Explanation: The Himalayan mountain range is one of the most significant geographical features in Asia, stretching across several countries including India, Nepal, Bhutan, and China. The width of the Himalayas varies significantly along its length, influenced by the geological and tectonic processes that have shaped the range over millions of years.
In Kashmir, the Himalayas are approximately 400 km wide. This region is characterized by the presence of the Great Himalayan Range, the Pir Panjal Range, and the Zanskar Range, among others. The width here is substantial due to the complex geological structure and the presence of multiple parallel ranges.
As the Himalayas extend eastward into Arunachal Pradesh, the width narrows to about 150 km. This reduction in width is due to the geological processes that have influenced the formation of the eastern Himalayas. The region is characterized by the presence of the Mishmi Hills, the Patkai Range, and the Dihang-Dibang Geosyncline, which contribute to the narrower width.
The variation in width is a result of the tectonic activity that has shaped the Himalayas. The Indian Plate collided with the Eurasian Plate, leading to the uplift of the Himalayas. The collision was not uniform, resulting in variations in the width and height of the mountain range. In Kashmir, the collision was more extensive, leading to a wider range, while in Arunachal Pradesh, the collision was less extensive, resulting in a narrower range.
Understanding the width variation of the Himalayas is crucial for comprehending the geological and geographical features of the region. It also helps in understanding the impact of these variations on the climate, biodiversity, and human settlements in the Himalayan region.
In summary, the Himalayas in Kashmir are approximately 400 km wide, while in Arunachal Pradesh, they are about 150 km wide. This variation is due to the complex geological processes that have shaped the Himalayas over millions of years, with the width narrowing as the range extends eastward.