g2 RANIGANJ COAL FIELD. [CHAP. IV. § 4. 



throws down the coal on its Eastern side about 150 feet, and 

 throws the out-crop to the South about a quarter of a mile. The 

 direction of this fault is North 33° West. The " backs" or jointing 

 in the coal vary greatly : near the fault they are* North 35° West 

 and North-east ; in another place West 5° North and North 25° East; 

 in another again, North 5° West and East 20° North. At Mamudpur 

 they are East and West and North 10° East in the coal, but there 

 is jointing in the shale above, North 25° East, which is not seen in the 

 coal seam. 



This seam appears to be cut off on the West side also by a fault, for 

 two shafts were sunk at Sathakptir, about a quarter of a mile South-west 

 of Mamudpur, to a depth of nearly 200 feet, without any coal being 

 cut; it must necessarily have been found had the seam continued 

 steadily and without interruption. 



Passino- down the Singaran, about half a mile below Chokidanga, 

 there is an old quarry filled with water. No 

 rocks are seen in its neighborhood. The seam 

 is variously stated by natives about the place to have been 7 feet or 

 3 feet in thickness. Mr. Williams says it was reported to be 12 feet in 

 thickness.! Its quality was probably inferior. The mine was opened 

 by Mr. McSorly, about the year 1843 or 1844, and the site is within 

 the boundary of the village of Dhosul. 



The next seam of coal met with is one, which, from its size, and also 



from the very variable quality of the fuel it affords, 



recalls the great beds of the Lower Damtida. 



It is 22 feet in thickness, without partings of shale, and is overlaid by 



3 feet of blue shale, upon which rests sandstone. The high dips of 



10° and 15° prevailing about Chokidanga are here succeeded by nearly 



* That is, there are two backs, one striking North 35° West and South 35° East. The other 

 North-east to South-west, 

 f Report, page 28. 



