucanne Samuel , Jorry Stephan , Jouet Gwenael, Fontanier Christophe (2015). Sea-level control on turbidite activity in the Rhone canyon and the upper fan during the Last Glacial Maximum and early Deglacial. Sedimentary Geology, 323, 148-166. Publisher's official version : https://doi.org/10.1016/j.sedgeo.2015.04.009 , Open Access version : https://archimer.ifremer.fr/doc/00266/37712/

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