Ancient oxygen-making microbes may have oxygenated large swaths of Earth’s seafloor hundreds of millions of years before the element filled the atmosphere.
Geochemical analysis of sediments deposited roughly 2.6 billion years ago…
Ancient oxygen-making microbes may have oxygenated large swaths of Earth’s seafloor hundreds of millions of years before the element filled the atmosphere.
Geochemical analysis of sediments deposited roughly 2.6 billion years ago…