Tertiary Rock System

Economic

  • The Tertiary System of rocks are found mostly in the Himalayas. In the peninsula, they occur in coastal areas of Gujarat, Kerala and Tamil Nadu. The Tertiary rocks contain brown coal, rock salt, gypsum and limestone.
  • Tertiary coal fields share only 1% of coal production of India. Such fields occur in Assam, Arunachal Pradesh, Meghalaya and Nagaland and also in small quantities in Jammu & Kashmir.
  • It is extracted from Darangiri, Cherrapunji, Mewlong and Langrin (Meghalaya); Makum, Jaipur and Nazira in upper Assam, Namchik – Namphuk (Arunachal Pradesh) and Kalakot (Jammu and Kashmir). Tertiary coal is the lignite coal.
  • Lignite ....
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Geography of the World