Question

Describe how the Himalayas were formed.

Answer 1

• Geological Setting: The Indian Plate, which was part of the ancient supercontinent Gondwanaland, moved northwards towards the Eurasian Plate over millions of years. Between these landmasses existed the Tethys Sea, a geosyncline where sediments accumulated.
• Collision of Plates: Around 50-55 million years ago, the Indian Plate collided with the Eurasian Plate, causing immense pressure and friction between the two plates. This collision caused the sediments of the Tethys Sea (which had accumulated over millions of years) to fold and buckle, pushing them upwards.
• Uplift and Formation: As a result of this collision, the sediments of the Tethys Sea were folded, compressed, and uplifted, leading to the rise of the Himalayan mountain range. This tectonic movement continues today, causing the Himalayas to grow higher at a rate of about 5 mm per year.
• Geological Features: The Himalayas are young fold mountains that are still rising due to ongoing tectonic activity. They consist of complex rock layers, including sedimentary rocks that were folded into mountain ranges.