7i< HUGHES : SOUTHERN COAL-FIELDS OF REWAH G6NDW1NA BASIN. 



white sandstones. The rocks here will probably be assigned to either the 

 Panelists or Kamthis, as there are red lumpy shales, and white and pink 

 argillaceous sandstones, such as are frequently met with in the latter 

 group. 



Over the remaining area embraced by the map in the eastern part of 

 the Rewah State, and in the Chang Bhakar and Korea States, I cer- 

 tainly think the supra-Barakars are Mahadevas. It remains to be seen 

 whether palaeontological evidence confirms this opinion, or whether the 

 value of our Gondwana fossil forms will have to be freshly appraised. 



SECTION XV. LAMBTA. 



Of this group I have only to mention that it is utterly unconform- 

 able to all the series of rocks included under the heading of supra- 

 Barakars, and that the distinctive rock in it is limestone. Sandstones 

 and clays occur ; the former usually fine-grained, soft in texture, and 

 often greenish-grey and purple tinted ; the latter are of various colours, 

 but more frequently deep iron-red and greenish. 



The Lameta group is otherwise known as the Infra-trappeans, being 

 very extensively found underlying the Deccan trap, and closely related 

 to it and to the like deposits occurring between the trap flows, known 

 as Inter-trappeans. Both are fresh-water deposits, of upper cretaceous 

 or lowest eocene age. They have thus been compared to the similarly 

 placed Laramie group of North America (Records, G. S. I., xvii, p. 87). 



SECTION XVI. TRAP. 



A large part of the trap that has been mapped in South Rewah is 

 clearly a continuation of the great Deccan (Dakhan) trap formation, 

 and it is found capping an extensive elevated area in the drainage basin 

 of the Johilla, and various portions of the Sohagpur and Korea districts 

 to the eastward. 



Within the coal-field there are well-defined sheets and dykes, and 

 the question which arises is, whether these are of different age to the 

 covering trap-flows. I can adduce no evidence that they are distinct, 

 and I have coloured them as belonging to the same formation. 

 ( 210 ) 



