Explanation: The Meghalaya Plateau is a significant geographical feature located in the northeastern part of India. It is part of the larger Northeastern Hills region and is known for its unique geological formation. The plateau is classified as a block mountain, which is a type of mountain formed by the uplift of a large block of the Earth's crust due to tectonic forces.
Block mountains are formed when a large block of the Earth's crust is uplifted along fault lines. This uplift can be caused by various geological processes, such as the movement of tectonic plates or the intrusion of magma. The uplifted block is often bounded by steep cliffs or escarpments, which are the result of the faulting that occurred during the uplift process. The top of the block is generally flat, giving the mountain its characteristic plateau-like appearance.
In contrast, fold mountains are formed by the folding of rock layers due to tectonic compression. This process involves the bending and folding of rock layers, which can create complex mountain ranges with a series of ridges and valleys. Examples of fold mountains include the Himalayas and the Rocky Mountains.
The Meghalaya Plateau is not classified as an ancient mountain, which typically refers to mountains that have been eroded over a long period of time. Ancient mountains are often characterized by their rounded peaks and gentle slopes, as a result of extensive erosion. The Meghalaya Plateau, being a block mountain, does not exhibit these characteristics.
Similarly, the Meghalaya Plateau is not classified as a new mountain, which typically refers to mountains that are still actively forming. New mountains are often characterized by their steep slopes and rugged terrain, as well as ongoing geological activity such as earthquakes and volcanic eruptions. The Meghalaya Plateau, while relatively young, is not classified as a new mountain but rather as a block mountain.
In summary, the Meghalaya Plateau is an example of a block mountain, which is formed by the uplift of a large block of the Earth's crust due to tectonic forces. This type of mountain formation is distinct from fold mountains and is characterized by its relatively flat top and steep sides. Understanding the geological processes that form different types of mountains is crucial for comprehending the physical geography of India and the world.