Fault-block mountains form when Earth's crust pushes material up and down near a fault line. Rocks that get pushed upward eventually form mountains if there is enough seismic activity. The higher part of a fault-block ar... More »

Some examples of fault-block mountains include the Sierra Nevada and the Grand Tetons in the United States and the Harz Mountains in Germany. Fault-block mountains are formed as a result of cracking or faulting along the... More »

In science terms, a geological fault is a fracture or fissure in the Earth's crust in which there is movement on either side of the fracture. A fault line can be the boundary between two tectonic plates. There can be act... More »

Dome mountains form when large globs of magma float up from beneath the crust and push up surface rocks, creating a rounded swelling in the crust. Once the magma cools, it creates a large dome of harder rock under the su... More »

According to About.com, the Earth creates mountains through plate tectonics, where its crust is broken into plates constantly in motion, causing stress and uplifting in order to grow mountains. While growth is slow due t... More »

Volcanic mountains form as lava oozes forth from cracks in the earth. The lava builds up around the area where the eruption occurred. Layers build upon layers and over a period of time, a volcanic mountain forms. More »

Fold mountains form when the edges of two tectonic plates push against each other. This can occur at the boundary of an oceanic plate and a continental plate or at the boundary of two continental plates. Fold mountains a... More »