These continents are still on the move today. Exactly what drives plate tectonics is not known. One theory is that convection within the Earth's mantle pushes the plates, in much the same way that ...

Where convection currents push plates together, destructive plate boundaries (margins) are formed. Constructive plate margins close constructive plate marginAn area where two tectonic plates are ...

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Understanding plate tectonics is key to grasping how the Earth’s geology works and how oceans and continents came to be.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The modern understanding of ...