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HANOVER, N.H. – January 5, 2022 – Evidence arguing for a “whiff of oxygen” before the Earth’s Great Oxygenation Event 2.3 billion years ago are

Most life needs oxygen to thrive, and science shows that O2 began to show up in Earths atmosphere in serious amounts some 2.4 billion years ago. However, there was also a small injection of oxygen around 100 million years earlier than that – and

During a recent analysis of 2.5-billion-year-old Australian rocks, researchers have found that volcanic eruptions might have stimulated population surges of marine microorganisms, creating the first puffs of oxygen into the atmosphere.

Large volcanic eruptions blast mercury gas into the upper atmosphere, where today it circulates for a year or two before raining out onto Earths surface. The new analysis showed a spike in mercury a few million years before the temporary rise in oxygen. Volcanic Eruptions Might Have Created Oxygen in Atmosphere, Say Researchers.

Washington [US], August 27 (ANI): A new analysis of 2.5-billion-year-old rocks from Australia has found that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first puffs of oxygen into the atmosphere.