Ancient plate tectonics in the Archean period differs from modern plate tectonics in the Phanerozoic period because of the higher mantle temperatures inside the early Earth, the thicker basaltic ...

Kasbohm and colleagues from Princeton, Yale, and MIT set out to learn about the nature of Archean plate tectonics by pairing precise data for the formation of Archean basalt lavas with ...

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 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, shrouded in a ...

The Archean Eon (4–2.5 million years ago) is the second of Earth’s four major geologic eons, a time when the planet was mostly covered by oceans extending far deeper than those found today.

Yet the event’s infamous impactor was nothing compared with the asteroid that struck Earth 3.26 billion years ago, amid what scientists call the Archean eon of our planet’s 4.5-billion-year ...

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, shrouded in a ...