NUMMULITIC ELLIPSOID FItOM MANZULLI TO BAN DA. 103 



three miles from the hills, the gray sandstones becoming soft and alter- 

 nating with darkish-gray and brown clay as the Kaffir Kot mass of 

 sandstones is reached. 



Eastward of the Rago-tungi and Turkainushbo Sirs* the sides of the 



Anticlinal eastward of anticlinal separate ; it is flanked by two smaller 



Bago-tungf. anticlinal folds, one on each side, both of which 



expose the nummnlitic limestone : indeed, that to the south also shows 



in a deep ravine some of the immediately subjacent beds. 



In this country greenish sandstones in thick or thin groups are not 



uncommon among the lowest or more decidedly 



Green sandstones in 



the lower tertiary sand- purple tinged portion of the tertiary sandstone 



stone series. . A 



series. A strong zone of these flanks the southern' 



side of the range north of Bahadur Khel, giving its side a distinctly 



green tint. This results very much from the position of the rocks, large 



portions of their surfaces being presented to the plain or valley, while 



the intervening clays stripped from these by erosion are hidden in small 



depressions, their concealment being no doubt largely assisted by the 



numerous arches into which the beds have been thrown. 



The limestone zone of the southern side of the hills is everywhere 



, .. ., intensely disturbed, often vertical, and sometimes 



Limestone (south side J ' 



of hills), and other rock. bending over to the north, as though to rejoin 

 that of the opposite side of the ellipsoid; just below it the usual red clays 

 are sometimes visible, but more frequently concealed by nummulitic 

 debris. Here, too, closely associated with the red clays of the red zone are 

 disturbed masses of the brownish sandstones and gray clays or shales 

 seen north of Murdan Khel and on Swanai Sir Mountains, while in the 

 centre of the range even forming some of its highest ground at the Man- 

 zulli boorj or chowH the gypsum appears strongly in great masses alter- 

 nating with gray or greenish gypseous Sheenkoura clays. The rock-salt 



* Called by the natives Raothungi and Threekanusbpa. 



( 207 ) 



