56 WYNNE : GEOLOGY OF THE SALT RANGE IN THE PUNJAB. 



Jalar, and to the north of that lake, sending off a nearly parallel branch. 

 The main fracture extends to the head of the A'mb glen, passing down 

 which it is lost among a multitude of parallel and other dislocations. 



In the Chiderii hills again faults abound, and also in the Tredian 



hills to the north-west ; all the fractures between 



Kavhad and those of the last-named hills uniting 



with the frequent minor dislocations, to produce the greatest confusion, 



amidst which the true succession of the rocks can only with difficulty 



be traced. 



The most extreme result of the faulting of the range is the mysteri- 

 ous, almost total, and abrupt, disappearance of the 

 whole western series intermediate between the 

 tertiary sandstones and clays and the salt-marl. From near Khyrabad 

 to the Indus, the faults themselves by which this has been effected have 

 left such slight traces to mark their course that, were it not for the 

 disturbance of the ground and the re-appearance of the series beyond the 

 Indus, discordance would have to be inferred in order to account for 

 the absence of the intermediate strata in this neighbourhood. 



If the range formed a simple symmetrical anticlinal curvature, its 



origin would be as easily explained as that of other 

 Elevation. . . ., , i i i i i • 



mountains similarly constructed by the hypothesis 



of lateral pressure, in some cases accompanied by the settlement of the 



mass ; but while the disturbance evidently tended to produce common 



anticlinal curvature, it only partially succeeded, so far as can be seen, and 



produced instead the uuiclinal structure described, with a more or less 



strong resemblance to the features of certain of the Sub-Himalayan hills 



bordered by fissures or what would amount to faults, if not in some cases 



absolutely dislocations. 



This resemblance is nevertheless incomplete, in so far that the sec- 

 tions across the Sub-Himalayan ground expose the boundary fissures and 

 adjacent structures, but in the Salt Range noLhiug whatever is known 

 ( 56 ) 



