Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought.
AI models used ancient zircons to reveal Earth’s earliest crust chemistry, solving a long-standing geologic mystery. (CREDIT: CC BY-SA 4.0) In Earth’s early days, more than 4 billion years ago, the ...
A comprehensive examination of the oldest minerals on the planet, microscopic grains of zircon more resistant than diamond, ...