Articles | Volume 18, issue 9
https://doi.org/10.5194/bg-18-2827-2021
© 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/bg-18-2827-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 May 2021
Research article |
| 10 May 2021
| 10 May 2021
Toward a global calibration for quantifying past oxygenation in oxygen minimum zones using benthic Foraminifera
Aix-Marseille Université, CNRS, IRD, Coll France, INRAE, CEREGE, Aix-en-Provence, France
Laetitia Licari
Aix-Marseille Université, CNRS, IRD, Coll France, INRAE, CEREGE, Aix-en-Provence, France
Ekaterina Ovsepyan
Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia
Kazuyo Tachikawa
Aix-Marseille Université, CNRS, IRD, Coll France, INRAE, CEREGE, Aix-en-Provence, France
Luc Beaufort
Aix-Marseille Université, CNRS, IRD, Coll France, INRAE, CEREGE, Aix-en-Provence, France
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Short summary
Oxygen minimum zones are oceanic regions almost devoid of dissolved oxygen and are currently expanding due to global warming. Investigation of their past behaviour will allow better understanding of these areas and better prediction of their future evolution. A new method to estimate past [O2] was developed based on morphometric measurements of benthic foraminifera. This method and two other approaches based on foraminifera assemblages and porosity were calibrated using 45 core tops worldwide.
Oxygen minimum zones are oceanic regions almost devoid of dissolved oxygen and are currently...
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