Chap. IY. § 4.] 



RANIGANJ GROUP. 



105 



The coal is of good quality. Not many feet lower is a second 

 seam, which has also been quarried close to the Nunia, but which 

 is, where exposed by the stream, so cut up by trap as to be worthless. 

 These seams must be much higher in the series than that of 

 Puriharpur. The Mainanagar seam is now being worked by Messrs. 

 Erskine and Co. on the right (West) bank of the Nunia, at 

 Dadkia. 



Blue micaceous shales and felspathic sandstones, all dipping steadily 

 to the South-west, follow, and contain one seam of coal 2 feet thick, 

 but the higher series of the Panchet beds come in on the Nunia, 

 about half a mile South of Mainanagar. The stream, for some distance, 

 continues along their strike, and just inside their boundary, until it 

 turns sharply to the East, about due North of Asansol, exposing flagoy 

 sandstones dipping to the West, Near to the spot where a rather laro-e 

 trap dyke crosses the stream, a seam of coal 4 feet 6 inches to 5 feet 

 thick is seen, in which a small mine is worked by Messrs. Acland 

 and Co., at Sath Pokaria. The coal is of excellent quality, probably 

 surpassed by none in the field. The roof in this case, as in many 

 others, is coarse, hard sandstone. 



A little further East, the Western and Central branches of the 

 Nunia join, and not far below the seam last mentioned, the following 

 section occurs : — 



Coarse felspathic sandstone ... 



Shale and shaley sandstone ... 



Coal 



Shale and thin sandstone alternating, and containing fossil plants 



Fine gray sandstone... 



Carbonaceous shale and coal ... 



Shale and shaley sandstone alternating. 



Blue sandy shale ... ... 



Thin-bedded sandstone 

 Carbonaceous shale ... 



Ft. in. 

 50 or 60 feet seen. 

 5 





 3 

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 6 

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