• Catalogue PIGMA
  •  
  •  
  •  

Depth profiles of selected radionuclides and grain size in marine sediments of the West Gironde Mud Patch (Bay of Biscay)

The West Gironde Mud Patch (WGMP) is a 420-km2 mud belt in the Bay of Biscay, located 25 km off the mouth of the Gironde estuary. This clay-silt feature of 4 m in thickness extends between 30 and 75m water depth, surrounded by the sands and gravels that cover the North Aquitaine continental shelf. Interface cores were collected during JERICOBent-1 cruise (October 2016; Deflandre (2016) doi.org/10.17600/16010400) along two cross-shelf transects for a total of 9 sites. Each sediment core was carefully extruded every 0.5 cm from the top core to 4 cm and every 1 cm below until the core bottom. The sediment layers were used to determine dry bulk density, grain size and selected radioisotope activities (210Pb, 226Ra, 137Cs, 228Th, K).

Simple

Date (Publication)
2020-12
Date (Revision)
2021-11-16
Other citation details
Schmidt Sabine (2020). Depth profiles of selected radionuclides and grain size in marine sediments of the West Gironde Mud Patch (Bay of Biscay). SEANOE. https://doi.org/10.17882/77523
Credit
This work was supported by: (1) the JERICO-NEXT project (European Union's Horizon 2020 Research and Innovation program under grant agreement no. 654410), (2) the VOG project (LEFE-CYBE R and EC2CO-PNEC), We are thankful to the French Nouvelle Aquitaine Research Council (E3A Project) for the co-funding of the low‐background gamma detector.
Author
  CNRS, UMR5805 EPOC - Schmidt Sabine
Publisher
  SEANOE
Theme
  • West Gironde Mud Patch
  • Bay of Biscay
  • continental shelf
  • 210Pb
  • 226Ra
  • 228Th
  • 137Cs
  • K
  • grain size
  • dry bulk density
  • sediment
  • Marine geology
ODATIS aggregation parameters and Essential Variable names
  • Sedimentary fluxes
SeaDataNet Parameter Disciplines
  • Marine geology
Type de jeux de donnée ODATIS
  • /Observational data/in-situ
Use limitation
CC-BY-NC (Creative Commons - Attribution, No commercial usage)
Use constraints
Other restrictions
Date (Publication)
2021
Publisher
  Elsevier BV
Author
  DUBOSQ NICOLAS
Author
  SCHMIDT SABINE
Author
  WALSH J.P.
Author
  GRÉMARE ANTOINE
Author
  GILLET HERVÉ
Author
  LEBLEU PASCAL
Author
  POIRIER DOMINIQUE
Author
  PERELLO MARIE-CLAIRE
Author
  LAMARQUE BASTIEN
Author
  DEFLANDRE BRUNO
Unique resource identifier
10.1016/j.csr.2021.104419
Association Type
Cross reference
Initiative Type
Study
Unique resource identifier
10.17600/16010400
Association Type
Cross reference
Initiative Type
Platform
Metadata language
English
Topic category
  • Oceans
N
S
E
W
thumbnail


Begin date
2016-10-25
End date
2016-11-01
Distribution format
  • XLS, XLSX ( )

OnLine resource
Quality controlled data ( WWW:DOWNLOAD-1.0-link--download )

Profiles of selected radionuclides, grain size and dry bulk density in marine sediment of the West Gironde Mud Patch (Bay of Biscay) - 142 KB

OnLine resource
DOI of the product ( WWW:LINK-1.0-http--metadata-URL )
OnLine resource
Seanoe ( rel-canonical )
Hierarchy level
Dataset
Statement

Dry bulk density (DBD) determination: water content was determined by weighing each sediment samples before and after drying at 60°C, and dry bulk density was subsequently calculated, assuming a mineral density of 2.65 g/cm.

Sediment grain size was measured using a Malvern Mastersizer 2000 laser diffraction particle size analyzer.

Radionuclide activities were measured using a high-efficiency, broad energy gamma detector equipped with a Cryo-Cycle II (Mirion). The gamma detector is calibrated using IAEA certified materials (RGU-1). Errors on activities are based on standard deviation counting statistics

 

File identifier
seanoe:77523 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-11-16
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Point of contact
  CNRS, UMR5805 EPOC - Schmidt Sabine
 
 

Overviews

overview
Example of a sediment core collected in the West Gironde Mud Patch (Bay of Biscay) using a multicorer

Spatial extent

N
S
E
W
thumbnail


Keywords

137Cs 210Pb 226Ra 228Th Bay of Biscay K Marine geology West Gironde Mud Patch continental shelf dry bulk density grain size sediment
ODATIS aggregation parameters and Essential Variable names
Sedimentary fluxes
Type de jeux de donnée ODATIS
/Observational data/in-situ

Provided by

logo
Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •