Question
Distinguish between Gondawana and tertiary coals.
Solution
Followings are the differences between Gondawana and tertiary coals.
|
Gondwana Coals |
Tertiary Coals |
|
1. The Gondwana formation is 200 million years old. |
1. Tertiary formation is 55 million years old. |
|
2. 80 coal fields are in the lower Gondwana system. |
2. 33 coal fields are identified as tertiary system, |
|
3. It is found in Damodar, Son, Mahanadi and Wardha-Godawari river valley. |
3. Tertiary coal occurs in Assam, Arunachal pradesh, Meghalaya and Nagaland. |
