(Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017
Oxygen and carbon isotopic data were produced on the benthic foraminiferal taxa Cibicidoides and Planulina from 25 new piston cores, gravity cores, and multicores from the Brazil margin. The cores span water depths from about 400 to 3000 m and intersect the major water masses in this region. These n...
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ftdatacite:10.1594/pangaea.837321 2023-05-15T18:21:18+02:00 (Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017 Curry, William B Oppo, Delia W 2005 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.837321 https://doi.pangaea.de/10.1594/PANGAEA.837321 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2004pa001021 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Foraminifera, benthic δ13C Foraminifera, benthic δ18O Comment Giant gravity corer MultiCorer Jumbo Piston Core KN159-5 Knorr Dataset dataset Supplementary Dataset 2005 ftdatacite https://doi.org/10.1594/pangaea.837321 https://doi.org/10.1029/2004pa001021 2022-02-09T13:18:59Z Oxygen and carbon isotopic data were produced on the benthic foraminiferal taxa Cibicidoides and Planulina from 25 new piston cores, gravity cores, and multicores from the Brazil margin. The cores span water depths from about 400 to 3000 m and intersect the major water masses in this region. These new data fill a critical gap in the South Atlantic Ocean and provide the motivation for updating the classic glacial western Atlantic d13C transect of Duplessy et al. (1988). The distribution of 13C of SumCO2 requires the presence of three distinct water masses in the glacial Atlantic Ocean: a shallow (~1000 m), southern source water mass with an end-member d13C value of about 0.3–0.5 per mil VPDB, a middepth (~1500 m), northern source water mass with an end-member value of about 1.5 per mil, and a deep (>2000 m), southern source water with an end-member value of less than -0.2 per mil, and perhaps as low as the -0.9 per mil values observed in the South Atlantic sector of the Southern Ocean (Ninnemann and Charles, 2002, doi:10.1016/S0012-821X(02)00708-2). The origins of the water masses are supported by the meridional gradients in benthic foraminiferal d18O. A revised glacial section of deep water d13C documents the positions and gradients among these end-member intermediate and deep water masses. The large property gradients in the presence of strong vertical mixing can only be maintained by a vigorous overturning circulation. Dataset South Atlantic Ocean Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Foraminifera, benthic δ13C Foraminifera, benthic δ18O Comment Giant gravity corer MultiCorer Jumbo Piston Core KN159-5 Knorr |
spellingShingle |
Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Foraminifera, benthic δ13C Foraminifera, benthic δ18O Comment Giant gravity corer MultiCorer Jumbo Piston Core KN159-5 Knorr Curry, William B Oppo, Delia W (Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017 |
topic_facet |
Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Foraminifera, benthic δ13C Foraminifera, benthic δ18O Comment Giant gravity corer MultiCorer Jumbo Piston Core KN159-5 Knorr |
description |
Oxygen and carbon isotopic data were produced on the benthic foraminiferal taxa Cibicidoides and Planulina from 25 new piston cores, gravity cores, and multicores from the Brazil margin. The cores span water depths from about 400 to 3000 m and intersect the major water masses in this region. These new data fill a critical gap in the South Atlantic Ocean and provide the motivation for updating the classic glacial western Atlantic d13C transect of Duplessy et al. (1988). The distribution of 13C of SumCO2 requires the presence of three distinct water masses in the glacial Atlantic Ocean: a shallow (~1000 m), southern source water mass with an end-member d13C value of about 0.3–0.5 per mil VPDB, a middepth (~1500 m), northern source water mass with an end-member value of about 1.5 per mil, and a deep (>2000 m), southern source water with an end-member value of less than -0.2 per mil, and perhaps as low as the -0.9 per mil values observed in the South Atlantic sector of the Southern Ocean (Ninnemann and Charles, 2002, doi:10.1016/S0012-821X(02)00708-2). The origins of the water masses are supported by the meridional gradients in benthic foraminiferal d18O. A revised glacial section of deep water d13C documents the positions and gradients among these end-member intermediate and deep water masses. The large property gradients in the presence of strong vertical mixing can only be maintained by a vigorous overturning circulation. |
format |
Dataset |
author |
Curry, William B Oppo, Delia W |
author_facet |
Curry, William B Oppo, Delia W |
author_sort |
Curry, William B |
title |
(Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017 |
title_short |
(Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017 |
title_full |
(Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017 |
title_fullStr |
(Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017 |
title_full_unstemmed |
(Table S1) Stable carbon and oxygen isotope ratios of benthic foraminifera of the western Atlantic Ocean, supplement to: Curry, William B; Oppo, Delia W (2005): Glacial water mass geometry and the distribution of d13C of SumCO2 in the western Atlantic Ocean. Paleoceanography, 20(1), PA1017 |
title_sort |
(table s1) stable carbon and oxygen isotope ratios of benthic foraminifera of the western atlantic ocean, supplement to: curry, william b; oppo, delia w (2005): glacial water mass geometry and the distribution of d13c of sumco2 in the western atlantic ocean. paleoceanography, 20(1), pa1017 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2005 |
url |
https://dx.doi.org/10.1594/pangaea.837321 https://doi.pangaea.de/10.1594/PANGAEA.837321 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
South Atlantic Ocean Southern Ocean |
genre_facet |
South Atlantic Ocean Southern Ocean |
op_relation |
https://dx.doi.org/10.1029/2004pa001021 |
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.837321 https://doi.org/10.1029/2004pa001021 |
_version_ |
1766200481030340608 |