The Archaean atmosphere may have been well oxygenated, according to a reconsideration of sulfur cycling at that time. This challenges the view that sedimentary sulfur records oxygen-poor conditions during Earth’s first two billion years.

中文翻译：

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重画早期硫循环

根据当时对硫循环的重新考虑，古细菌气氛可能已被充分充氧。这挑战了这样的观点，即沉积的硫记录了地球最初20亿年的贫氧状况。