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



Hard dolomitic flaggy bands alternating with thin grey 



shales, having yellow partings ... 3 to 5 feet. 



Dark grey gypseous shale ... ... ... 5 



Red marl again underneath ... ... ... (?) 



Still further up the glen a similar group of beds is again- seen with a 

 25-feet band of salt immediately above the upper purple portion of the 

 saline marl ; the same kind of greenish beds^ but without the salt, re- 

 appear where a stream from the east enters the main channel. As there is 

 a large quantity of the salt-marl exposed here, and these thin-bedded bands 

 are generally seen in the lowest situations, it might be inferred that they 

 occupy a low horizon in the group, but their association in this place with 

 rock salt, which is usually found near the top of the marl, and the 

 possibility of slips having taken place, render the relation of the flaggy 

 layers a matter of doubt. 



The large glen of Varcha is separated from an upper and smaller one 



^^ , by a cliff of the carboniferous limestone, which 



Upper glen. 



must have subsided considerably, for the underly- 

 ing speckled sandstones are slightly visible, forming the floor of the upper 

 valley. On both sides of the smaller glen the carboniferous beds are 

 fossiliferous, containing, with other forms, some fine specimens of a large 

 Streptorhynchus. In the upper part of this glen, where crossed by the 

 road to Uchali (hardly passable) , the greenish trias 

 beds occur in a synclinal of the carboniferous 

 rocks, the latter being much folded about this part of the Son plateau. 



Between the mouth of the Varcha glen and that of the Amb valley 

 Between Varcha and there is another large oval exposure of the " salt 

 marl/^ the " purple^' and the " speckled" sandstone, 

 and the carboniferous gi'oups, evidently much dislocated and not in consec- 

 utive order. At the north-western side of this exposure there is again 

 the appearance of some of the red marl overlying a lower portion of 

 the purple sandstones, but the country is so slipped that appearances 

 cannot be trusted. Between these two glens the red marl is very 

 generally traceable along the base of the hills. 

 ( 232 ) 



