Biogenic barium in Cretaceous-Paleogene sediments ...
One of the best-studied aspects of the K-Pg mass extinction is the decline and subsequent recovery of open ocean export productivity (e.g., the flux of organic matter from the surface to deep ocean). Some export proxies, including surface-to-deep water d13C gradients and carbonate sedimentation rate...
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ftdatacite:10.1594/pangaea.829967 2024-09-15T18:37:14+00:00 Biogenic barium in Cretaceous-Paleogene sediments ... Hull, Pincelli M Norris, Richard D 2011 application/zip https://dx.doi.org/10.1594/pangaea.829967 https://doi.pangaea.de/10.1594/PANGAEA.829967 en eng PANGAEA https://dx.doi.org/10.1029/2010pa002082 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Deep Sea Drilling Project DSDP Ocean Drilling Program ODP article Collection Supplementary Publication Series of Datasets 2011 ftdatacite https://doi.org/10.1594/pangaea.82996710.1029/2010pa002082 2024-08-01T10:51:52Z One of the best-studied aspects of the K-Pg mass extinction is the decline and subsequent recovery of open ocean export productivity (e.g., the flux of organic matter from the surface to deep ocean). Some export proxies, including surface-to-deep water d13C gradients and carbonate sedimentation rates, indicate a global decline in export productivity triggered by the extinction. In contrast, benthic foraminiferal and other geochemical productivity proxies suggest spatially and temporally heterogeneous K-Pg boundary effects. Here we address these conflicting export productivity patterns using new and compiled measurements of biogenic barium. Unlike a previous synthesis, we find that the boundary effect on export productivity and the timing of recovery varied considerably between different oceanic sites. The northeast and southwest Atlantic, Southern Ocean, and Indian Ocean records saw export production plummet and remain depressed for 350 thousand to 2 million years. Biogenic barium and other proxies in the ... : Supplement to: Hull, Pincelli M; Norris, Richard D (2011): Diverse patterns of ocean export productivity change across the Cretaceous-Paleogene boundary: New insights from biogenic barium. Paleoceanography, 26(3), PA3205 ... Article in Journal/Newspaper Southern Ocean DataCite |
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English |
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Deep Sea Drilling Project DSDP Ocean Drilling Program ODP |
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Deep Sea Drilling Project DSDP Ocean Drilling Program ODP Hull, Pincelli M Norris, Richard D Biogenic barium in Cretaceous-Paleogene sediments ... |
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Deep Sea Drilling Project DSDP Ocean Drilling Program ODP |
description |
One of the best-studied aspects of the K-Pg mass extinction is the decline and subsequent recovery of open ocean export productivity (e.g., the flux of organic matter from the surface to deep ocean). Some export proxies, including surface-to-deep water d13C gradients and carbonate sedimentation rates, indicate a global decline in export productivity triggered by the extinction. In contrast, benthic foraminiferal and other geochemical productivity proxies suggest spatially and temporally heterogeneous K-Pg boundary effects. Here we address these conflicting export productivity patterns using new and compiled measurements of biogenic barium. Unlike a previous synthesis, we find that the boundary effect on export productivity and the timing of recovery varied considerably between different oceanic sites. The northeast and southwest Atlantic, Southern Ocean, and Indian Ocean records saw export production plummet and remain depressed for 350 thousand to 2 million years. Biogenic barium and other proxies in the ... : Supplement to: Hull, Pincelli M; Norris, Richard D (2011): Diverse patterns of ocean export productivity change across the Cretaceous-Paleogene boundary: New insights from biogenic barium. Paleoceanography, 26(3), PA3205 ... |
format |
Article in Journal/Newspaper |
author |
Hull, Pincelli M Norris, Richard D |
author_facet |
Hull, Pincelli M Norris, Richard D |
author_sort |
Hull, Pincelli M |
title |
Biogenic barium in Cretaceous-Paleogene sediments ... |
title_short |
Biogenic barium in Cretaceous-Paleogene sediments ... |
title_full |
Biogenic barium in Cretaceous-Paleogene sediments ... |
title_fullStr |
Biogenic barium in Cretaceous-Paleogene sediments ... |
title_full_unstemmed |
Biogenic barium in Cretaceous-Paleogene sediments ... |
title_sort |
biogenic barium in cretaceous-paleogene sediments ... |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://dx.doi.org/10.1594/pangaea.829967 https://doi.pangaea.de/10.1594/PANGAEA.829967 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://dx.doi.org/10.1029/2010pa002082 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.82996710.1029/2010pa002082 |
_version_ |
1810481584500899840 |