66 WYNNE : GEOLOGY OF THE SALT EANGE IN THE PUNJAB. 



No. 4. — The last group is closely succeeded by a strong and fre- 

 quently much harder zone, characterised to the east by 

 hard magnesian and other light-coloured sandstones 

 with beds of dolomite. It also dies out westward. The 

 continuation of the succession above this group differs 

 in different parts of the range. 



No. 5, — Near where No. 4 becomes divided and no longer trace- 

 able as a connected group, its beds are succeeded by a 

 softer and coarser set of granular, strongly bedded, 

 sandstones, surmounted by pale lavender -colon red clay. 



No. 6. — testing immediately on the last is a group of limestones 

 chiefly crowded with carboniferous fossils, and only 

 developed at the western side of the range. 



No, 7. — So intimately united with the preceding as to appear to 

 form a conformable upper portion is another group of 

 limestones, sandstones and shales or clays, in which 

 fossils are numerous. It is not quite so extensive 

 laterally as No. 6, and between these lies the boundary 

 separating the palaeozoic and mesozoic rocks, this upper 

 group being of Triassic age. — (Waagen.) 



No. 8.— -To carry on the succession we must again turn to the 

 eastern part of the range which groups 6 and 7 do not 

 reach. Here, resting upon No. 4 and disappearing near 

 the commencement of No. 5, is a group of thin, flaggy 

 sandstones interstratified with blood-red clays, which, 

 from its general relations to the rocks above, has been 

 considered to occupy nearly the same place as the dis- 

 tant westerly group No. 7, both being probably Triassic, 

 though this can only be decidedly stated for the former. 



No. 9. — The next group lies in the far west of the range succeed- 

 iugNo. 7. It contains white, red, and soft sandstones, 

 ( 66 ) 



