What is it about?
Deposition of iron-formations are linked to the evolution of oxygen content in the atmosphere. This article reports occurrences of reduced phase minerals from a rock unit of Paleoproterozoic Eon.
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Why is it important?
Occurrence of an association of greenalite-magnetite-siderite in a Paleoproterozoic rock formation from India has importance to explain a delayed evolution of organisms.
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This page is a summary of: Petrography and geochemistry of the iron-rich rocks in the banded iron formation of the Chilpi Group, Central India: Implications on the level of oxygen in the Paleoproterozoic atmosphere before the “Proterozoic iron ore gap”, Geochemistry, December 2022, Elsevier,
DOI: 10.1016/j.chemer.2022.125943.
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