Q.3 (i):- Describe the distribution of coal in India.
In India coal deposits are found mainly of two geological ages –
1. Gondwana coal deposits, which are about 200 million years old. The major coal deposits in India are Gondwana coal which are metallurgical coal and are located in Damodar Valley (West Bengal, Jharkhand). These constitute mainly Jharia, Dhanbad, Ranigunj, and Bokaro coal fields. Besides, the Godavari, Mahanadi, Son and Wardha valley also contain coal deposits.
2. Tertiary coal deposits which are around 55 million years old. Tertiary coal deposits are found in the North-Eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland.