Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002
A key constraint in attempts to reconstruct the patterns and rates of the ocean's thermohaline circulation during the last glacial period is the difference between the 14C to C ratio in surface and deep water. While imperfect, it is our best index of past deep-sea ventilation rates. In this pap...
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ftdatacite:10.1594/pangaea.839747 2023-05-15T18:00:50+02:00 Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002 Broecker, Wallace S Clark, Elizabeth Hajdas, Irena Bonani, Georges 2004 application/zip https://dx.doi.org/10.1594/pangaea.839747 https://doi.pangaea.de/10.1594/PANGAEA.839747 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2003pa000974 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY article Supplementary Collection of Datasets Collection 2004 ftdatacite https://doi.org/10.1594/pangaea.839747 https://doi.org/10.1029/2003pa000974 2022-02-09T13:20:43Z A key constraint in attempts to reconstruct the patterns and rates of the ocean's thermohaline circulation during the last glacial period is the difference between the 14C to C ratio in surface and deep water. While imperfect, it is our best index of past deep-sea ventilation rates. In this paper we review published ventilation rate estimates based on the measured radiocarbon age difference between coexisting benthic and planktic foraminifera from glacial-age Pacific sediments. We also present new results from a series of eastern equatorial Pacific sediment cores. The conclusion is that the scatter in these results is so large that the apparent 14C age of glacial deep Pacific water could lie anywhere between double and half today's. Further, it is not clear what is responsible for the wide scatter in the radiocarbon results. Article in Journal/Newspaper Planktonic foraminifera DataCite Metadata Store (German National Library of Science and Technology) Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
A key constraint in attempts to reconstruct the patterns and rates of the ocean's thermohaline circulation during the last glacial period is the difference between the 14C to C ratio in surface and deep water. While imperfect, it is our best index of past deep-sea ventilation rates. In this paper we review published ventilation rate estimates based on the measured radiocarbon age difference between coexisting benthic and planktic foraminifera from glacial-age Pacific sediments. We also present new results from a series of eastern equatorial Pacific sediment cores. The conclusion is that the scatter in these results is so large that the apparent 14C age of glacial deep Pacific water could lie anywhere between double and half today's. Further, it is not clear what is responsible for the wide scatter in the radiocarbon results. |
format |
Article in Journal/Newspaper |
author |
Broecker, Wallace S Clark, Elizabeth Hajdas, Irena Bonani, Georges |
spellingShingle |
Broecker, Wallace S Clark, Elizabeth Hajdas, Irena Bonani, Georges Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002 |
author_facet |
Broecker, Wallace S Clark, Elizabeth Hajdas, Irena Bonani, Georges |
author_sort |
Broecker, Wallace S |
title |
Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002 |
title_short |
Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002 |
title_full |
Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002 |
title_fullStr |
Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002 |
title_full_unstemmed |
Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores, supplement to: Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002 |
title_sort |
age determination using benthic and planktonic foraminifera of central pacific ocean sediment cores, supplement to: broecker, wallace s; clark, elizabeth; hajdas, irena; bonani, georges (2004): glacial ventilation rates for the deep pacific ocean. paleoceanography, 19(2), pa2002 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2004 |
url |
https://dx.doi.org/10.1594/pangaea.839747 https://doi.pangaea.de/10.1594/PANGAEA.839747 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.1029/2003pa000974 |
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.839747 https://doi.org/10.1029/2003pa000974 |
_version_ |
1766170094519451648 |