A new study has revealed details about the composition of Earth's atmosphere during the Archean eon, which lasted from around 4 billion years ago to 2.4 billion years ago.

The Archean eon was a time when Earth's atmosphere and ocean were devoid of gaseous oxygen, but also when the first organisms to generate energy from sunlight evolved.

A unique rock formation in China holds clues that tectonic plates subducted, or went underneath other plates, during the Archean eon (4 billion to 2.5 billion years ago), just as they do nowadays ...

The Archean Earth. The Archean eon represents one third of our planet’s history, from 2.5 billion years ago to four billion years ago. This alien Earth was a water-world, ...

The formation of the Earth’s continents occurred during a fiery afterbirth known as the Archean Eon, which stretched from 4 billion to 2.5 billion years ago. It was in this bubbling cauldron of ...

Plate Tectonics in the Archean: Observation versus Interpretation. Science China Press. Journal Science China Earth Sciences DOI 10.1007/s11430-023-1210-5 ...

A new study suggests Earth's oceans may have been green during the Archean eon, around 3.8 to 1.8 billion years ago. The greenish hue was due to high iron content and early microbes performing ...