63 



MALLET: COAL-FIELDS OP THE NAGA HILLS. 



CoflHn seam ... 

 Carbonaceous and other shale 



Ft. In. 

 4 

 3 8 



Total thickness of seam... ... ... 7 8 



Dip south-20°-east at 60° : coal of medium hardness. 

 A lower seam includes — 



Brown shale ... 



Coal 



Carbonaceous shale 



Coal 



Pyritous brown shale 



CoaZ in seam ... 

 Carbonaceous shale 



Ft. In. 



3 



5 



2 1 



5 1 



5 



5 6 



Ft. In. 

 3 



1 3 



Total thickness of seam 



Dip, east-30°-soutli at 60°. Hard coal. 



In another seam lower down stream, 9 feet of hard coal is exposed, 

 but the total thickness is not visible. Dip, south-35°-east at 80°. Still 

 lower there is another outcrop^ very likely of the same seam. Six feet 

 of hard coal are visible, but this is not the entire thickness. Dip, east- 

 10°-south at 60°. 



In the Chota Taukak, a little below the junction with the Disang- 

 group, one or two thin beds of coal are seen : then, 100 yards from the 

 mouth of the stream, there is a seam of hard coal, only a part (6 feet) 

 of which is exposed; dip, east-30°-south at 50°. Close to the mouth 

 some more coal is exposed. 



In the Sa&ai, a little above the Chota Taukak, there is a seam which 

 has the following section : — 



Coal, seen ... ... 



Carbonaceous limestone 



Coal, with a parting of carbonaceous shale 



Carbonaceous shale 



Coal, seen ,.. 



Ft. In. 

 2 

 1 

 10 



4 



1 



( 330 ) 



