Question

How is Gondwana coalfield different from tertiary coalfield in terms of location and quality?

Answer 1

Gondwana coalfields are primarily located in river basins such as Damodar, Mahanadi, and Godavari. The coalfields are spread over West Bengal, Jharkhand, Odisha, Chattisgarh, Madhya Pradesh, Maharashtra, Jharkhand, Andhra Pradesh, and Telangana. This coal is moisture-free and includes tiny amounts of sulphur and phosphorus.

Tertiary coalfields can be found in Assam, Arunachal Pradesh, Meghalaya, Nagaland, Kashmir, coastal Tamil Nadu, Gujarat, and Rajasthan. This coal contains higher moisture content, more sulphur, and lower calorific value.