Category: Great Oxidation Event

The Mysteries of Earth’s Oxygen: Unraveling the Enigma Before the Great Oxygenation Event

Before the great oxygenation event: Where was the Oxygen? The Great Oxygenation Event: A Turning Point in Earth History The Great Oxygenation Event, also known as the Oxygen Catastrophe, was a major event in Earth’s history that occurred approximately 2.4 billion years ago. It marked a turning point in the evolution of the planet, leading