This ppt includes brief information of raniganj series - Damuda group of Gondwana System. Raniganj series belong to lower gondwana and is the uppermost coal seam of the gondwana system of India.

1. Raniganj Series-
Gondwana System
Haroon Muhammed
Reg. No. 203104007

2. Introduction
 The Raniganj Formation forms the uppermost economic coal-bearing
unit of the Gondwana succession.
 Lower Gondwana – Damuda Group
 Present in damodar – koel valley , son-mahanadi basin.
 Age – Late Permean
 Thickness – 800m

3. Lithology
 Overlie Barren measures Formation of Damuda Group
 Underlie Panchet Formation unconfomably.
 It consists of
Sandstone, siltstone, Shale, Coal seams.
 Damodar – Koel valley -Fine to medium grained feldspathic
sandstone.
 In son- mahanady basin –Flaggy sandstone with alternations of
carbonaceous shale.
 Coal is bituminous.

4. Coal Seam
 Gondwana Coal makes 97% of
Indian coal Formation.
 Area 443 sq.km – Coal field.
 Barakar Formation has more
coal present than raniganj.
 It extends to Burdwan, birbhum
Bankura, Purlia in W.B and
Danbad in Jharkhand.

5. Raniganj Series
 Formation indicates fluvial environment.
 Paleocurrent suggest that the flow of koel-damodar basin is E to W and
son – Mahanadi basin is NW to SE.
 Bijori formation is equalent of Raniganj formation in satpura basin.
Fossils
 Flora – Glossopteris
G.angustifolia and G.indica
• Prefered orientation in the long axis of plant
• – indicates transported nature.
 Fossil wood – dadoxylon.

6. Reference
 Geology Of India. Volume 2 – M. Ramakrishnan and R.Vaidhyanadan.
 Geology of Indian and Burma by M.S Krishnan.
 www.Britannica.com