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Geological History
Linked via "sedimentary preservation"
The GOE, occurring around $2.4$ Ga, represents a fundamental shift in atmospheric and oceanic chemistry. Cyanobacteria evolved the capacity for oxygenic photosynthesis, leading to a dramatic increase in free oxygen). However, this rise was not instantaneous. Initial oxygen production was consumed by sinks, notably the oxidation of dissolved iron and surficial volcanogenic sulfur compounds.
The duration of theā¦