130 MIDDLEMISS: GEOLOGY OF HAZARA AND BLACK MOUNTAIN. 



Sobruh Gulee, 



N.W 



Fig. 40. 

 f= u Tanols, n Schistose rocks and crystalline limestone bands. 

 e = Infra-Trias limestone. 

 c' = Purple banded shales/ 

 d'= Purple sandy limestone/ 



d*= Coarse and fine purple, white, and grey quartzite and sandstone. 

 c = Purple shale. 



6= Basal conglomerate, Infra-Trias. 

 a — Slate series. 



with regard to that section, first that the basal conglomerate, which 

 is about 30 feet thick, is made up of fragments of nothing but rocks 

 such as the slates and quartzites below it. There is no trace here, as 

 also there was none at Sirban, of gneissose rocks, or of any highly 

 crystalline schists embedded as pebbles in the conglomerate. But 

 the conglomerate as a whole has nevertheless assumed one of the 

 first aspects that a rock suffering metamorphic change usually takes 

 on, inasmuch as the pebbles have been turned round in their soft 

 matrix, sheared slightly one over the other, and arranged with their 

 long axes at a high angle with their original plane of bedding. 



Abundant exposures along the stream running towards Puswal 



shew this aspect of the rock in many striking sections. Near that 



village also, and further on near Dhareh, the unconformable lie of 



the coarse conglomerate on the top of the slates is plainly indicated 



( 230 ) 



