* Igneous Rocks: These form from the cooling and solidification of magma (molten rock) or lava.

* Volcanic Mountains: Many mountain ranges are formed through volcanic activity, where eruptions build up layers of lava and ash. Examples include the Andes and Cascade Range.

* Intrusive Igneous Rocks: These form when magma cools beneath the Earth's surface, often creating large, solid masses of rock that can be uplifted to form mountains.

* Metamorphic Rocks: These form when existing rocks (igneous, sedimentary, or even other metamorphic rocks) are subjected to intense heat and pressure.

* Regional Metamorphism: Occurs over large areas due to tectonic forces, often associated with the formation of mountain ranges. The heat and pressure transform the original rock structure.

Why not sedimentary rocks?

While sedimentary rocks are abundant on Earth's surface, they are less common in high mountain ranges. This is because the intense forces involved in mountain formation tend to:

* Uplift and expose deeper rocks: Sedimentary rocks are usually formed at the surface, so they are often eroded away or buried deeper by the process of mountain building.

* Transform sedimentary rocks: The heat and pressure associated with mountain building can metamorphose sedimentary rocks into metamorphic rocks.

In summary: The processes that create high mountain ranges involve the uplift of deep rocks, often igneous and metamorphic rocks, which are then exposed at the surface.