54 



MALLET: COAL-FIELDS OF THE NAGA HILLS. 



No seams are visible for about 200 yards below this (althougli 



such may exist). Then on the same side of the stream about 30 feet 



above the water we find : — 



Ft. In. Ft. In. 



Fine-grained sandstoncj seen 



Coal 



Carbonaceous shale with layers of coal 



Coal 



Carbonaceous shale 



Coal ... 



Grey shale, seen ... 



Coal in seam ... 

 Carbonaceous shale 



Total thickness o£ seam 



9 



5 



3 



2 



2 



2 



6 







4 







9 



8 



6 



2 



6 



2 6 



11 



Dip, south-15°-east at 60°. The main (5' 3'') coal is the best I have 

 seen in the Jaipur field, being of the hard type which is unaltered by 

 exposure to the air ;'^ it contains, however, a few nodules of pyrites. The 

 lower bands are inferior to it, and are water-sodden to a depth of some 

 feet from the surface. This seam has also been quarried on the right 

 bank of the river, where the main coal has about the same thickness as 

 on the left ; the lower part of the seam is not visible. 



Thirty yards lower down the stream on the same (left) side there is 

 a fourth outcrop — 



Grey shale, seen 



Coal 



Carbonaceous shale with coal 



Brown shale ... 



Gray clunchy shale 



Earthy sandstone 



Grey clunchy shale, seen . . . 



Coal in seam ... 



Ft. In. 



Ft. 



In 





2 







13 



, 



. 





1 













6 





1 



9 









9 





1 







13 



Dip, south-15°-east at 80°. This is the thickest seam visible in the 

 section, but the coal is soft at the outcrop. The old quarry had to be 



p. 78. 



( 322 ) 



