NORTHERN WATERSHED OF THE TEEREE TOWEY BASIN. 91 



to the opposite, some of the beds there being vertical or even pushed over 

 beyond the perpendicular so as to underlie to the south. 



To the eastward the anticlinal opens, its southern side disappears, 



Gypsum and red zone bein S P™bably buried by a fault, and the northern 



within the curve. part of the curve coincides with the ridge to the 



eastward, passing by Shuwuki. Just where the southern limb ends, a 

 quantity of gypsum is seen within the curve at a place where ( salt mines ' 

 are marked upon the map. Here the ground looked as if it might once 

 have been disturbed artificially, but none of the natives could give any 

 information as to salt mines having been formerly worked at the spot: 

 the presence of salt here is notwithstanding by no means an impro- 

 bability. * 



A north and south section here through a little pass, used as a short- 

 cut from the Jatta salt mines to Lachee, is given in Fig. 9.— 



2. Gypsum. 3. Greenish clay with calcareous layers. 4. Variegated purple, red, and green clay with 

 sandy bands. 5. Dark, cherty limestone. 6. Shaly, nummulitic limestone. 7. Alveolina limestone. 8. Very 

 red clay. 9. Soft, greenish, and gray sandstones with a few harder bands and red clay beds. F. Fault. 



This section, like that north north-west from Ismail Khel, is 

 inverted, and liable to be misunderstood without 



Inversion. 



due weight being given to the prevalence of in- 

 version in many parts of the district. 



Approaching the Little Pass from Kurruppa, ridges of soft, greenish 



Pass south of Kur- sandstone highly inclined to the southward are 



ruppa section. met with in tlie Uttle p l am to the north. Clays 



among them are not much seen, being apparently concealed by surface 

 deposits while the sandstones project. Similar beds are seen at the base 

 of the ridge near the entrance of the pass, and higher up on the ridge 

 close to the limestone deep red clays appear, much overshot by yellowish 

 or buff debris from the latter. The limestone first met with is of the 

 hard Alveolina -bearing kind, associated southward with more shaly layers 

 containing Nummulites. All these beds dip to the south at 45°. Several 

 yards further southward is a strong dark band of cherfcy limestone dipping 



( 195 ) 



