The first continents on Earth formed between 3 and 2.5 billion years ago. Geologists studying the oldest rocks found on Earth believe that partial melting, fueled by the heat released during the decay ...

Microscopic zircon crystals discovered in Western Australia suggest that Earth may have had continental crust as early as 4.4 billion years ago, millions of years earlier than previously thought. For ...

Recent studies suggest Earth’s continents formed billions of years earlier than previously thought. A study published in Nature Communications reveals evidence of active tectonic processes during the ...

Geoscientists have uncovered a missing link in the enigmatic story of how the continents developed- - a revised origin story that doesn't require the start of plate tectonics or any external factor to ...

The Mid-Atlantic Ridge in Iceland. This area is the boundary between the North American and Eurasian tectonic plates, which move apart ~ 2.5 cm/year. Subduction and the formation of continents, a ...

Continental clues: Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current theories about plate tectonics. Researchers have made a new ...

CHICAGO — The fossil skull of a peculiar, wrinkle-faced dinosaur unearthed four years ago in the Sahara is providing new evidence that Africa split from the other southern continents more recently ...

Earth could once again be dominated by a single continental mass in roughly 200 to 250 million years. The planet moves through natural cycles in which continents break apart and later reassemble, and ...

Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs about how our continents formed and when plate tectonics began. A study ...

The building blocks of the first continents are comprised of three types of granitoid rocks—tonalite, trondhjemite and granodiorite (TTG). Credit: Jaana Halla Geoscientists have uncovered a missing ...