46 GRIESBACH : IIAMKOLA AND TATAPANI COAL-FIELDS. 



Between the villages of Bhalui and Boder the beds are much shattered ^ 

 and a series of local parallel faults run across in a south-west to north- 

 east direction. Since we find trap dykes along these lines of disturbances^ 

 similar to the Nowadih section, it is probable that the local disturbances 

 are only owing to the eruption of trap. The Ledho and Bhalui nullahs 

 afford the only opportunities for examination^ so it was impossible to trace 

 the lines of faults beyond the beds of the rivers^ and I had to trust to con- 

 jecture for the remainder.^ In the Ledho south of Bhalui I observe the 

 coarse Panchet grits to dip southwards, where they are suddenly cut off, 

 thrown down to the level of the Barakars, which dip there at 8°, to east ; 

 descending I found : — 



a. Thin-bedded sandstone and shales. 

 . i. Grey clays with patches of variegated shales with— 



Vertebraria indica, Royle. 



Glossopteris communis, Fstm. 



c. Ripple-marked sandstone with partings of iron ore. 



d. Green micaceous marly shales, somewhat like Talchirs in appearance. 



e. Marly yellow and reddish shales of great thickness, near base friable grey 



shales, 

 /. Thin bed of coal, 

 ff. Same as e. 



h. Coal with shaly partings 5' 2." 



i. Greenish marly shales, breaking into small rhomboidal fragments, with in- 

 tercalated grey shales and a parting of bituminous shales 1.'' 

 ;. Great thickness of bituminous shales. 

 k. Grey micaceous fine-grained sandstone. 

 I. Blue shales. 



Trap dyTce. 

 Barakar sandstone and shales. 



Trap dyke. 

 Barakar sandstone jointed into brick-like masses. 



Trap, 

 Blue shales with coal seams above sandstone beds, dipping about 70° east. 



' This remark applies also to the Sita Chua and Nowadih sections ; rocks appeared 

 in situ only in the beds of the streams, and the lines of fault had to be continued in per- 

 fectly straight lines as shown on the map, owing to the obscurity of all the interveuiug 

 country. 



( 174 ) 



