10 HUGHES : KtJRHUEBARl COAL FIELD, 



The Talchirs curve after crossing- the Mohlichuan Nuddi, and skirt- 

 ing- the left bank of the stream, bend eastward spreading slightly; 

 then^ double back and cross the tank south of the village. 



They are very narrow from this point to Dandidih, and in the 

 broken ground in which the sources of the Komaljore nuddi occur, are 

 represented by only a hard, green, ferruginous sandstone, and an oc- 

 casional bed of needle shale. The bottom rocks of the series have been 

 overlapped. 



Opposite Dandidih, the Talchirs again spread out, and appear in 



the railway cutting south of a large quartz vein. 

 Talchirs near Dan- . i ,i m i q • 



didih. The relation between this vein and the iaicnirs, 



is one of natural contact. Although predisposed 

 to accept the quartz as evidence of a fault, I was unable, in the present 

 instance, to find any justification of such a view. I failed to find any 

 pieces of Talchir rock mixed up with the quartz, or any other mechanical 

 proof that a slip had taken place. The beds seen are not the^ "lowest 

 in the series, but the tendency of the strata to overlap accounts for 

 what otherwise might be urged as partial evidence of a throw. 

 The Talchirs are banked up against the quartz. They were possibly 

 deposited on the north also, but the slope of denudation being south- 

 ward, they have been removed from that side more rapidly than on the 

 other. 



It is important to thoroughly understand the relation of this quartz 

 to the sedimentary rocks, as it settles the relative ages of the two, and 

 bears upon the appreciation and true reading of quartz vein phenomena 

 in other coal measure districts. 



From Dandidih southwards, along the boundary, the Talchirs do 

 not appear continuously, the Barakars being the contact rock with the 

 metamorphics in places. Near the mines at Buriadih, the Talchirs are 

 finally overlapped. 



( 218 ) 



