Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes
We present a database of microfossil fragmentation and nannofossil assemblages during the Paleocene-Eocene transition at ODP Site 1209 leg 198 (North Pacific). We propose a new method based on nannofossil fragment counts to reconstruct an all-inclusive nannofossil absolute abundances (entire nannofo...
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2023
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.956786 2024-09-15T18:31:07+00:00 Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes Pige, Nicolas Suan, Guillaume Buiron, Eddy Langlois, Vincent J Mehir, Alyssa Vinçon-Laugier, Arnauld Mattioli, Emanuela MEDIAN LATITUDE: 32.651668 * MEDIAN LONGITUDE: 158.505991 * SOUTH-BOUND LATITUDE: 32.651650 * WEST-BOUND LONGITUDE: 158.505930 * NORTH-BOUND LATITUDE: 32.651800 * EAST-BOUND LONGITUDE: 158.506080 * DATE/TIME START: 2001-09-18T08:00:00 * DATE/TIME END: 2001-09-23T04:30:00 2023 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.956786 https://doi.org/10.1594/PANGAEA.956786 en eng PANGAEA Pige, Nicolas; Suan, Guillaume; Buiron, Eddy; Langlois, Vincent J; Mehir, Alyssa; Vinçon-Laugier, Arnauld; Mattioli, Emanuela (2023): Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): Implication for reconstructing nannofossil fluxes. Marine Micropaleontology, 179, 102213, https://doi.org/10.1016/j.marmicro.2023.102213 https://doi.pangaea.de/10.1594/PANGAEA.956786 https://doi.org/10.1594/PANGAEA.956786 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Calcareous nannofossils Microfossil fragmentation Paleocene-Eocene transition dataset bundled publication 2023 ftpangaea https://doi.org/10.1594/PANGAEA.95678610.1016/j.marmicro.2023.102213 2024-07-24T02:31:21Z We present a database of microfossil fragmentation and nannofossil assemblages during the Paleocene-Eocene transition at ODP Site 1209 leg 198 (North Pacific). We propose a new method based on nannofossil fragment counts to reconstruct an all-inclusive nannofossil absolute abundances (entire nannofossils plus fragments). Using nannofossil assemblages and foraminiferal-based dissolution proxies we detect a 400 kyrs dissolution event occurring some 300 kyrs before the Paleocene-Eocene Thermal Maximum. A total of 56 samples were analysed using a scanning electron microscope (SEM) and 28 were analysed with a light-polarized microscope. Samples were prepared using a slightly modified version of the settling method described by Beaufort et al. (2014; doi:10.1038/nprot.2014.028). For each sample, the depth (slightly modified from Westerhold et al. (2018; doi:10.1029/2017PA003306), weight and studied surface area are reported. The counts, absolute and relative abundances of entire nannofossils and fragment groups benefit from a confidence interval at 95% (calculated according to Suchéras-Marx et al., 2019; doi:10.1016/j.marmicro.2019.101751) as well as the nannofossil fragmentation. A statistical treatment (Analysis of Variance) of the main nannofossil groups was performed using the software Past4.0 to compare the results of the analysis performed using SEM and light-polarized microscope. The reconstruction of nannofossil abundance using the different categories of placolith fragments is provided with the 95% confidence interval. Overgrown and dissolution were assessed using a Discoaster spp. overgrowth scale based on Dedert et al. (2014; doi:0.1016/j.marmicro.2013.12.004) and dissolution proxies (planktonic foraminifera fragmentation %, benthic/planktonic ratio %, sediment coarse fraction %). All these proxies have a 95% confidence interval except the coarse fraction from which the weighting error is provided. Finally, our database includes 73 bulk carbonate isotope measurements of the δ13C and δ18O. Other/Unknown Material Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(158.505930,158.506080,32.651800,32.651650) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Calcareous nannofossils Microfossil fragmentation Paleocene-Eocene transition |
spellingShingle |
Calcareous nannofossils Microfossil fragmentation Paleocene-Eocene transition Pige, Nicolas Suan, Guillaume Buiron, Eddy Langlois, Vincent J Mehir, Alyssa Vinçon-Laugier, Arnauld Mattioli, Emanuela Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes |
