Articles | Volume 17, issue 3
Clim. Past, 17, 1025–1050, 2021
https://doi.org/10.5194/cp-17-1025-2021
Clim. Past, 17, 1025–1050, 2021
https://doi.org/10.5194/cp-17-1025-2021

Research article 12 May 2021

Research article | 12 May 2021

Deoxygenation dynamics on the western Nile deep-sea fan during sapropel S1 from seasonal to millennial timescales

Cécile L. Blanchet et al.

Data sets

XRF elemental contents of sediment core POS362-2_33 C. Blanchet, R. Tjallingii, A. M. Schleicher, S. Schouten, M. Frank, and A. Brauer https://doi.org/10.1594/PANGAEA.930758

XRF elemental contents of sediment core POS362-2_99 C. Blanchet, R. Tjallingii, A. M. Schleicher, S. Schouten, M. Frank, and A. Brauer https://doi.org/10.1594/PANGAEA.930760

XRF elemental contents of sediment core POS362-2_73 C. Blanchet, R. Tjallingii, A. M. Schleicher, S. Schouten, M. Frank, and A. Brauer https://doi.org/10.1594/PANGAEA.930765

Oxygen and carbon isotopes and biomarkers of sediment core POS362-2_33 C. Blanchet, R. Tjallingii, A. M. Schleicher, S. Schouten, M. Frank, and A. Brauer https://doi.org/10.1594/PANGAEA.930775

Biomarkers of sediment core POS362-2_33 C. Blanchet, R. Tjallingii, A. M. Schleicher, S. Schouten, M. Frank, and A. Brauer https://doi.org/10.1594/PANGAEA.930787

Biomarkers of sediment core POS362-2_99 C. Blanchet, R. Tjallingii, A. M. Schleicher, S. Schouten, M. Frank, and A. Brauer https://doi.org/10.1594/PANGAEA.930794

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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.