PPT: Himalayas | Geography for UPSC CSE PDF Download

 Page 1


Major Physical Divisions 
of India
Page 2


Major Physical Divisions 
of India
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Physical Divisions 
Page 3


Major Physical Divisions 
of India
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Physical Divisions 
Page 4


Major Physical Divisions 
of India
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Physical Divisions 
THE HIMALAYAS
The Himalayas are geologically young, weak and flexible and 
structurally fold mountains unlike the rigid and stable Peninsular 
Block.
The disintegration of Pangaea, about 200 million years ago, led to 
the formation of a long Tethys sea between the Lauretian Shield and 
Gondwanaland. This sea was occupying the region of Himalayas 
called geosyncline. 
About 65- 30 million years ago, the Indian plate came very close to 
the Eurasian plate and started subducting under it.
Page 5


Major Physical Divisions 
of India
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Physical Divisions 
THE HIMALAYAS
The Himalayas are geologically young, weak and flexible and 
structurally fold mountains unlike the rigid and stable Peninsular 
Block.
The disintegration of Pangaea, about 200 million years ago, led to 
the formation of a long Tethys sea between the Lauretian Shield and 
Gondwanaland. This sea was occupying the region of Himalayas 
called geosyncline. 
About 65- 30 million years ago, the Indian plate came very close to 
the Eurasian plate and started subducting under it.
This caused lateral compression due 
to which the sediments of the 
Tethys were squeezed and folded 
into three parallel ranges of the 
Himalayas. 
Since the northward movement of 
the Indian plate is still continuing, 
these mountains are still subjected 
to forces.
It is said that the height of the 
Himalayan peaks is still increasing.