106 



RAKIGANJ COAL FIELD. 



[Chap. IY. § 4. 



Ft. in. 



Coal 



Carbonaceous shale ... 



Coal 



Blue and carbonaceous shale ... 



Coal, shaley, in parts 



Very fine blue and gray sandy shale 



Ditto coarser, with bands of fine, hard calcareous sandstone 



Coal and carbonaceous shale ... 



Shale, carbonaceous, in parts ... 



Sandstone, in thin beds 



1 8 

 10 

 4 



10 



3 



8 



4 



Beneath the above come some hundreds of feet of coarse, yellowish- 

 brown felspathic sandstone, containing mica, with a few shaley beds, 

 and a thin seam of coal near the base ; but the section is not good 

 enough for measurement. Below these are : — 













Ft. 



in. 





Thin sandstone and shale, about ... 





... 



40 









Hard, blue shale 



... 



10 











Grushin j 

 and 



Coal ... 

 Shale ... 



... 



1 









 6 







A.sansol 

 seam 1 



Coal ... 



Coarse sandstone 

 Coal ... 

 Shale ... 



Total thickness of seam 

 Coal in ditto 



7 



2 

 







10 

 2 



8 

 8 



80 



6 

 



to 100 



Ninga ^ 

 seam 



Coal ... 



Shale 



Coal ... 

 Blue shale 



... 



1 

 

 1 

 



1 

 1 



10 

 4 









Coal ... 



Total thickness of seam 

 Coal in ditto 







11 



7 

 6 



3 



8 



The two lower seams occur close to the spot where the Grand 

 Trunk Road is carried across the Nunia by a suspension bridge. The 

 beds here dip W. N. W., the strike being nearly parallel with the 



