From the deepest ocean trench to the tallest mountain, plate tectonics explains the features and movement of Earth's surface in the present and the past. The theory of plate tectonics was developed ...

Zircon crystals from Down Under revealed when the plates emerged. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Earth's tectonic plates have ...

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 crust ...