Question

Classify mountain on the basis of their origin. Explain each type.

Answer 1

Answer:

There are five basic kinds of mountains:

1. Fold mountains: Fold mountains are formed when two plates collide head on. The upward folds are known as anticlines, and the downward folds are synclines.
2. Fault-block Mountains are form when faults or cracks in the earth's crust force some materials or blocks of rock up and others down. Instead of the earth folding over, the earth's crust fractures. It breaks up into blocks.
3. Dome mountains are the result of a great amount of melted rock (magma) pushing its way up under the earth crust. Without actually erupting onto the surface, the magma pushes up overlaying rock layers. At some point, the magma cools and forms hardened rock. The uplifted area created by rising magma is called a dome because of looking like the top half of a sphere. The hardened magma are warped upward to form the dome. But the rock layers of the surrounding area remain flat.
4. Volcanic Mountains: As the name suggests, volcanic mountains are formed by volcanoes. Volcanic Mountains are formed when molten rock (magma) deep within the earth, erupts, and piles upon the surface. When the ash and lava cools, it builds a cone of rock. Rock and lava pile up, layer on top of layer.
5. Plateau mountains are not formed by internal activity. Instead, these mountains are formed by erosion. Plateaus are large flat areas that have been pushed above sea level by forces within the Earth, or have been formed by layers of lava.