topic_facet |
Calcareous nannofossils Microfossil fragmentation Paleocene-Eocene transition |
description |
We present a database of microfossil fragmentation and nannofossil assemblages during the Paleocene-Eocene transition at ODP Site 1209 leg 198 (North Pacific). We propose a new method based on nannofossil fragment counts to reconstruct an all-inclusive nannofossil absolute abundances (entire nannofossils plus fragments). Using nannofossil assemblages and foraminiferal-based dissolution proxies we detect a 400 kyrs dissolution event occurring some 300 kyrs before the Paleocene-Eocene Thermal Maximum. A total of 56 samples were analysed using a scanning electron microscope (SEM) and 28 were analysed with a light-polarized microscope. Samples were prepared using a slightly modified version of the settling method described by Beaufort et al. (2014; doi:10.1038/nprot.2014.028). For each sample, the depth (slightly modified from Westerhold et al. (2018; doi:10.1029/2017PA003306), weight and studied surface area are reported. The counts, absolute and relative abundances of entire nannofossils and fragment groups benefit from a confidence interval at 95% (calculated according to Suchéras-Marx et al., 2019; doi:10.1016/j.marmicro.2019.101751) as well as the nannofossil fragmentation. A statistical treatment (Analysis of Variance) of the main nannofossil groups was performed using the software Past4.0 to compare the results of the analysis performed using SEM and light-polarized microscope. The reconstruction of nannofossil abundance using the different categories of placolith fragments is provided with the 95% confidence interval. Overgrown and dissolution were assessed using a Discoaster spp. overgrowth scale based on Dedert et al. (2014; doi:0.1016/j.marmicro.2013.12.004) and dissolution proxies (planktonic foraminifera fragmentation %, benthic/planktonic ratio %, sediment coarse fraction %). All these proxies have a 95% confidence interval except the coarse fraction from which the weighting error is provided. Finally, our database includes 73 bulk carbonate isotope measurements of the δ13C and δ18O. |
format |
Other/Unknown Material |
author |
Pige, Nicolas Suan, Guillaume Buiron, Eddy Langlois, Vincent J Mehir, Alyssa Vinçon-Laugier, Arnauld Mattioli, Emanuela |
author_facet |
Pige, Nicolas Suan, Guillaume Buiron, Eddy Langlois, Vincent J Mehir, Alyssa Vinçon-Laugier, Arnauld Mattioli, Emanuela |
author_sort |
Pige, Nicolas |
title |
Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes |
title_short |
Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes |
title_full |
Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes |
title_fullStr |
Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes |
title_full_unstemmed |
Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): implication for reconstructing nannofossil fluxes |
title_sort |
microfossil fragmentation across the paleocene-eocene transition at odp site 1209 (north pacific): implication for reconstructing nannofossil fluxes |
publisher |
PANGAEA |
publishDate |
2023 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.956786 https://doi.org/10.1594/PANGAEA.956786 |
op_coverage |
MEDIAN LATITUDE: 32.651668 * MEDIAN LONGITUDE: 158.505991 * SOUTH-BOUND LATITUDE: 32.651650 * WEST-BOUND LONGITUDE: 158.505930 * NORTH-BOUND LATITUDE: 32.651800 * EAST-BOUND LONGITUDE: 158.506080 * DATE/TIME START: 2001-09-18T08:00:00 * DATE/TIME END: 2001-09-23T04:30:00 |
long_lat |
ENVELOPE(158.505930,158.506080,32.651800,32.651650) |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
Pige, Nicolas; Suan, Guillaume; Buiron, Eddy; Langlois, Vincent J; Mehir, Alyssa; Vinçon-Laugier, Arnauld; Mattioli, Emanuela (2023): Microfossil fragmentation across the Paleocene-Eocene transition at ODP Site 1209 (North Pacific): Implication for reconstructing nannofossil fluxes. Marine Micropaleontology, 179, 102213, https://doi.org/10.1016/j.marmicro.2023.102213 https://doi.pangaea.de/10.1594/PANGAEA.956786 https://doi.org/10.1594/PANGAEA.956786 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.95678610.1016/j.marmicro.2023.102213 |
_version_ |
1810472734362173440 |