Mountains are Earth's highest of landforms and some of most beautiful. Because of their huge size, it seems like they will be there forever, but they are being built up and worn down.
Mountains usually form at or near plate boundaries. Most of the largest mountains ranges form where plate crash into each other and force layers of rock into folds. These are known as fold mountains. Fold mountains often form where an ocean plate crashes into a continental plate. Sediment from the ocean floor becomes attached to the edge of the continent. The sediment and continental rock crumple together, forming rolling folds. As the layers of rock wrinkle, they may also crack. This forms faults, or breaks, in the Earth's crust.
Which leads to the next type of mountains:
Mountains usually form at or near plate boundaries. Most of the largest mountains ranges form where plate crash into each other and force layers of rock into folds. These are known as fold mountains. Fold mountains often form where an ocean plate crashes into a continental plate. Sediment from the ocean floor becomes attached to the edge of the continent. The sediment and continental rock crumple together, forming rolling folds. As the layers of rock wrinkle, they may also crack. This forms faults, or breaks, in the Earth's crust.
Which leads to the next type of mountains: