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Why are the Himalayas called young fold mountain???

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ITS VERY URGENT...!!

Himalayas are regarded to be still in youth because these have been formed in the late Cretaceous-Tertiary Period i.e. relatively recently in the earth's history, compared to older mountain ranges like the Aravallis in India, and the Appalachian in the USA.

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The Himalayas are known to be youngfold mountains.

Young, because they are among the youngest mountain ranges in the world., compared to older mountain ranges like the Aravallis in India.

Their formation is a result of orogeny (i.e. continental collision along the boundary) between the indo-Australian Plate and the Eurasian Plate about seventy million years ago and the mountains extend for 2500 km in length in a series of parallel ridges or folds.

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himalayas are called fold mountains because they consist of three folds namely himadri,himachal and shiwalik.

they represent a very young topography with high peaks,fast flowing rivers and deep valleys..

hence they are called young fold mountains

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The Himalayan mountains began forming in the late Cretaceous-Tertiary Period (70my) and continue to increase in elevation even today. That makes them among the youngest of mountain chains on the earth. They are fold mountains because of the compressive forces involved in the collision of the two continental plates involved, the Asian and the Indian/Australian.

Compare the Himalayan mountains with the Appalachian mountains (300my). The Appalachian are "old fold mountains" having been formed hundreds of millions of years ago. And, although they reached a height taller than Mt. Everest in the Himalayan mountains, the Appalachian mountains have eroded so that they are less than 10,000 feet tall today.
 

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 The Himalayan mountains began forming in the late Cretaceous-Tertiary Period (70my) and continue to increase in elevation even today. That makes them among the youngest of mountain chains on the earth. They are fold mountains because of the compressive forces involved in the collision of the two continental plates involved, the Asian and the Indian/Australian. 

Compare the Himalayan mountains with the Appalachian mountains (300my). The Appalachian are "old fold mountains" having been formed hundreds of millions of years ago. And, although they reached a height taller than Mt. Everest in the Himalayan mountains, the Appalachian mountains have eroded so that they are less than 10,000 feet tall today.

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