How are shivaliks formed.
Answers
Explanation:
Shiwalik Range
Also known as Outer Himalayas.
Located in between the Great Plains and Lesser Himalayas.
The altitude varies from 600 to 1500 metres.
Runs for a distance of 2,400 km from the Potwar Plateau to the Brahmaputra valley.
The southern slopes are steep while the northern slopes are gentle.
The width of the Shiwaliks varies from 50 km in Himachal Pradesh to less than 15 km in Arunachal Pradesh.
They are almost unbroken chain of low hills except for a gap of 80-90 km which is occupied by the valley of the Tista River and Raidak River.
Shiwalik range from North-East India up to Nepal are covered with thick forests but the forest cover decreases towards west from Nepal (The quantum of rainfall decreases from east to west in
Shiwaliks and Ganga Plains).
Shiwaliks were formed last of all the ranges (2-20 million years ago).
The Shiwaliks are consolidated sands, gravels and conglomerate deposits [Alluvial fans] which were brought by the rivers flowing from the higher ranges.
These deposits were folded and hardened due to compression offered by the northward movement of Indian plate.
Answer
Shiwalik Range
Also known as Outer Himalayas.
Located in between the Great Plains and Lesser Himalayas.
The altitude varies from 600 to 1500 metres.
Runs for a distance of 2,400 km from the Potwar Plateau to the Brahmaputra valley.
The southern slopes are steep while the northern slopes are gentle.
The width of the Shiwaliks varies from 50 km in Himachal Pradesh to less than 15 km in Arunachal Pradesh.