Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157
The freshwater budget of the Arctic Ocean is a key component governing the deep water formation in the North Atlantic and the global climate system. We analyzed the isotopic composition of neodymium (epsilon-Nd) in authigenic phases of marine sediments on the Mendeleev Ridge in the western Arctic Oc...
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ftdatacite:10.1594/pangaea.817616 2023-05-15T14:41:22+02:00 Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157 Jang, Kwangchul Han, Yeongcheol Huh, Youngsook Nam, Seung-Il Stein, Ruediger Mackensen, Andreas Matthiessen, Jens 2013 application/zip https://dx.doi.org/10.1594/pangaea.817616 https://doi.pangaea.de/10.1594/PANGAEA.817616 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.epsl.2013.03.018 https://dx.doi.org/10.1594/pangaea.817509 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Giant box corer ARK-XXIII/3 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Collection article Supplementary Collection of Datasets 2013 ftdatacite https://doi.org/10.1594/pangaea.817616 https://doi.org/10.1016/j.epsl.2013.03.018 https://doi.org/10.1594/pangaea.817509 2021-11-05T12:55:41Z The freshwater budget of the Arctic Ocean is a key component governing the deep water formation in the North Atlantic and the global climate system. We analyzed the isotopic composition of neodymium (epsilon-Nd) in authigenic phases of marine sediments on the Mendeleev Ridge in the western Arctic Ocean spanning an estimated time interval from present to about 75 ka BP. This continuous record was used to reconstruct the epsilon-Nd of the polar deep water (PDW) and changes in freshwater sources to the PDW through time. Three deviations in epsilon-Nd from a long term average of -10.2 were identified at estimated 46-51, 35-39 and 13-21 ka BP. The estimated 46-51 ka BP event can be traced to bursting of ice-dammed lakes accompanying the collapse of the Barents-Kara Ice Sheet, which would have released radiogenic Nd to the eastern Arctic Ocean. The cyclonic surface circulation in the eastern Arctic Ocean must have been stronger than at present for the event to be recorded on the Mendeleev Ridge. For the 35-39 and 13-21 ka BP events, it is likely that the Laurentide Ice Sheet (LIS) supplied the unradiogenic freshwater. The configuration of the anticyclonic circulation in the western Arctic was probably similar to today or expanded eastward. Our simple mass balance calculations suggest that large amounts of freshwater were released but due to significant deep water formation within the Arctic Ocean, the effect on the formation of NADW was probably minor. Article in Journal/Newspaper Arctic Arctic Ocean Ice Sheet NADW North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Andreas ENVELOPE(-60.729,-60.729,-64.008,-64.008) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Giant box corer ARK-XXIII/3 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
spellingShingle |
Giant box corer ARK-XXIII/3 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Jang, Kwangchul Han, Yeongcheol Huh, Youngsook Nam, Seung-Il Stein, Ruediger Mackensen, Andreas Matthiessen, Jens Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157 |
topic_facet |
Giant box corer ARK-XXIII/3 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
description |
The freshwater budget of the Arctic Ocean is a key component governing the deep water formation in the North Atlantic and the global climate system. We analyzed the isotopic composition of neodymium (epsilon-Nd) in authigenic phases of marine sediments on the Mendeleev Ridge in the western Arctic Ocean spanning an estimated time interval from present to about 75 ka BP. This continuous record was used to reconstruct the epsilon-Nd of the polar deep water (PDW) and changes in freshwater sources to the PDW through time. Three deviations in epsilon-Nd from a long term average of -10.2 were identified at estimated 46-51, 35-39 and 13-21 ka BP. The estimated 46-51 ka BP event can be traced to bursting of ice-dammed lakes accompanying the collapse of the Barents-Kara Ice Sheet, which would have released radiogenic Nd to the eastern Arctic Ocean. The cyclonic surface circulation in the eastern Arctic Ocean must have been stronger than at present for the event to be recorded on the Mendeleev Ridge. For the 35-39 and 13-21 ka BP events, it is likely that the Laurentide Ice Sheet (LIS) supplied the unradiogenic freshwater. The configuration of the anticyclonic circulation in the western Arctic was probably similar to today or expanded eastward. Our simple mass balance calculations suggest that large amounts of freshwater were released but due to significant deep water formation within the Arctic Ocean, the effect on the formation of NADW was probably minor. |
format |
Article in Journal/Newspaper |
author |
Jang, Kwangchul Han, Yeongcheol Huh, Youngsook Nam, Seung-Il Stein, Ruediger Mackensen, Andreas Matthiessen, Jens |
author_facet |
Jang, Kwangchul Han, Yeongcheol Huh, Youngsook Nam, Seung-Il Stein, Ruediger Mackensen, Andreas Matthiessen, Jens |
author_sort |
Jang, Kwangchul |
title |
Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157 |
title_short |
Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157 |
title_full |
Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157 |
title_fullStr |
Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157 |
title_full_unstemmed |
Sedimentology and Nd isotope ratios of sediment core PS72/410-1, supplement to: Jang, Kwangchul; Han, Yeongcheol; Huh, Youngsook; Nam, Seung-Il; Stein, Ruediger; Mackensen, Andreas; Matthiessen, Jens (2013): Glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the Mendeleev Ridge, western Arctic Ocean. Earth and Planetary Science Letters, 369-370, 148-157 |
title_sort |
sedimentology and nd isotope ratios of sediment core ps72/410-1, supplement to: jang, kwangchul; han, yeongcheol; huh, youngsook; nam, seung-il; stein, ruediger; mackensen, andreas; matthiessen, jens (2013): glacial freshwater discharge events recorded by authigenic neodymium isotopes in sediments from the mendeleev ridge, western arctic ocean. earth and planetary science letters, 369-370, 148-157 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2013 |
url |
https://dx.doi.org/10.1594/pangaea.817616 https://doi.pangaea.de/10.1594/PANGAEA.817616 |
long_lat |
ENVELOPE(-60.729,-60.729,-64.008,-64.008) |
geographic |
Arctic Arctic Ocean Andreas |
geographic_facet |
Arctic Arctic Ocean Andreas |
genre |
Arctic Arctic Ocean Ice Sheet NADW North Atlantic |
genre_facet |
Arctic Arctic Ocean Ice Sheet NADW North Atlantic |
op_relation |
https://dx.doi.org/10.1016/j.epsl.2013.03.018 https://dx.doi.org/10.1594/pangaea.817509 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.817616 https://doi.org/10.1016/j.epsl.2013.03.018 https://doi.org/10.1594/pangaea.817509 |
_version_ |
1766313151236669440 |