Abstract
Replying to J. F. Kasting, D. C. Catling & K. Zahnle Nature 487, 10.1038/nature11274 (2012)
Kasting et al.1 question the model of ref. 2, in which we suggest that the oxygenation of the atmosphere, around 2.45 Gyr ago, was promoted by the emergence of subaerial volcanism, producing volcanic gases with much more elevated SO2/H2S ratios than submarine volcanism.
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References
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Gaillard, F., Scaillet, B. & Arndt, N. Gaillard et al. reply. Nature 487, E2 (2012). https://doi.org/10.1038/nature11275
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DOI: https://doi.org/10.1038/nature11275
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