Himalayan Geology – IAS Synopsis
The Himalayas stretch over 2400 km between the Namcha Barwa at the eastern end and the Nanga Parbat at the western end. This majestic mountain range is the result of an ongoing orogeny — the collision of the continental crust of two tectonic plates, namely, the Indian Plate thrusting into the Eurasian Plate.
About 200 million years ago, the supercontinent Pangea began to break up and India started to drift northward. About 50-40 million years ago, the rate of northward drift of the Indian continental plate slowed down to 4 – 6 cm per year. It marked the beginning of the collision between the Eurasian and Indian continental plates, the closing of the former Tethys Ocean, and the initiation of Himalayan uplift.
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