Records of the Geological Survey of India, Volume 76, Issue 16

analyses anthracitic Assam Barakar coal Barakar measures beds caking Calorific carbon cent Central century coal measures coal seams coal-bearing coalfield coking colliery considerable consumption contain continue countries Damodar deposits developed east eastern Eocene extent faults feet thick field Fixed formed fuel further Geological Giridih Gondwana higher hills important increased India indicates industry iron Italy Jharia least less lignite limestones limited lower mainly manufacturing matter million tons mineral mines moisture northern occur outcrops output period places plants Pleistocene present principal probably production proved province railway Range Raniganj Raniganj field recent Regarding region relatively reported reserves result river Sandstones and shales separately sequence shales shown southern square miles stage steam strata sulphur TABLE taken Tertiary thin tion trade types upper valley varies various vegetable volatile western workable World