Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ...
The presented data originates from the 1306cm long gravity core MSM45-19-2 (58°45.68 N, 61°56.25 W, 202m water depth) taken during R/V Maria S. Merian cruise MSM45 in August 2015 at 202 m water depth on the northern Labrador Shelf, northeast Canada, northwest Atlantic.Here, we present a high-resolut...
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ftdatacite:10.1594/pangaea.945715 2024-09-30T14:36:17+00:00 Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ... Lochte, Annalena Antonia Schneider, Ralph R 2022 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.945715 https://doi.pangaea.de/10.1594/PANGAEA.945715 en eng PANGAEA https://dx.doi.org/10.1038/s41467-019-08408-6 https://dx.doi.org/10.1038/ngeo1859 https://dx.doi.org/10.1029/2001gc000280 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 8.2 ka event Labrador Sea Mg/Ca-based paleotemperatures stable oxygen isotopes DEPTH, sediment/rock AGE Islandiella helenae, Magnesium/Calcium ratio Islandiella helenae, Magnesium/Calcium ratio, standard deviation Bottom water temperature Bottom water temperature, standard deviation Islandiella helenae, δ18O δ18O, seawater, reconstructed δ18O, ice volume free, seawater Gravity corer Inductively coupled plasma-optical emission spectrometer ICP-OES, Thermo Electron, Iris Intrepid II Mass spectrometer, Thermo Finnigan, MAT 253 Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios and d18O and corrected for ice volume MSM45 Maria S. Merian Dataset dataset 2022 ftdatacite https://doi.org/10.1594/pangaea.94571510.1038/s41467-019-08408-610.1038/ngeo185910.1029/2001gc000280 2024-09-02T07:52:48Z The presented data originates from the 1306cm long gravity core MSM45-19-2 (58°45.68 N, 61°56.25 W, 202m water depth) taken during R/V Maria S. Merian cruise MSM45 in August 2015 at 202 m water depth on the northern Labrador Shelf, northeast Canada, northwest Atlantic.Here, we present a high-resolution and well-dated sediment record from the northern Labrador Shelf that provides new evidence of the freshwater signature and the mechanisms involved in the Hudson Bay Ice Saddle collapse. A combination of Mg/Ca ratios and stable oxygen isotopes of benthic foraminifera indicate temperature changes and freshening of Labrador Shelf bottom waters.About 60 specimens of I. helenae were handpicked from the 200–315 μm fraction in 5-cm intervals downcore, weighed, and crushed between two glass plates. The crushed samples were then split for Mg/Ca and stable isotope measurements (see below). About two thirds of each crushed sample was transferred into pre-leached Eppendorf vials and cleaned following the full protocol of ... Dataset Hudson Bay Labrador Sea DataCite Canada Hudson Hudson Bay Labrador Shelf ENVELOPE(-58.000,-58.000,56.000,56.000) |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
8.2 ka event Labrador Sea Mg/Ca-based paleotemperatures stable oxygen isotopes DEPTH, sediment/rock AGE Islandiella helenae, Magnesium/Calcium ratio Islandiella helenae, Magnesium/Calcium ratio, standard deviation Bottom water temperature Bottom water temperature, standard deviation Islandiella helenae, δ18O δ18O, seawater, reconstructed δ18O, ice volume free, seawater Gravity corer Inductively coupled plasma-optical emission spectrometer ICP-OES, Thermo Electron, Iris Intrepid II Mass spectrometer, Thermo Finnigan, MAT 253 Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios and d18O and corrected for ice volume MSM45 Maria S. Merian |
spellingShingle |
8.2 ka event Labrador Sea Mg/Ca-based paleotemperatures stable oxygen isotopes DEPTH, sediment/rock AGE Islandiella helenae, Magnesium/Calcium ratio Islandiella helenae, Magnesium/Calcium ratio, standard deviation Bottom water temperature Bottom water temperature, standard deviation Islandiella helenae, δ18O δ18O, seawater, reconstructed δ18O, ice volume free, seawater Gravity corer Inductively coupled plasma-optical emission spectrometer ICP-OES, Thermo Electron, Iris Intrepid II Mass spectrometer, Thermo Finnigan, MAT 253 Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios and d18O and corrected for ice volume MSM45 Maria S. Merian Lochte, Annalena Antonia Schneider, Ralph R Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ... |
topic_facet |
8.2 ka event Labrador Sea Mg/Ca-based paleotemperatures stable oxygen isotopes DEPTH, sediment/rock AGE Islandiella helenae, Magnesium/Calcium ratio Islandiella helenae, Magnesium/Calcium ratio, standard deviation Bottom water temperature Bottom water temperature, standard deviation Islandiella helenae, δ18O δ18O, seawater, reconstructed δ18O, ice volume free, seawater Gravity corer Inductively coupled plasma-optical emission spectrometer ICP-OES, Thermo Electron, Iris Intrepid II Mass spectrometer, Thermo Finnigan, MAT 253 Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios and d18O and corrected for ice volume MSM45 Maria S. Merian |
description |
The presented data originates from the 1306cm long gravity core MSM45-19-2 (58°45.68 N, 61°56.25 W, 202m water depth) taken during R/V Maria S. Merian cruise MSM45 in August 2015 at 202 m water depth on the northern Labrador Shelf, northeast Canada, northwest Atlantic.Here, we present a high-resolution and well-dated sediment record from the northern Labrador Shelf that provides new evidence of the freshwater signature and the mechanisms involved in the Hudson Bay Ice Saddle collapse. A combination of Mg/Ca ratios and stable oxygen isotopes of benthic foraminifera indicate temperature changes and freshening of Labrador Shelf bottom waters.About 60 specimens of I. helenae were handpicked from the 200–315 μm fraction in 5-cm intervals downcore, weighed, and crushed between two glass plates. The crushed samples were then split for Mg/Ca and stable isotope measurements (see below). About two thirds of each crushed sample was transferred into pre-leached Eppendorf vials and cleaned following the full protocol of ... |
format |
Dataset |
author |
Lochte, Annalena Antonia Schneider, Ralph R |
author_facet |
Lochte, Annalena Antonia Schneider, Ralph R |
author_sort |
Lochte, Annalena Antonia |
title |
Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ... |
title_short |
Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ... |
title_full |
Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ... |
title_fullStr |
Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ... |
title_full_unstemmed |
Stable isotopes and Mg/Ca of sediment core MSM45/19-2 ... |
title_sort |
stable isotopes and mg/ca of sediment core msm45/19-2 ... |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://dx.doi.org/10.1594/pangaea.945715 https://doi.pangaea.de/10.1594/PANGAEA.945715 |
long_lat |
ENVELOPE(-58.000,-58.000,56.000,56.000) |
geographic |
Canada Hudson Hudson Bay Labrador Shelf |
geographic_facet |
Canada Hudson Hudson Bay Labrador Shelf |
genre |
Hudson Bay Labrador Sea |
genre_facet |
Hudson Bay Labrador Sea |
op_relation |
https://dx.doi.org/10.1038/s41467-019-08408-6 https://dx.doi.org/10.1038/ngeo1859 https://dx.doi.org/10.1029/2001gc000280 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.94571510.1038/s41467-019-08408-610.1038/ngeo185910.1029/2001gc000280 |
_version_ |
1811639384103976960 |