Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142
Understanding changes in export production through time provides insight into the response of the biological pump to global climate change, particularly during periods of rapid climate change. In this study we consider what role changes in export production may have had on carbon sequestration and h...
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ftdatacite:10.1594/pangaea.824104 2023-05-15T13:56:06+02:00 Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142 Erhardt, Andrea M Pälike, Heiko Paytan, Adina 2013 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.824104 https://doi.pangaea.de/10.1594/PANGAEA.824104 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2012pa002347 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Sample code/label DEPTH, sediment/rock AGE Age, reference Density, dry bulk Sedimentation rate Accumulation rate, sediment, mean Sample mass Mass Barite Accumulation rate, barite Drilling/drill rig DSDP/ODP/IODP sample designation Exp320 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Supplementary Dataset dataset Dataset 2013 ftdatacite https://doi.org/10.1594/pangaea.824104 https://doi.org/10.1029/2012pa002347 2021-11-05T12:55:41Z Understanding changes in export production through time provides insight into the response of the biological pump to global climate change, particularly during periods of rapid climate change. In this study we consider what role changes in export production may have had on carbon sequestration and how this may have contributed to the onset of the Eocene-Oligocene transition (EOT). In addition, we consider if these export production variations are dominantly controlled by orbitally driven climate variability. To accomplish these objectives, we report changes in export production in the Eastern Equatorial Pacific (EEP) from Site U1333 across the EOT reconstructed from a high-resolution record of marine barite accumulation rates (BAR). BAR fluctuations suggest synchronous declines in export production associated with the two-step increases in oxygen isotopes that define the transition. The reduction in productivity across the EOT suggests that the biological pump did not contribute to carbon sequestration and the cooling over this transition. We also report a previously undocumented peak in EEP export productivity before the EOT onset. This peak is consistent with export production proxies from the Southern Ocean, potentially implying a global driver for this precursor event. We propose that this enhanced export production and the associated carbon sequestration in the late Eocene may have contributed to the pCO2 drawdown at the onset of Antarctic glaciation. Dataset Antarc* Antarctic Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sample code/label DEPTH, sediment/rock AGE Age, reference Density, dry bulk Sedimentation rate Accumulation rate, sediment, mean Sample mass Mass Barite Accumulation rate, barite Drilling/drill rig DSDP/ODP/IODP sample designation Exp320 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
Sample code/label DEPTH, sediment/rock AGE Age, reference Density, dry bulk Sedimentation rate Accumulation rate, sediment, mean Sample mass Mass Barite Accumulation rate, barite Drilling/drill rig DSDP/ODP/IODP sample designation Exp320 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Erhardt, Andrea M Pälike, Heiko Paytan, Adina Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142 |
topic_facet |
Sample code/label DEPTH, sediment/rock AGE Age, reference Density, dry bulk Sedimentation rate Accumulation rate, sediment, mean Sample mass Mass Barite Accumulation rate, barite Drilling/drill rig DSDP/ODP/IODP sample designation Exp320 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
Understanding changes in export production through time provides insight into the response of the biological pump to global climate change, particularly during periods of rapid climate change. In this study we consider what role changes in export production may have had on carbon sequestration and how this may have contributed to the onset of the Eocene-Oligocene transition (EOT). In addition, we consider if these export production variations are dominantly controlled by orbitally driven climate variability. To accomplish these objectives, we report changes in export production in the Eastern Equatorial Pacific (EEP) from Site U1333 across the EOT reconstructed from a high-resolution record of marine barite accumulation rates (BAR). BAR fluctuations suggest synchronous declines in export production associated with the two-step increases in oxygen isotopes that define the transition. The reduction in productivity across the EOT suggests that the biological pump did not contribute to carbon sequestration and the cooling over this transition. We also report a previously undocumented peak in EEP export productivity before the EOT onset. This peak is consistent with export production proxies from the Southern Ocean, potentially implying a global driver for this precursor event. We propose that this enhanced export production and the associated carbon sequestration in the late Eocene may have contributed to the pCO2 drawdown at the onset of Antarctic glaciation. |
format |
Dataset |
author |
Erhardt, Andrea M Pälike, Heiko Paytan, Adina |
author_facet |
Erhardt, Andrea M Pälike, Heiko Paytan, Adina |
author_sort |
Erhardt, Andrea M |
title |
Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142 |
title_short |
Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142 |
title_full |
Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142 |
title_fullStr |
Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142 |
title_full_unstemmed |
Mass accumulation rates of IODP Hole 320-U1333C, supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142 |
title_sort |
mass accumulation rates of iodp hole 320-u1333c, supplement to: erhardt, andrea m; pälike, heiko; paytan, adina (2013): high-resolution record of export production in the eastern equatorial pacific across the eocene-oligocene transition and relationships to global climatic records. paleoceanography, 28(1), 130-142 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2013 |
url |
https://dx.doi.org/10.1594/pangaea.824104 https://doi.pangaea.de/10.1594/PANGAEA.824104 |
geographic |
Antarctic Southern Ocean Pacific |
geographic_facet |
Antarctic Southern Ocean Pacific |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
https://dx.doi.org/10.1029/2012pa002347 |
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.824104 https://doi.org/10.1029/2012pa002347 |
_version_ |
1766263352100651008 |