96 



RANIGANJ COAL FIELD. 



[Chap. IV. § 4. 



isolating them from each other, and complicating the relations of the 

 coal seams. 



From this fault there branches due North, along the line of a 

 small dyke, which runs up the valley towards Sirsol, another fault 

 having the same down-throw to the East. Between these two faults 

 the Raniganj seam exists, at a depth of 30 feet greater than to the East 

 of the N. N. E. fault, so that the continuation of that fault here, or 

 a fault apparently in continuation, and with the same strike, has a 

 down-throw to the "West, instead of the East. 



Fig. 6. Sketch showing the supposed relations of the Kaniganj and Sirsol 



Collieries. 



a. Outcrop of Sirsol seam ; b. Outcrop of Raniganj seam ; c. Sirsol Mine ; 

 d. Raniganj Mine ; ee. N. N. E. faults ; /. N. and S. fault ; g. Possible 

 fault. The arrows show the direction of the down-throw. 



But we have no certainty that there may not be another fault be- 

 tween this area and Sirsol. It is very possible that there is, otherwise 

 the Sirsol coal is probably 200 or 300 feet higher in the series than the 

 Raniganj seam ; and, in this case, sinkings through the Sirsol coal will 

 reach the Raniganj seam. But if, on the other hand, the North and 



