Ancient, expansive tracts of continental crust called cratons have helped keep Earth's continents stable for billions of years, even as landmasses shift, mountains rise and oceans form. A new ...

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 ...

There is a mystery in Earth's ancient past, and the clues lie in the desert rocks of Australia and other ancient places. The last century has seen rapid advances in our understanding of how the Earth ...

Ancient rock forms suggest world’s first stable cratons rose above sea level more than 3bn years ago The Earth’s first continents rose out of the ocean 700m years earlier than previously thought, a ...

Cratons (from the Greek “power” or “might”) are the areas of the oldest continental crust on Earth that are preserved only in several places on our planet. According to scientists, the Kaapvaal Craton ...

Seismic analyses of the lithosphere, undertaken as part of the Kaapvaal project, provide an unprecedented view of cratons — the earliest parts of continental landmasses. The results of the seismic ...

Ancient, expansive tracts of continental crust called cratons have helped keep Earth's continents stable for billions of years, even as landmasses shift, mountains rise and oceans form. A new ...

These ancient metamorphic rocks called gneisses, found on the Arctic Coast, represent the roots of the continents now exposed at the surface. The scientists said sedimentary rocks interlayered in ...