54 RANIGANJ COAL FIELD. [CHAF. IV. § 2. 



12. Coarse carbonaceous and ferruginous sandstone, false-bedded, 

 and in places passing into shale. 



13. Coarse brown grits, with little pieces of quartz, only imperfectly 

 rounded. 



14. Carbonaceous shale. 



15. Coal, thickness not seen, but apparently consider- 



able, about ... ... ... 1 5 feet. 



The lower part of the seam contains trap. 



16. Coal and carbonaceous grit, with trap, about ... 20 „ 



17. Light-brown sandstone, with some pebbles, and a few 



shaley beds mterstratified, about ... 10 „ 



18. Trap ... ... • •• 2 „ 



19. Black carbonaceous shales and sandstone ... 10 „ 



20. Conglomerate, quartz pebbles in white felspathic grits 



and sandstones ... ... ... 60 ,, 



/Black carbonaceous shale ... 6 \ 



21. ] Sandstone ... ... 2 > 13 „ 



\ Black carbonaceous shale ... 5 ) 



22. White felspathic sandstone, with pieces of quartz and felspar, 

 and a few hard bands. 



The only coal seam worthy of notice is No. 5, 12 or 14 feet thick, 

 which is seen between Alkusa and Gopalpiir. Like most of the seams 

 in this neighborhood, it is much cut up and hardened by trap. A 

 smaller and thinner seam underlies it. 



West of the Ntinia and North of Lachmanpur, Lalbazar, &c, 



the beds are much twisted and faulted, and are 

 Measured section near 



Lalbazar. still full of trap dykes, which, indeed, occur 



more or less abundantly throughout the Lower Damuda rocks, and 

 almost always send out ramifications into the coal seams. The lower 

 beds here are similar to those already described as occurring North 

 of Samdi: the higher beds are well seen just North of Lalbazar, 



