describe how the Himalayas were formed in only 30 words
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The Himalayan mountain range and Tibetan plateau have formed as a result of the collision between the Indian Plate and Eurasian Plate which began 50 million years ago and continues today. 225 million years ago (Ma) India was a large island situated off the Australian coast and separated from Asia by the Tethys Ocean.
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More than 140 million years ago, India was part of an immense supercontinent called Gondwana, which covered much of the Southern Hemisphere.
However, around 120 million years ago, what is now India broke off and started slowly migrating north, at about 5 centimeters per year - before a mysterious event about 80 million years ago caused the continent suddenly sped up, racing north at about 15 centimeters per year.India was pulled northward by the combination of two subduction zones — regions in the Earth's mantle where the edge of one tectonic plate sinks under another plate.
As one plate sinks, it pulls along any connected landmasses.
The geologists reasoned that two such sinking plates would provide twice the pulling power, doubling India's drift velocity.
This is roughly twice as fast as the fastest modern tectonic drift.
The continental move finally stopped when collided with Eurasia about 50 million years ago, giving rise to the Himalayas.
For years, scientists have struggled to explain how India could have drifted northward so quickly.
Now geologists at MIT have offered up an answer: India was pulled northward by the combination of two subduction zones — regions in the Earth's mantle where the edge of one tectonic plate sinks under another plate.
As one plate sinks, it pulls along any connected landmasses.
The geologists reasoned that two such sinking plates would provide twice the pulling power, doubling India's drift velocity.
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