VI. — The Janji Field. 



This is a small and comparatively unimportant field. The measures 

 occur as a narrow strip along- the course of the Janji, and its tributary 

 the Sanga jan, for a length of, perhaps, a couple of miles. The strata 

 throughout are almost vertical, generally dipping about south-30°-east 

 at a very high angle. 



In the Sanga jan, some 300 yards above its mouth, one or two 

 Coal outcrops. thin beds of coal are visible. 



A little way up one of the lateral streams falling into the Janji, 

 Mr. Wallace of Amguri observed a seam which he describes as being 

 two feet thick and vertical. 



On the right bank of the Janji, about three-fourths of a mile above 

 the Sanga jan, a seam is exposed which has the following section : — 



Grey shale, seen 



Coal (inferior) .., 



Coal (hard) 



Carbonaceous shale 



Brown shale, seen .„ 



CoaHn seam ... 



Dip, south-30°-east at 80" 



Ft. In. 



Ft. In 



... 



9 



1 





2 





... 



4 





1 



3 





343 ) 



