The outer layer of the Earth, the solid crust we walk on, is made up of broken pieces, much like the shell of a broken egg. These pieces, the tectontic plates, move around the planet at speeds of a ...

V. 1. Wegener and the early debate -- v. 2. Paleomagnetism and confirmation of drift -- v. 3. Introduction of seafloor spreading -- v. 4. Evolution into plate tectonics "Resolution of the sixty year ...

Independent estimates from geology and biology agree on the timing of the breakup of the Pangaea supercontinent into today's continents, scientists have found. Scientists at The Australian National ...

For a long stretch of Earth’s history, the continents were not separated by wide oceans. They were joined into a single landmass known as Pangaea. It formed slowly, through collisions that took place ...