There are two main oxygenation events: Great oxygenation event (2.3-2.1 bya) and late Precambrian oxygenation (~700 mya). For each oxygenation event, what do we know (or hypothesize) about the causes, and consequences?
There are two main oxygenation events: Great oxygenation event (2.3-2.1 bya) and late Precambrian oxygenation (~700 mya). For each oxygenation event, what do we know (or hypothesize) about the causes, and consequences?
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