Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676
A comparison of cadmium/calcium (Cd/Ca) records of benthic foraminifera from a deep Cape Basin and a deep eastern equatorial Pacific core suggests that over the past 400,000 years, the nutrient concentration of Circumpolar Deep Water (CPDW) has always been lower than that of the deep Pacific. The da...
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1994
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ftdatacite:10.1594/pangaea.729789 2023-05-15T16:41:00+02:00 Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676 Oppo, Delia W Rosenthal, Yair 1994 application/zip https://dx.doi.org/10.1594/pangaea.729789 https://doi.pangaea.de/10.1594/PANGAEA.729789 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/93pa02199 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Piston corer RC13 Robert Conrad Lamont-Doherty Earth Observatory, Columbia University LDEO Collection article Supplementary Collection of Datasets 1994 ftdatacite https://doi.org/10.1594/pangaea.729789 https://doi.org/10.1029/93pa02199 2021-11-05T12:55:41Z A comparison of cadmium/calcium (Cd/Ca) records of benthic foraminifera from a deep Cape Basin and a deep eastern equatorial Pacific core suggests that over the past 400,000 years, the nutrient concentration of Circumpolar Deep Water (CPDW) has always been lower than that of the deep Pacific. The data further suggest that at the 100,000- and 23,000-year orbital periods, the contribution of North Atlantic Deep Water to CPDW is at a maximum during periods of ice growth and at a minimum during periods of ice decay. These results are not in agreement with results based on carbon isotope records of benthic foraminifera, which suggest intervals of CPDW nutrient enrichment relative to the deep Pacific and an approximately in-phase relationship between CPDW nutrient concentration and ice volume. Resolution of the apparent conflict between delta13C and Cd/Ca data may provide important constraints on past deep-ocean circulation and nutrient variability. Article in Journal/Newspaper Ice Sheet North Atlantic Deep Water North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Pacific Rosenthal ENVELOPE(-64.283,-64.283,-64.600,-64.600) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Piston corer RC13 Robert Conrad Lamont-Doherty Earth Observatory, Columbia University LDEO |
spellingShingle |
Piston corer RC13 Robert Conrad Lamont-Doherty Earth Observatory, Columbia University LDEO Oppo, Delia W Rosenthal, Yair Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676 |
topic_facet |
Piston corer RC13 Robert Conrad Lamont-Doherty Earth Observatory, Columbia University LDEO |
description |
A comparison of cadmium/calcium (Cd/Ca) records of benthic foraminifera from a deep Cape Basin and a deep eastern equatorial Pacific core suggests that over the past 400,000 years, the nutrient concentration of Circumpolar Deep Water (CPDW) has always been lower than that of the deep Pacific. The data further suggest that at the 100,000- and 23,000-year orbital periods, the contribution of North Atlantic Deep Water to CPDW is at a maximum during periods of ice growth and at a minimum during periods of ice decay. These results are not in agreement with results based on carbon isotope records of benthic foraminifera, which suggest intervals of CPDW nutrient enrichment relative to the deep Pacific and an approximately in-phase relationship between CPDW nutrient concentration and ice volume. Resolution of the apparent conflict between delta13C and Cd/Ca data may provide important constraints on past deep-ocean circulation and nutrient variability. |
format |
Article in Journal/Newspaper |
author |
Oppo, Delia W Rosenthal, Yair |
author_facet |
Oppo, Delia W Rosenthal, Yair |
author_sort |
Oppo, Delia W |
title |
Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676 |
title_short |
Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676 |
title_full |
Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676 |
title_fullStr |
Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676 |
title_full_unstemmed |
Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676 |
title_sort |
organic carbon concentrations and cd/ca ratios of sediment core rc13-229, supplement to: oppo, delia w; rosenthal, yair (1994): cd/ca changes in a deep cape basin core over the past 730,000 years: response of circumpolar deepwater variability to northern hemisphere ice sheet melting? paleoceanography, 9(5), 661-676 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1994 |
url |
https://dx.doi.org/10.1594/pangaea.729789 https://doi.pangaea.de/10.1594/PANGAEA.729789 |
long_lat |
ENVELOPE(-64.283,-64.283,-64.600,-64.600) |
geographic |
Pacific Rosenthal |
geographic_facet |
Pacific Rosenthal |
genre |
Ice Sheet North Atlantic Deep Water North Atlantic |
genre_facet |
Ice Sheet North Atlantic Deep Water North Atlantic |
op_relation |
https://dx.doi.org/10.1029/93pa02199 |
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.729789 https://doi.org/10.1029/93pa02199 |
_version_ |
1766031440162586624 |