NORTHERN WATERSHED OF THE TEEREE TOWEY BASIN. 83 



Aloeolina, the latter frequently, and the sandstone portion of the group 

 may be from 300 to 400 feet in thickness. 



Hard, greenish-brown, clayey, calcareous bands begin to appear, and 

 at a distance of 15 feet below (but apparently above) fossiliferous 

 nummulitic limestone, sandy beds contain pebbles of limestone enclosing 

 Alveolina and Nitmmulites. 



At this point in the section the glen within the gorge is reached 

 and found to be occupied mainly by gray clays weathering of a greenish 

 colour, often covered with a white saline efflorescence, and, though undu- 

 lating at lower angles, presenting a conformable transition from them- 

 selves to the sandstone series at the head of the gorge. 



It is one of the most complete and delusive cases of the inversion 



tv , . c so common in the district : all the aspect of the 



Delusive appearance or ' r 



section, section from the lower tertiary sandstones to the 



south indicating an ascent to higher beds, among the highest of which 

 derived pebbles of limestone resembling that in the section would be met 

 with ; and yet this cannot be an ascending section, for the same nummu- 

 litic limestone may be found both at Lachee (Lachi) to the east and near 

 Durshai to the west, folding over anticlinal axes, and passing beneath the 

 tertiary sandstones,, &c. , which are thus shown to be inverted here. One 

 way of accounting for the fossiliferous limestone pebbles enclosed in 

 contemporaneous rocks has been noticed already at page 57. 



Between three and four miles to the eastward of the section just 

 described, the section from the Teeree (Tiri") valley 



Shah mountain section, 



up to the top or Shah mountain also exhibits the 

 inverted order of these beds with somewhat different features, the gypse- 

 ous series being introduced by a fault or faults, and even more of these 

 than are apparent being very possibly present. 



Fig. 6 shows the section up to Shah mountain from plain to south 

 in the Teeree valley. The figures, &c, are explained below : — - 



2. Gypseous series. 3. Red clay zone. 4. Nummulitic series. 5. Tertiary sandstone, clays, &c. 

 (Lower). F. Faults. 



( 1«7 ) 



