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 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.956786
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Abstract:
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.
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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
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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
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
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7 datasets
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Datasets listed in this bundled publication
- Pige, N; Suan, G; Buiron, E et al. (2023): Dissolution proxies and coarse fraction of ODP Site 198-1209. https://doi.org/10.1594/PANGAEA.956780
- Pige, N; Suan, G; Buiron, E et al. (2023): Bulk carbonate isotope measurements of the δ13C and δ18O from ODP Site 198-1209. https://doi.org/10.1594/PANGAEA.956778
- Pige, N; Suan, G; Buiron, E et al. (2023): Nannofossil abundances and error bars of 56 SEM and 28 light-polarized microscope samples of ODP Site 198-1209. https://doi.org/10.1594/PANGAEA.956768
- Pige, N; Suan, G; Buiron, E et al. (2023): Reconstruction of nannofossil abundance using the different categories of placolith fragments from ODP Site 198-1209. https://doi.org/10.1594/PANGAEA.956782
- Pige, N; Suan, G; Buiron, E et al. (2023): Discoaster spp. overgrown scale from ODP Site 198-1209. https://doi.org/10.1594/PANGAEA.956781
- Pige, N; Suan, G; Buiron, E et al. (2023): Rarefaction curves of nannofossil from ODP Site 198-1209. https://doi.org/10.1594/PANGAEA.956784
- Pige, N; Suan, G; Buiron, E et al. (2023): ANOVA (Analysis of Variance) performed on the main nannofossil groups. https://doi.org/10.1594/PANGAEA.956776