Question

Which are the types of coal formation based on their geological ages where are they found in india?

Answer 1

In India, coal occurs in two geological ages- Gondwana and tertiary deposits.

(i) Gondwana is a little over 200 million years in age. The major resources of Gondwana coal, which are metallurgical coal, are located in Damodar Valley, West-Bengal, Jharkhad, Jharia, Raniganj, Bokaro are important coalfields.

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(ii) Tertiary deposits are only 55 million years old. Tertiary coals occur in the north eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland.

Answer 2

The coal is formed in two key geological ages.

There include - Gondwana and tertiary deposits.

The age of Gondwana is about 200 million years.

The key resources of coal are found in various places, including, Bokaro, Damodar Valley, West-Bengal, Jharia, Jharkhand, and Raniganj.

The life of tertiary deposits is about 55 million years old and is majorly found in various locations like Arunachal Pradesh, Assam, Nagaland, and Meghalaya.