SON PLATEAU. 205 



No. 4 is no longer present. The coarse and often conglomeratic 



sandstones of group No. 5 are strongly developed and overlaid by 



nearly 180 feet of the upper lavender-coloured clays, the whole group 



considerably exceeding 300 feet. Above this is No. 6, the carboniferous 



group, limestones, &c., quite 300 feet or more thick, and the nummulitic 



limestones as usual form the high cliffs of the escarpments, having a 



thickness of about 300 feet also. A considerable fault extends along the 



e-len and turns with it above Nursing-pho^r. This 

 Fault. *= . . . 



fault has displaced a portion of the northern side 

 of an east-and-west anticlinal curve, formed by the groups Nos. 2, 3 

 and 4, in the cliffs opposite to the Pir — a sacred and picturesque 

 locality where there are fine springs overlooked by some Fakirs' residence 

 and temple perched upon a ledge more than half way up the cliffs. 



On the left side of the glen the stream from the Chamil part of 



the plateau falls over the lofty vertical limestone 

 Coal stales, &c. 



cliffs of the escarpment into a small rock-basin, 



the sides of which expose a section in the basal beds of the nummulitic 



group (fig. 35, Plate XXI). The readings of the aneroid barometer 



(uncorrected for temperature), indicated a difference in elevation between 



the basin and the cliff-edge above of more than 500 feet, most of this 



being made up of the following section : — '^ 



f Compact nummulitic limestone in two bands 

 A thin shaly band 

 Thick limestone ... 

 Earthy, thin-bedded, lumpy, and shaly limestone 



Nummulitic 



Black shales, part sandy, with a few coaly layers below 20 

 Sandy and shaly beds of dark or ferruginous colour, with 

 pyrites ... ... 



Coal from 6 inches to a foot 

 Black sandy bed, carbonaceous and pyritous 

 Black shales 

 (^Coal ... ... ... ... ... 6 



Ft. 



In. Ft. In, 



200 







10 







28 







50 









— 288 



20 







8 











9 



1 



6 



2 







* Part of this section also appears in Dr. Oldham's paper, " On the Mineral Resources 

 of the Salt Range, Bannu and Kohat districts ;" previously noticed. 



{ 205 ) 



