150 WYNNE: TRANS-INDUS SALT REGION, KOHAT DISTRICT. 



of its area it conforms to the southern side of the anticlinal curve, there 

 strongly indicated by the overlying strata. But on the northern side of 

 this curve, nearly midway between Ragho and Bahadur Khel, the differ- 

 ent groups are much disturbed where two small and rather isolated hills 

 stand out from the adjacent ridge. 



The most easterly of these shows several slips, repeating the out- 

 Contorted and slipped cropping beds of the red clay and nummulitic 

 sections to the north. limestone groups, and these are faulted against the 



adjoining tertiary sandstones, a few beds of which occupy a small con- 

 torted trough towards the western hill. 



The limestone here apparently retains its thickness of 50 or 60 feet, 



but the hard upper alveolina beds were not ob- 

 Limestone. 



served, those forming the local upper part of the 



group alternating with shaly bands and being highly fossiliferous. At the 



base of the limestones here are some thin, white, chalk-like layers, one of 



which is very conspicuous. These white, marly, chalky-bands continue 



downwards into the variegated clay below, in which 



three or four of them occur ; this clay has the 



same pale purple tint as in the Kurshru section, but here it contains 



, manv small nodules of brown haematite and little 



Copper-stained concre- J 



tions - concretions stained of a brilliant greenish-blue as 



if by copper. Below this clay the coarse liver-coloured sandstones of 

 the red clay zone are much exposed, alternating with red clay layers and 

 forming a band of 20 or 30 feet in thickness. They are here conglome- 

 ratic, and again were found to contain bone fragments. The rest of the 

 red clay group below is much overrun by debris, but seems as thick as 

 usual. 



To the eastward of these hills the axis of the Bahadur Khel anti- 

 clinal comes out obliquely on the plain or valley to 

 the north, and is cut off by the continuation of the 

 fault at their northern side. Gypsum and gypseous debris with occasional 

 salt exposures and many crater-like hollows indicating its existence 

 ( 254 ) 



