126 SUB-HIMALAYAN ROCKS OF N. W. INDIA. [CHAP. IV. 



half-way through the gorge the river takes a sweep to westwards, leaving 

 on its left bank a terrace of these western rocks. Along this terrace the 

 contrasting dips can be seen almost in contact. Towards the dun this 

 line of fracture bends off, and seems"to identify itself with an anticlinal 

 line traceable along the southern edge of the Kyarda dun, as far as 

 Kolur. The section on the right bank of the Jumna is a good deal 

 more complicated than the Hurdwar section. The anticlinal of the 

 Kyarda dun, which we have doubtfully traced into connection with the 

 main Sivalik anticlinal, is obscurely seen in the Batta just at its con- 

 fluence with the Jumna ; there appears to be more or less of faulting 

 too ; yellow boulder clays on the north are in crushed contact with 

 sandstone and sandstone conglomerate on the south. A south-westerly 

 dip soon becomes steady in these latter rocks, and continues so for four 

 miles to Kalesur, in the coarser conglomerates. In the ridge south of 

 Kalesur these same beds rise by a sharp uniclinal curve to a high north- 

 easterly dip, thus forming the most prominent ridge of the range ; it is 

 this ridge which bends round in continuation with the crest of the range 

 south of Kolur, thus cutting off the wedge-shaped area of the south- 

 westerly dip. Orographically, and to some extent structurally, this area 

 occupies a very analogous position to that of the Motichoor rao at the 

 Ganges. At the south-east angle of these hills, next the Jumna, we 

 have another change in the section ; for a mile or more the conglome- 

 rates and sandstones dip at 80° to the southwards, the strike thus con- 

 verging to that of the ridge. A culmination of this convergence seems 

 to be reached before we lose sight of the rocks ; since in the river bank, 

 below Fyspoor, the same beds dip at 80° to the south-east. Here also, 

 as at the Ganges, we observe a maximum of disturbance in the external 

 portions of the range. 



In the case of the Jumna there is nothing to interfere with the 

 suggestion, that the irregularities in the actual state of disturbance in 

 the region of the gorge may be, in a great measure, owing to the unequal 



