128 MIDDLEMISS: GEOLOGY OF HAZARA AND BLACK MOUNTAIN. 



The geological section exposed in the Rutwala stream is very 

 simple as far as Sihali, being entirely among the schistose rocks. 

 At Sihali the boundary fault crosses the stream at the same place as 

 the latter takes a turn to the east. The rocks east of the boundary 

 fault are nothing but a much-folded complex in the Infra-Trias lime- 

 stone with no representatives of the Trias or felsite left. 



The following section will illustrate this point : — 



Sihali. Koonhar R. 



Fig. 10. 

 c' «=* White quartzite. 

 c = Infra-Trias limestone. 

 b = Slate series. 

 a = Schistose rocks. 



The whole of the hill-side on the right bank of the Koonhar 



„ . _ , between the Rutwala stream and Gurhee- 



Section near Gurhee- 



Hubeeboolah. Hubeebooluh is composed of a continuation of 



the Infra-Trias limestone of the above section, presenting sheer pre- 

 cipices to the river, with the exception of the actual river-bed itself, 

 which, in several places, is seen to be cut down to the slates beneath. 

 1 he junction of the two rocks is not well seen, and there seems to be 

 no trace of the basal conglomerate, though some beds of the purple 

 quartzite or sandstone, visible along the river-bed, may belong to the 

 Infra-Trias. There are indications that the Infra-Trias limestone 

 is much folded in its relation to the slates. 



On the left bank of the Koonhar, round about Gurhee Hubeeb- 

 ooluh, there occur slates, schistose slates, and schists. In the space 

 between the Rutwala stream and Jubree the change from slates to 

 schists has been accomplished, and from the occurrence of all inter- 

 mediate steps between a normal slate and a normal schist, it seems 

 ( «28 ) 



