North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition
Utrecht University, The Netherlands (1); Unviersity of Bergen, Norway (2) The Eocene–Oligocene Transition (EOT, ~34 Ma), is marked by the rapid development of semi-permanent Antarctic ice-sheet1. Foraminiferal stable oxygen isotopes (δ18O) as well as Mg/Ca and other indicators (e.g. ice-rafted debri...
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ftdatacite:10.48380/dggv-50x0-6c15 2023-05-15T13:30:24+02:00 North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition Kocken, Ilja Japhir van der Veen, Kasper Müller, Inigo R. Meckler, Anna Nele Ziegler, Martin 2020 https://dx.doi.org/10.48380/dggv-50x0-6c15 https://www.dggv.de/publikationen/dggv-e-publikationen/publication/80.html en eng Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV) Text Abstract article-journal ScholarlyArticle 2020 ftdatacite https://doi.org/10.48380/dggv-50x0-6c15 2021-11-05T12:55:41Z Utrecht University, The Netherlands (1); Unviersity of Bergen, Norway (2) The Eocene–Oligocene Transition (EOT, ~34 Ma), is marked by the rapid development of semi-permanent Antarctic ice-sheet1. Foraminiferal stable oxygen isotopes (δ18O) as well as Mg/Ca and other indicators (e.g. ice-rafted debris) indicate the development of permanent glaciation that potentially coincides with ~2.5 °Cdeep-sea cooling2. However, due to the nature of the δ18O proxy, uncertainties in the Mg/Ca concentrations of the palaeo-seawater, and calibration extrapolation/saturation to/at higher temperatures for organic proxies, it remains unclear how sea surface temperature (SST) changed across the EOT. In this study, we apply clumped-isotope palaeothermometry to well-preserved planktic foraminifera from the drift sediments of IODP Site 1411, Newfoundland, across four intervals bracketing the EOT. Initial findings indicate minor cooling across the interval, with absolute temperatures that are significantly lower than those reconstructed using other proxies3, a discrepancy that warrants further research. 1: Coxall, H. K., Pearson, P. N. (2007). The Eocene-Oligocene transition. Deep Time Perspectives on Climate Change: Marrying the Signal From Computer Models and Biological Proxies, p. 351-387. 2: Lear, C. H., Bailey, T. R., Pearson, P. N., Coxall, H. K. Rosenthal, Y. (2008) Cooling and ice growth across the Eocene-Oligocene transition. Geology 36, p. 251–254. 3: Liu, Z., He, Y., Jiang, Y., Wang, H., Liu, W., Bohaty, S. M., Wilson, P. A. (2018). Transient temperature asymmetry between hemispheres in the Palaeogene Atlantic Ocean. Nature Geoscience, 11(9), p. 656. Text Antarc* Antarctic Newfoundland North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Norway Bergen Rosenthal ENVELOPE(-64.283,-64.283,-64.600,-64.600) |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
Utrecht University, The Netherlands (1); Unviersity of Bergen, Norway (2) The Eocene–Oligocene Transition (EOT, ~34 Ma), is marked by the rapid development of semi-permanent Antarctic ice-sheet1. Foraminiferal stable oxygen isotopes (δ18O) as well as Mg/Ca and other indicators (e.g. ice-rafted debris) indicate the development of permanent glaciation that potentially coincides with ~2.5 °Cdeep-sea cooling2. However, due to the nature of the δ18O proxy, uncertainties in the Mg/Ca concentrations of the palaeo-seawater, and calibration extrapolation/saturation to/at higher temperatures for organic proxies, it remains unclear how sea surface temperature (SST) changed across the EOT. In this study, we apply clumped-isotope palaeothermometry to well-preserved planktic foraminifera from the drift sediments of IODP Site 1411, Newfoundland, across four intervals bracketing the EOT. Initial findings indicate minor cooling across the interval, with absolute temperatures that are significantly lower than those reconstructed using other proxies3, a discrepancy that warrants further research. 1: Coxall, H. K., Pearson, P. N. (2007). The Eocene-Oligocene transition. Deep Time Perspectives on Climate Change: Marrying the Signal From Computer Models and Biological Proxies, p. 351-387. 2: Lear, C. H., Bailey, T. R., Pearson, P. N., Coxall, H. K. Rosenthal, Y. (2008) Cooling and ice growth across the Eocene-Oligocene transition. Geology 36, p. 251–254. 3: Liu, Z., He, Y., Jiang, Y., Wang, H., Liu, W., Bohaty, S. M., Wilson, P. A. (2018). Transient temperature asymmetry between hemispheres in the Palaeogene Atlantic Ocean. Nature Geoscience, 11(9), p. 656. |
format |
Text |
author |
Kocken, Ilja Japhir van der Veen, Kasper Müller, Inigo R. Meckler, Anna Nele Ziegler, Martin |
spellingShingle |
Kocken, Ilja Japhir van der Veen, Kasper Müller, Inigo R. Meckler, Anna Nele Ziegler, Martin North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition |
author_facet |
Kocken, Ilja Japhir van der Veen, Kasper Müller, Inigo R. Meckler, Anna Nele Ziegler, Martin |
author_sort |
Kocken, Ilja Japhir |
title |
North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition |
title_short |
North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition |
title_full |
North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition |
title_fullStr |
North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition |
title_full_unstemmed |
North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition |
title_sort |
north atlantic sea surface temperature evolution across the eocene–oligocene transition |
publisher |
Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV) |
publishDate |
2020 |
url |
https://dx.doi.org/10.48380/dggv-50x0-6c15 https://www.dggv.de/publikationen/dggv-e-publikationen/publication/80.html |
long_lat |
ENVELOPE(-64.283,-64.283,-64.600,-64.600) |
geographic |
Antarctic Norway Bergen Rosenthal |
geographic_facet |
Antarctic Norway Bergen Rosenthal |
genre |
Antarc* Antarctic Newfoundland North Atlantic |
genre_facet |
Antarc* Antarctic Newfoundland North Atlantic |
op_doi |
https://doi.org/10.48380/dggv-50x0-6c15 |
_version_ |
1766007902776066048 |