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



is obscurely seen in a few spots mentioned in 

 Salt localities. 



the appendix as the Manzulli localities. The 



sketch section given in Fig. 17 crossing the range south-west of Aman 



Kot will convey a better idea of the state of things than any elaborate 



description. The range is here about two miles broad. 



1. Rock-salt (place of). 2. Gypsum and clay. 3. Gray clays, brown sandstones and thin limestone 

 layers, nammulitic. 4. Red clay zone. 4. Place of ditto. 5. Nummulitic, lumpy, and alveolina lime- 

 stone. 6. Lower tertiary sandstones and clays, the very lowest of the former, in places conglomeratic. 

 F F. Faults. 



The general obliquity of this section would suggest that the con- 

 Oblique result of the Porting north and south pressure was transmitted 

 contorting force. through the rocks at a considerable depth from 



the then surface of the ground towards which the opposing resistance 

 proved strong enough to cause an underthrow of the whole section 

 towards the south. 



The region of this disturbance may have been considerably more 

 deeply seated than the present place of the contortions when it is re- 

 membered that hundreds or even thousands of feet of upper tertiary 

 sandstones and clays may have once reposed above the highest beds of 

 the range. 



The disturbance, though great, seems not to have been limited to the 



ordinary anticlinal and synclinal curves, but dislocation also, as one result 



Disparity of opposite of tension, apparently took place. In the centre 



sides of contortion. of fa e ma i n fold f the ridge where the rocks might 



be supposed to have had least room for alteration or motion, a certain dis- 

 parity of the bed of the gypseous series and those close above the latter 

 on each side of the axis may be observed (similar in a general way to 

 that noticed regarding the sections north of Ismail Khel), so that both 

 sides of the anticlinal within the hard nummulitic limestone are not close 

 counterparts of each other. It may be supposed that the curve of the 

 beds now incomplete was sufficiently extended to have admitted of some 

 lateral changes during deposition, sandstones and clays predominating at 

 ( 208 ) 



