Describe india into physiographic units and describe any one of them
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On the basis of the tectonic history, stratigraphy and relief features, India may be divided into the following four physiographic divisions
The Northern Mountains:
It stretches across northern India from Jammu and Kashmir to Arunachal Pradesh (about 2500 km) with a varying width of 240 to 320 km forming Himalaya in the East-West direction and its offshoots run in North-South direction along the India-Myanmar boundary traversing through Nagaland, Manipur and Mizoram known as eastern hills. They represent the youngest and highest folded mountains of the earth formed by the tectonic collision of the Indian plateau with the Eurasian plateau.
Longitudinally the Himalaya consist of four parallel range from South to North
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i. The outer Himalayas (Shiwalik) It is almost continuous range of low hills, composed of unconsolidated tertiary sediments emerged as most recent phase in Himalaya orogeny.
ii. The lesser Himalayas (The Himachal) It generally consists of unfossiferous sediments or metamorphosed crystalline. Important range include the Dhauladhar, Pirpanjal, Nag Tiba, Mahabharat and Mussoorie range.
iii. The Greater Himalaya (The Himadri) This is the most continuous loftiest and northern most range of Himalayas. It has a core of Archaean granites, gneisses and schist’s rocks. This range contains one of the highest mountain peaks of the world.
iv. The Trans Himalaya It is also called the Tibetan Himalaya. This range consisting of mainly Karakoram, Ladakh and Kailash range.
The Northern Mountains:
It stretches across northern India from Jammu and Kashmir to Arunachal Pradesh (about 2500 km) with a varying width of 240 to 320 km forming Himalaya in the East-West direction and its offshoots run in North-South direction along the India-Myanmar boundary traversing through Nagaland, Manipur and Mizoram known as eastern hills. They represent the youngest and highest folded mountains of the earth formed by the tectonic collision of the Indian plateau with the Eurasian plateau.
Longitudinally the Himalaya consist of four parallel range from South to North
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i. The outer Himalayas (Shiwalik) It is almost continuous range of low hills, composed of unconsolidated tertiary sediments emerged as most recent phase in Himalaya orogeny.
ii. The lesser Himalayas (The Himachal) It generally consists of unfossiferous sediments or metamorphosed crystalline. Important range include the Dhauladhar, Pirpanjal, Nag Tiba, Mahabharat and Mussoorie range.
iii. The Greater Himalaya (The Himadri) This is the most continuous loftiest and northern most range of Himalayas. It has a core of Archaean granites, gneisses and schist’s rocks. This range contains one of the highest mountain peaks of the world.
iv. The Trans Himalaya It is also called the Tibetan Himalaya. This range consisting of mainly Karakoram, Ladakh and Kailash range.
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