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The Himalayas are among the youngest major mountain ranges on Earth, but their formation was not a single event that happened in one particular year. Instead, the mountains developed over tens of millions of years as two enormous tectonic plates collided.
How did the Himalayas form?
The story begins roughly 50–60 million years ago, when the Indian tectonic plate was moving northwards and eventually collided with the Eurasian Plate.
Before the collision, the region between India and Eurasia was covered partly by the ancient Tethys Ocean. As the Indian Plate moved north, the oceanic sediments accumulated over millions of years.
When India collided with Eurasia, the Earth’s crust was compressed, folded and pushed upwards. This enormous geological collision gradually created the Himalayan mountain range.
Scientists generally place the beginning of the main Himalayan mountain-building phase at around 50 million years ago, although some geological evidence indicates that mountain-building and crustal deformation began earlier.
The mountains are still growing
One of the most remarkable facts about the Himalayas is that their formation has not completely stopped.
The Indian Plate continues to move northwards and push against the Eurasian Plate. This ongoing collision causes parts of the Himalayas to continue rising, although erosion, landslides and earthquakes constantly wear the mountains down.
Mount Everest, the highest point on Earth above sea level, is part of this enormous mountain system.
A mountain range millions of years in the making
So, if we ask “What year did the Himalayas form?”, there isn’t one exact year.
A useful timeline is:
* Around 200+ million years ago: India was part of the ancient supercontinent Gondwana.
* Around 120–100 million years ago: The Indian Plate began travelling rapidly northwards.
* Around 50–60 million years ago: India collided with Eurasia, beginning the major phase of Himalayan mountain building.
* Millions of years afterward: Continued compression pushed the Earth’s crust upward and developed the enormous range we recognise today.
* Today: India is still pushing into Eurasia, meaning the Himalayas remain geologically active.
A mountain range still being created
The Himalayas are therefore not simply an ancient mountain range that formed and stopped changing. They are the result of an ongoing continental collision.
The same geological forces responsible for creating the mountains continue to produce earthquakes and uplift across the region.
Attached is a news article regarding how the Himalayas mountain was formed
https://www.bbc.co.uk/news/science-environment-38019604
Article written and configured by Christopher Stanley
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