46 WYNNE : TRANS-INDUS EXTENSION OF THE PUNJAB SALT RANGE. 



give about the following proportions on the southern aspect of the 



mountains : — 



Ft. 



Nummulitic ... ... ... ... ... 1,000 



Jurassic ... ... ... ... ... 1,100 



Trias ... ... ... ... ... 450 



Carboniferous ... ... ... ... ... 1,000 



A massive outcrop of nummulitic limestone forms the crest, shedding 

 masses of debris over the lower slopes. These, nearly to the base, are 

 formed of the Jurassic rocks ; and a large dislocated and subsided mass of 

 the nummulitic limestone lies along the base of the range, broken but 

 nearly continuous as far as the village of Kotki. Here it is closely 

 flanked by a quantity of the tertiary, gray sandstones and red clays, hav- 

 ing much more the appearance of the lower portion of that series than 

 the Siwalik beds at Uch. 



The nummulitic limestone was evidently once in anticlinal form, con- 

 tinuous with that of the crest and northern side 

 Chichali pass section. 



oi the range, but is now separated by faults, such 



as are (some of them) visible in the Chichali pass section. 



This important section is described at page 276 of the Salt Range 

 Memoir, and figured on Plate xxxi, fig. 55, of which a copy is here given 

 in fig. 3 (opposite). The southern portion shows partial inversion 

 and much crushing and displacement; the northern part is regular 

 and gives the following succession within the glen, in which the formerly 

 more extensive alum works are situated. It is extracted from the source 

 mentioned : — 



Succession. 

 fRed clays (17) and gray and greenish tertiary sandstones') 

 Teetiart ) Qg\ ^^ gome k e( j s £ p Seu do-conglomerate contain- C Very thick. 

 SANDSTONES, &C. J \ 



(_ ing bone fragments (15). j 



14. Strong compact light gray nummulitic cliff -limestone of Ft. 



the Darwaza ... ... ... ... 500 



) 13. Nummulitic marls and (12) dark shales ... ... 150? 



ill. Lower nummulitic lumpy limestone ... ... 150 to 200 



10. Alum shales resting parallel on an eroded surface of the 



beds below ... ... ... ... 30 to 40 



( 256 ) 



Nummulitic 



