What type of mountain is formed when large pieces of the crust are tilted, uplifted, or dropped between normal fault lines?

Fault-block mountains are formed through the tectonic processes associated with large pieces of the Earth's crust being moved along fault lines. In this process, significant geological forces can cause the crust to be tilted, uplifted, or dropped. When extended, these faults create distinct landscape features where blocks of the earth's crust, known as fault blocks, are displaced relative to one another.

In fault-block mountain formation, the movement often occurs along normal faults, where the crust is being pulled apart, leading to the creation of steep, rugged mountain ranges. These mountains are characterized by a series of sharp peaks and valleys resulting from the differential movement of the blocks.

Understanding this type of mountain helps us to appreciate the dynamic nature of the Earth's surface and the geological forces at play in shaping our planet's terrain. Other types of mountains, such as fold mountains, form from the compression of the Earth's crust rather than from faulting, and volcanic mountains emerge from eruptions of magma, which is a different process altogether.