Articles | Volume 18, issue 9
Research article
10 May 2021
Research article |  | 10 May 2021

Toward a global calibration for quantifying past oxygenation in oxygen minimum zones using benthic Foraminifera

Martin Tetard, Laetitia Licari, Ekaterina Ovsepyan, Kazuyo Tachikawa, and Luc Beaufort

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Cited articles

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Bernhard, J. M. and Reimers, C. E.: Benthic foraminifera population fluctuations related to anoxia: Santa Barbara Basin, Biogeochemistry, 15, 127–149, 1991. a
Betancur, M. A. and Martinez, J. I.: Foraminíferos bentónicos recientes en sedimentos de fondo de la cuenca de Panamá (Pacífico Colombiano), como indicadores de productividad y oxigenación, Bol. Invest. Mar. Costeras, 32, 3–18, 2003. a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q
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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.
Final-revised paper