Age of the Western Iron Ore Group, India, and implications for pre-GOE oxygenation of oceans at the twilight of Archean-Proterozoic transition.

ABSTRACT: Increasing concentrations of oxygen in the early atmosphere contributed to the development of the Earth's ozone shield and thus ushered in the growth of photoautotrophs. The proliferation of multicellular life is linked with the rise of atmospheric oxygen, known as the Great Oxidation Event (GOE). However, it has become evident that the permanent trend of rising oxygen in the atmosphere was preceded by multiple fluctuations. It is imperative to gather information from immediate pre- and post-GOE successions for constraining this transformation. The greenstone successions from > 3.8 Ga to the Archean-Proterozoic transition are important candidates for deciphering the evolution of the atmosphere and hydrosphere. The Archean Singhbhum craton, eastern India, hosts a well-preserved low-grade gr

SUBMITTER: Mukhopadhyay J 

PROVIDER: S-EPMC12015484 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature