96 WYNNE : GEOLOGY OF THE SALT EANGE IN THE PUNJAB, 



concealed, but "they reappear with largely increased thickness in the 

 part of the Verala^ scarp towards Pail and in the immediate vicinity of 

 that village. Still further to the westward they develope rapidly into 

 an important member of the series, having a thickness of at least four 

 hundred and fifty or five hundred feet, which would appear to be mantained 

 as far as the Chideru hills. In the narrow part of the range connecting 

 these hills with the Tredian cluster, the thickness appears less, but 

 increases in the latter hills near Swas. With the extension of these hills 

 towards the Indus the thickness again decreases, and the formation 

 strikes obliquely out towards the plain and disappears at Khyrabad. 



These carhoniferous limestones in their greatest development carry on 

 the scarp feature usually formed by the nummulitic 

 limestone, but with less regularity, being often 

 subject to intense contortion and slippage. The peculiarity of the way 

 in which they are sometimes decomposed in situ as mentioned at page 59 

 is well seen about Jalar lake and towards the Kavhad glen, while the 

 country which they occupy, with its rolling ground, sheeted by frag- 

 mentary debris, its steep precipices and deep ravines, has an aspect 

 peculiarly its own. 



Triassic Ceuatite Guoup. 



No. 7. — Immediately succeeding the carhoniferous rocks is another 



interesting but smaller formation, the existence of 



which was suggested by the doubts felt with 



regard to the place of some of the fossils sent by Dr. Fleming 



and Mr. Purdon to Europe for examination. The lowest beds of these 



triassic rocks are generally thin limestone with 

 Lowest beds. 



Ceratites, succeeded by a thick marly zone, that 



yields much to atmospheric disintegration and weathers of a light greenish 



colour, which enables the band to be distinguished from a considerable 



distance. These are overlaid by grey sandstone 

 Succession. 



and flaggy limestone layers with many Ceratites, 



passing upward into grey nodular marls. Hard limestones and calcareous 

 ( 96 ) 



