Neodymium isotope signature of Holocene corals
The neodymium isotopic composition of marine precipitates is increasingly recognized as a powerful tool for identifying changes in ocean circulation and mixing on million year to millennial timescales. Unlike nutrient proxies such as d13C or Cd/Ca, Nd isotopes are not thought to be altered in any si...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.833680 2023-05-15T17:27:30+02:00 Neodymium isotope signature of Holocene corals van de Flierdt, Tina Robinson, Laura F Adkins, Jess F Hemming, Sidney R Goldstein, Steven L LATITUDE: 39.000000 * LONGITUDE: -61.000000 2006-06-27 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.833680 https://doi.org/10.1594/PANGAEA.833680 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.833680 https://doi.org/10.1594/PANGAEA.833680 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: van de Flierdt, Tina; Robinson, Laura F; Adkins, Jess F; Hemming, Sidney R; Goldstein, Steven L (2006): Temporal stability of the neodymium isotope signature of the Holocene to glacial North Atlantic. Paleoceanography, 21, PA4102, https://doi.org/10.1029/2006PA001294 Gregg_Seamount North Atlantic Dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.833680 https://doi.org/10.1029/2006PA001294 2023-01-20T07:33:18Z The neodymium isotopic composition of marine precipitates is increasingly recognized as a powerful tool for identifying changes in ocean circulation and mixing on million year to millennial timescales. Unlike nutrient proxies such as d13C or Cd/Ca, Nd isotopes are not thought to be altered in any significant way by biological processes, and thus they can serve as a quasi-conservative water mass tracer. However, the application of Nd isotopes in understanding the role of thermohaline circulation in rapid climate change is currently hindered by the lack of direct constraints on the signature of the North Atlantic end-member through time. Here we present the first results of Nd isotopes measured in U-Th-dated deep-sea corals from the New England seamounts in the northwest Atlantic Ocean. Our data are consistent with the conclusion that the Nd isotopic composition of North Atlantic deep and intermediate water has remained nearly constant through the last glacial cycle. The results address long-standing concerns that there may have been significant changes in the Nd isotopic composition of the North Atlantic end-member during this interval and substantiate the applicability of this novel tracer on millennial timescales for paleoceanography research. Dataset North Atlantic Northwest Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-61.000000,-61.000000,39.000000,39.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Gregg_Seamount North Atlantic |
spellingShingle |
Gregg_Seamount North Atlantic van de Flierdt, Tina Robinson, Laura F Adkins, Jess F Hemming, Sidney R Goldstein, Steven L Neodymium isotope signature of Holocene corals |
topic_facet |
Gregg_Seamount North Atlantic |
description |
The neodymium isotopic composition of marine precipitates is increasingly recognized as a powerful tool for identifying changes in ocean circulation and mixing on million year to millennial timescales. Unlike nutrient proxies such as d13C or Cd/Ca, Nd isotopes are not thought to be altered in any significant way by biological processes, and thus they can serve as a quasi-conservative water mass tracer. However, the application of Nd isotopes in understanding the role of thermohaline circulation in rapid climate change is currently hindered by the lack of direct constraints on the signature of the North Atlantic end-member through time. Here we present the first results of Nd isotopes measured in U-Th-dated deep-sea corals from the New England seamounts in the northwest Atlantic Ocean. Our data are consistent with the conclusion that the Nd isotopic composition of North Atlantic deep and intermediate water has remained nearly constant through the last glacial cycle. The results address long-standing concerns that there may have been significant changes in the Nd isotopic composition of the North Atlantic end-member during this interval and substantiate the applicability of this novel tracer on millennial timescales for paleoceanography research. |
format |
Dataset |
author |
van de Flierdt, Tina Robinson, Laura F Adkins, Jess F Hemming, Sidney R Goldstein, Steven L |
author_facet |
van de Flierdt, Tina Robinson, Laura F Adkins, Jess F Hemming, Sidney R Goldstein, Steven L |
author_sort |
van de Flierdt, Tina |
title |
Neodymium isotope signature of Holocene corals |
title_short |
Neodymium isotope signature of Holocene corals |
title_full |
Neodymium isotope signature of Holocene corals |
title_fullStr |
Neodymium isotope signature of Holocene corals |
title_full_unstemmed |
Neodymium isotope signature of Holocene corals |
title_sort |
neodymium isotope signature of holocene corals |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.833680 https://doi.org/10.1594/PANGAEA.833680 |
op_coverage |
LATITUDE: 39.000000 * LONGITUDE: -61.000000 |
long_lat |
ENVELOPE(-61.000000,-61.000000,39.000000,39.000000) |
genre |
North Atlantic Northwest Atlantic |
genre_facet |
North Atlantic Northwest Atlantic |
op_source |
Supplement to: van de Flierdt, Tina; Robinson, Laura F; Adkins, Jess F; Hemming, Sidney R; Goldstein, Steven L (2006): Temporal stability of the neodymium isotope signature of the Holocene to glacial North Atlantic. Paleoceanography, 21, PA4102, https://doi.org/10.1029/2006PA001294 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.833680 https://doi.org/10.1594/PANGAEA.833680 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.833680 https://doi.org/10.1029/2006PA001294 |
_version_ |
1766119645745512448 |