Record of glaciations off the east greenland coast over the last 400KYR : SM-ND isotopic signature of marine clays

We use Nd isotope signature of the clay-size fractions of sediments from the Southern Greenland rise to track deep current changes over the last climate cycle. Fine particle supplies to the Labrador Sea by Western Boundary UnderCurrent (WBUC) were strongly controlled by proximal ice-margin erosion a...

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Bibliographic Details
Main Authors: Fagel, Nathalie, Hilaire-Marcel, Claude
Other Authors: Argiles, Géochimie et Environnement sédimentaires, Université de Liège, Centre de recherche sur la dynamique du système Terre (GEOTOP), Université de Montréal (UdeM)-McGill University = Université McGill Montréal, Canada -École Polytechnique de Montréal (EPM)-Concordia University Montreal -Université du Québec à Rimouski (UQAR)-Université du Québec à Montréal = University of Québec in Montréal (UQAM)-Université du Québec en Abitibi-Témiscamingue (UQAT)
Format: Other/Unknown Material
Language:English
Published: HAL CCSD 2010
Subjects:
geo
envir
Greenland
East Greenland
Labrador Sea
Online Access:https://hal.univ-brest.fr/hal-00480696/file/Fagel_resume.pdf
https://hal.univ-brest.fr/hal-00480696
Description
Summary:We use Nd isotope signature of the clay-size fractions of sediments from the Southern Greenland rise to track deep current changes over the last climate cycle. Fine particle supplies to the Labrador Sea by Western Boundary UnderCurrent (WBUC) were strongly controlled by proximal ice-margin erosion and thus echoed the glacial stage intensity. In contrast, distal WBUC-controlled inputs from NE Atlantic have been less variable, except for a marked increase in surface-sediments that suggests unique modern conditions.

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