DUBRAJPUR, GROUP. 51 



which occurs in the hills. There is, however, no trap to be seen in con- 

 nection with it now. 



How far rocks of the Dubrajpur group may underlie the trap which 

 skirts the Bansloi valley is uncertain. Throughout the greater portion 

 of it, however, the trap seems to rest immediately upon Barakars, but the 

 sections are for the most part very much hidden. 



From Burgo hill northwards, for a distance of about fifteen miles, 



the rocks of the Dubrajpur group are found underlying the trap with 



only one break. This occurs south of Bajabhita, where the trap rests 



immediately on the gneiss. Two similar cases of 

 Overlap by trap. 



overlap of the trap have been elsewhere observed. 

 These will be described further on. 



In the valley of the Gumani river, which is better known as the 



ox- . ™_ X.-U-J. Chuperbhita Pass, there is a repetition of the 

 Section in Chuperbhita r * r 



Pass « geological structure and relationship of the differ- 



ent rock groups which have just been described as existing in the valley 

 of the Bansloi. 



Excessive overlap of the Dubrajpur group by the trap, and of the 

 Barakars by the Dubrajpur group, is here even more marked. In both 

 cases this is probably mainly attributable to denudation, which has 

 removed the underlying rocks. In the north-east corner of the valley 

 near Bunijura, the Dubrajptir rocks are seen to lap over Barakars on to 

 gneiss, and to be themselves, a little further on, overlapped by trap. In 

 their western extension the same rocks pass over the edges of the Bara- 

 Se ti n t Kharma- ^ars on ^° ^ ie Talchirs, and over them again on to 

 tand - the gneiss near Kharmatand.* At this last-named 



place there is a good section of these rocks, which consist of ferruginous 



* Kharrnatand village is not given on the general map, but its position is half a mile 

 north of Bhulki. 



( 205 ) 



