DESCRIPTIVE GEOLOGY: NUMMULITIC ZONE. 215 



A little east-north-east of Shah-ki-Noorpoor a still more southern 

 parallel range of Nummulitic limestone gradually rises from the 

 plateau, and after extending for some 9 or 10 miles, dies out again. 

 Between it and the greater ridge behind it a narrow band of the 

 Kuldanas starts near Shah-ki-Noorpoor, expands at Shah Darah for 

 a short way, and then becomes of the usual disjointed nature as it 

 keeps its regular line to join up with the typical Kuldana beds of 

 Clifden and Kuldana cross-roads. 



To the south-west of Sydpoor the next four or five side ravines 

 all shew exposures of the Jurassics in much the same sort of compli- 

 cated position as at Sydpoor, whilst beyond that the Jurassics con- 

 tinue as a narrow band to Sha-ala-Ditta to the Margalla pass (just 

 outside Hazara) and doubtless beyond. 



At Sha-ala-Ditta the following section is well exposed :— 



(1) Nummulitic limestone. 



(2) Iron-stone, brown and red . . • • • 5 e « 



(3) Bands of chrome-coloured limestone with compacted 



shells and interbedded with calcareous sandstones 

 containing Trigoniae . . • - - • 3° »» 



(4) Gieumal sandstone ...» • • I0 »• 



(5) Pale grey limestone .••••• 5 >> 



(6) Chrome-coloured limestone with thin beds or grey 



limestone, and with two compacted shelly layers . 50 „ 



(7) Dark purple-grey limestone blotched with ochre 



patches 20 >» 



(Fault.) 



(8) Murree sandstones. 



At the Margalla pass where the grand trunk road passes towards 

 Attock, and where the railway tunnels through the low divide, the 

 Trigoniae beds are well seen, but the sequence of the individual stages 

 is not so well seen as at Sha-ala-Ditta. 



Fig. 33 below shews the peculiar contortion of the strata at the 

 pass. 



( 215 ) 



