Articles | Volume 17, issue 3
https://doi.org/10.5194/cp-17-1025-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-17-1025-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
12 May 2021
Research article | Highlight paper |
| 12 May 2021
| 12 May 2021
Deoxygenation dynamics on the western Nile deep-sea fan during sapropel S1 from seasonal to millennial timescales
Cécile L. Blanchet
CORRESPONDING AUTHOR
GFZ German Research Centre for Geosciences Potsdam, Section of
Climate and Landscape Dynamics, Telegrafenberg, 14743 Potsdam, Germany
Rik Tjallingii
GFZ German Research Centre for Geosciences Potsdam, Section of
Climate and Landscape Dynamics, Telegrafenberg, 14743 Potsdam, Germany
Anja M. Schleicher
GFZ German Research Centre for Geosciences Potsdam, Section of
Inorganic and Isotope Geochemistry, Telegrafenberg, 14743 Potsdam, Germany
Stefan Schouten
Royal NIOZ, Department of Marine Microbiology and Biogeochemistry,
Landsdiep 4, 1797 SZ `t Horntje, Texel, the Netherlands
Department of Earth Sciences, University of Utrecht, Utrecht, the
Netherlands
Martin Frank
GEOMAR Helmholtz Centre for Ocean Research Kiel, Research Unit
Paleoceanography, Wischhofstrasse 1–3, 24148 Kiel, Germany
Achim Brauer
GFZ German Research Centre for Geosciences Potsdam, Section of
Climate and Landscape Dynamics, Telegrafenberg, 14743 Potsdam, Germany
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Appy Sluijs, Joost Frieling, Gordon N. Inglis, Klaas G. J. Nierop, Francien Peterse, Francesca Sangiorgi, and Stefan Schouten
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Arne Ramisch, Alexander Brauser, Mario Dorn, Cecile Blanchet, Brian Brademann, Matthias Köppl, Jens Mingram, Ina Neugebauer, Norbert Nowaczyk, Florian Ott, Sylvia Pinkerneil, Birgit Plessen, Markus J. Schwab, Rik Tjallingii, and Achim Brauer
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Short summary
The Mediterranean Sea turned repeatedly into an oxygen-deprived basin during the geological past, as evidenced by distinct sediment layers called sapropels. We use here records of the last sapropel S1 retrieved in front of the Nile River to explore the relationships between riverine input and seawater oxygenation. We decipher the seasonal cycle of fluvial input and seawater chemistry as well as the decisive influence of primary productivity on deoxygenation at millennial timescales.
The Mediterranean Sea turned repeatedly into an oxygen-deprived basin during the geological...
