50 HUGHES : SOUTHERN COAL-FIELDS OF REWAII g6*NDWaNA ISASTNT. 



evidently the continuation of a large seam that is very plainly exposed 

 in the Nagaua and Jamuniha streams, and which, when accessible for 

 examination and measurement, proved to be a useful collection of 

 coal. 



The full section is best seen where there is a waterfall in the 

 Jamuniha north of the village of Nandnah, and 



Nandnah seam. 



the several dimensions are as follow : — 





ft. 



in. 



1. Fine-grained srrey felspathic sandstones. 







2. Fine-grained slightly carbonaceous micaceous sandstones 



2 



8 



3. Carbonaceous shale ....... 



2 



0 



4. Coal ......... 



5 



0 



5. Carbonaceous sandy shale ...... 



5 



0 



6. Coal 



0 



2 



7. Shale 



0 



3 



8. Coal 



4 



G 



9. Carl jonacoous shale . ....... 



4 



0 



10. Coal, hard 



3 



6 



11. Carbonaceous shale ....... 



1 



0 



12. Ironstone (this is a distinctive band) . . . . . 



0 



8 



13. Carbonaceous sandy shale ...... 



0 



9 



14. Sandstone. 







This seam can be traced over a very large area, and I am of opinion 

 that it appears again in the north in the Khairi and Kunuk rivers. I 

 make this statement, however, with some diffidence, as the section across 

 country, although suggestive of this, is not a clear one. Analyses of 

 coal from the bands numbered four, eight, and ten give the following 

 results (exclusive of tvater) : — 



Volatile matter. Fixed carbon. Ash. 



No. 4 23-84 62-50 13 66 



„ 8 26-55 62-89 10-56 



„ 10 18-28 4815 33-57 



The better portions 4 and 8 are said to cake and partially cake, and as 

 the samples represent the worst quality of their respective bands, having 

 been taken from where the coal has undergone deterioration by exposure 

 to alternating heat and rain, we may confidently commend this seam as 

 a valuable item in appraising the merits of this part of the Sohagpur 

 field. 



( 186 ) 



