EASTERN PLATEAU. 157 



cipices arc inaccessible, but the section seems to be generally the same 

 as eleswhere, though the group, No. 3, looks thicker, and seems to 

 contain some harder beds than usual. 



The red marl is seen far below the fort, the purple sandstone follows 

 next above ; and the dark shaly zone (No. 3) is capped by the magnesian 

 sandstone, on which rests a small patch of the red flaggy pseudomorph- 

 zoue. 



Between the fort and the plateau the rocks are much broken, and 

 the ground is covered by heaps of disintegrating rock. The '^ olive 

 group " and " salt-crystal zone " skirt the base of the " nummulitic lime- 

 stone ■'■' cliffs, and a fault seems to extend from the eastern side of Kiisak 

 peak, up the shallow valley in the plateau-limestone, through which the 

 road from the fort passes northwards. 



On the spur which separates the Kusak from the Khewra " beat " to 



the west, and along the neighbouring part of the 

 Spur to west. . 



plateau, the ground is much broken and very hilly, 



the same series as before being traceable in the cliffs and higher emi- 

 nences as well as the upper portion of the underlying beds, exposed by 

 denudation, beneath the limestone of the plateau. 



In this direction, too, where a high peak of limestone rises to the 



north-north-east of the Mayo mines, there is a 

 Coal shales. 



small exposure of the coal-shales dipping to the 



north-west at 24*^, just beneath the nummulitic limestone. Coal was 

 said to occur here, but it was not visible. In the vicinity of the road from 

 Khewra to Kusak, the rocks are greatly dislocated, as well as to 

 the southward; several fragmentary outliers of the nummulitic lime- 

 stone, patches of the red flaggy zone, the lateritic variegated clay, 

 and even a small portion of the coaly shales just now alluded to, 

 occurring detached, and probably none of them actually in situ. 

 Further out towards the plains, the least disturbed ground is occupied by 

 the massive beds of the magnesian group undulating in many directions, 

 but the hill-slopes are greatly covered by debris. Both the silurian 



( 157 ) 



