Radiogenic Nd isotope signatures and REE concentrations of marine sediments (bulk and detrital), foraminifera and dolostone grains from 4 sediment downcore records from the Labrador Sea ...

This dataset includes the results of the analysis of 4 marine sediment downcore records recovered from the Labrador Sea: core MD99-2227 (58° 12.38 N, 48° 22.22 W, 3460 m); core HU08-029-004 (61°27.49 N, 58°02.11 W, 2674 m); HU84-030-021 (58°22.06 N, 57°30.42 W, 2853 m); core HU91-045-094,(50°12.26 N...

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Bibliographic Details
Main Authors: Filippova, Alexandra, Frank, Martin, Kienast, Markus, Gutjahr, Marcus, Hathorne, Ed C, Hillaire-Marcel, Claude
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2022
Subjects:
AMOC
carbonate dissolution
dolostone
Heinrich Stadials
Labrador Sea
Late Quaternary
Neodymium isotopes
Online Access:https://dx.doi.org/10.1594/pangaea.952659
https://doi.pangaea.de/10.1594/PANGAEA.952659
Description
Summary:This dataset includes the results of the analysis of 4 marine sediment downcore records recovered from the Labrador Sea: core MD99-2227 (58° 12.38 N, 48° 22.22 W, 3460 m); core HU08-029-004 (61°27.49 N, 58°02.11 W, 2674 m); HU84-030-021 (58°22.06 N, 57°30.42 W, 2853 m); core HU91-045-094,(50°12.26 N, 45°41.14 W, 3448 m) as well as a set of surface sediment samples. Analysis includes measurement of the radiogenic Nd isotope signatures in the authigenic Fe-Mn oxyhydroxide fraction of the bulk sediment (leachates) and of the totally dissolved residual silicate (detrital) as well as analysis of uncleaned foraminifera. Data complemented by measurements of the Rare Earth Element concentrations, some major elements (Fe, Mg, Ca, Al) and radiogenic Nd isotope signatures of the dolostone grains, picked from wet-sieved < 63µm sediment fraction of marine sediment downcores. The downcore records were sampled with resolution of about 1 kyr and cover roughly the last 33 ka. ...

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