1853.] Report on the Geological Structure of the Salt Range. 253 



Besides the general outcrop of marl along the escarpment of the 

 Kange, we have noticed it under the red sandstone on the N. W., on 

 the scarped side of mount Kuringali, the path between the villages of 

 Chumbi and Vevhalee passing over it. Here no salt was observed, 

 but the marl contains abundance of gypsum, and its surface is in- 

 crusted with the usual saline efflorescence. At the west end of the 

 salt lake of Kullur Kuhar, the marl also occurs in small quantity, 

 appearing to have been forced up through the rocks immediately 

 superior to it, and to be brought into contact with nummulite lime- 

 stone by which it is covered. 



At Yusual to the north of JNoorpoor we believe the salt marl with 

 salt occurs in a deep ravine, but as we were not aware of the fact 

 when in ij:s neighbourhood, we never visited the locality. This, as 

 far as we know, is the only spot where salt has been found on the 

 north side of the Salt Eange. 



b. Lower Red Sandstone and Grit with Conglomerate. 



"Wherever the salt marl is seen at the base of an escarpment, its 

 upper portion may be observed gradually to lose its brick-red colour, 

 to become more like an indurated clay, and ultimately to pass into 

 thin beds of dark red, fissile, argillaceous sandstone, which in some 

 places alternates with thin beds of gypsum and salt, and with green 

 and chocolate-coloured clays. 



This sandstone gradually loses its argillaceous character, its beds 

 become thicker, its colour lighter and, by its constituents becoming 

 coarser, passes frequently into a grit. Conglomerate bands chiefly 

 formed of boulders of primitive rocks of moderate size, among which 

 the prevalence of a red coarse-grained syenite is very remarkable, 

 occur frequently, and present exactly the characters of the old red 

 sandstone conglomerate of Britain. 



The sandstone generally, but especially its lower beds, where they 

 approach the marl, is highly hygrometric, and frequently presents on 

 its surface a saline incrustation. 



It does not disintegrate in muriatic acid, but a portion dissolves 

 with effervescence, the solution yielding to the usual tests, abundant 

 indications of carbonate of lime and carbonate of magnesia. 



The ease with which this sandstone can be quarried is a strong 



2 K 



