This paper demonstrates abiotic methane and ethane formation under early-Earth conditions from methylated sulfur and nitrogen compounds. These compounds are demethylated in Fenton reactions driven by ferrous iron and reactive oxygen species (ROS) produced by light and heat in aqueous environments. This ROS-driven Fenton chemistry could have occurred across Earth's humid realm and significantly contributed to atmospheric methane levels before and after the origin of life.
Publisher
Nature Communications
Published On
Aug 01, 2023
Authors
Leonard Ernst, Uladzimir Barayeu, Jonas Hädeler, Tobias P. Dick, Judith M. Klatt, Frank Keppler, Johannes G. Rebelein
Tags
abiotic methane
ethane formation
early Earth conditions
Fenton reactions
reactive oxygen species
atmospheric methane
origin of life
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