(Table 2) Age determination of sediment core IG-KS-11 the Demerara Plateau, North Atlantic ...

The Demerara Plateau, belonging to the passive transform margin of French Guiana, was investigated during the IGUANES cruise in 2013. The objectives of the cruise were to explore the poorly-known surficial sedimentary column overlying thick mass transport deposits as well as to understand the factor...

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Bibliographic Details
Main Authors: Tallobre, Cédric, Loncke, Lies, Bassetti, Maria Angela, Giresse, Pierre, Bayon, Germain, Buscail, Rosalyne, de Madron, Xavier Durrieu, Bourrin, François, Vanhaesebroucke, Marc, Sotin, Christine, IGUANES Scientific Party
Format: Dataset
Language:English
Published: PANGAEA 2017
Subjects:
DEPTH, sediment/rock
Age, dated material
Sample ID
Age, dated
Age, dated standard deviation
Calendar age, minimum/young
Calendar age, maximum/old
Calendar age
Piston corer
Age, 14C calibrated, CALIB 7.0 with MARINE13 calibration curve Reimer et al. 2013
NADW
North Atlantic Deep Water
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.871658
https://doi.pangaea.de/10.1594/PANGAEA.871658
Description
Summary:The Demerara Plateau, belonging to the passive transform margin of French Guiana, was investigated during the IGUANES cruise in 2013. The objectives of the cruise were to explore the poorly-known surficial sedimentary column overlying thick mass transport deposits as well as to understand the factors controlling recent sedimentation. The presence of numerous bedforms at the seafloor was observed thanks to newly acquired IGUANES bathymetric, high resolution seismic and chirp data, while sediment cores allowed the characterization of the deposits covering the mass transport deposits. Modern oceanographic conditions were determined in situ, using mooring monitoring over a 10-month period. Our data indicate the presence of a Contourite Depositional System along the Demerara Plateau, most likely related to bottom current activity of the North Atlantic Deep Water (NADW). However, at the regional scale, large longitudinal waves parallel the NADW flow. Their shape and orientation seem to be inherited from ... : Supplement to: Tallobre, Cédric; Loncke, Lies; Bassetti, Maria Angela; Giresse, Pierre; Bayon, Germain; Buscail, Rosalyne; de Madron, Xavier Durrieu; Bourrin, François; Vanhaesebroucke, Marc; Sotin, Christine; IGUANES Scientific Party (2016): Description of a contourite depositional system on the Demerara Plateau: Results from geophysical data and sediment cores. Marine Geology, 378, 56-73 ...

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