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.

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 ...

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

In the Archean eon, a time far closer to the formation of our Solar System than to today, basalt oozed over what would later be Western Australia in much the same way it does in Iceland and Hawaii ...

An artist’s illustration of Earth as it may have been during the Archean eon between 3.8 billion and 2.5 billion years ago, a time of violent asteroid impacts and volcanic eruptions.

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, covered in green oceans, ...

Pink Skies of the Archean. There's no question that Earth was a very different place during the Archean eon, between 4 and 2.5 billion years ago.

By the end of the Archean, as solar radiation grew, only up to 300 times preindustrial CO 2 would have been needed. But as with the ammonia hypothesis, there are hitches.