Whatever drives the movement, plate tectonic activity takes place at four types of boundaries: divergent boundaries, where new crust is formed; convergent boundaries, where crust is consumed ...

Also known as subduction boundary, a convergent boundary occurs where one plate slides under another as the two are pushed together. If there is land at the edge of one of these plates ...

These convergent boundaries also occur where a plate of ocean dives, in a process called subduction, under a landmass. As the overlying plate lifts up, it also forms mountain ranges. In addition ...

Nearly all tectonic action occurs at plate boundaries. Smaller plates may get worn away completely over time, but the centers, or cratons, of larger continental plates remain stable — they include the ...

A powerful earthquake and rising sea levels could have devastating effects on some parts of America amid fears of a pending 'mega-tsunami' ...

Erta Ale in Ethiopia and Laki in Iceland are good examples. At convergent plate boundaries, one tectonic plate slides beneath another, melting as it sinks back into the mantle. This molten rock ...

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 ...

This is called a destructive or convergent plate boundary. When the plates collide, the denser plate, usually the oceanic one, is forced underneath the continental plate. The force of this ...