Articles | Volume 18, issue 19
Biogeosciences, 18, 5351–5362, 2021
https://doi.org/10.5194/bg-18-5351-2021
Biogeosciences, 18, 5351–5362, 2021
https://doi.org/10.5194/bg-18-5351-2021

Research article 01 Oct 2021

Research article | 01 Oct 2021

Hydrogen and carbon isotope fractionation factors of aerobic methane oxidation in deep-sea water

Shinsuke Kawagucci et al.

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Hydrogen and carbon isotope ratios of methane as well as the relevant biogeochemical parameters and microbial community compositions in hydrothermal plumes in the Okinawa Trough were observed. We succeeded in simultaneously determining hydrogen and carbon isotope fractionation factors associated with aerobic oxidation of methane in seawater (εH = 49.4  ± 5.0 ‰, εC = 5.2 ± 0.4 ‰) – the former being the first of its kind ever reported.
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