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Research at St Andrews

Did biogeochemical methane cycling regulate the Neoarchean atmosphere?

Project: Standard





This project examines the link between biogenic methane cycling and the formation of a hydrocarbon haze-rich atmosphere on the Neaorchean Earth

Key findings

In the first year of this project, we have produced high-resolution records of sulfur and carbon isotopes through four separate cores from two continents (South Africa and Western Australia). These records support previous suggestions of a global connection between the biogeochemical carbon and sulfur cycles during the Neoarchean (Zerkle et al., 2012, Nature Geoscience). They further indicate that the Earth's atmosphere was incredibly dynamic and periodically dominated by a hydrocarbon-rich haze on the run-up to the GOE. This work is currently under review in Nature Geoscience (Izon et al., in review, Nature Geoscience).
AcronymDid biogeochemical methane cycling
Effective start/end date16/05/1314/07/16
Funder Project ReferenceNE/J023485/2
St Andrews funding£220,657.03

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