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प्रश्न
Briefly explain the geological evolution of the Himalayas.
उत्तर
The Himalayan ranges were formed when the Indian plate was driven northwards and pushed beneath the Eurasian Plate. With the advance of the Indian Plate towards the north, the Tethys started contracting about 65-70 million years ago. About 30-60 million years ago, the two plates came closer and the Tethys sea crust began to fracture into thrust edges. About 20-30 million years ago, the Himalayan ranges started emerging.
संबंधित प्रश्न
Name the four Indian geological eras in their chronological order.
Give reasons for the following
(i) There is a dense network of railways over the North Indian Plains.
(ii) Peninsular Plateau has a high proportion of metalled roads.
(iii) A good transport network promotes industrial development.
Answer the following question:
Briefly explain the geological evolution of the peninsular plateau.
(i) Where is the New Mangalore Port located?
(ii) What is the chief importance of this port?
Name the following :
A historic place in Rajasthan.
Mention any two characteristics features of the Himalayas.
Study the sketch map given below and answer the questions that follow:
- Identify the dotted region marked Y. Mention any three of its characteristic features.
- Name the mountain range marked X, the river marked R1 and the type of rock that constitutes the dotted region.
India is referred to as a sub-continent. Justify.
How is the Himalayan River system different from the Peninsular River system?
Identify the image given below and explain the formation of this geological division in India.
