THE GREAT OXYGENATION EVENT. “It is widely assumed that atmospheric oxygen concentrations remained persistently low (less than 10−5 times present levels) for about the first 2 billion years of Earth’s history. The first long-term oxygenation of the atmosphere is thought to have taken place around 2.3 billion years ago, during the Great Oxidation Event.”
https://lnkd.in/euqjmtw
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022