9 4 M1DDLEMISS: PHYSICAL GEOLOGY OF SUB-HIMALAYA. 



fault appears to have turned the dip in its vicinity at right angles to 

 itself. 



The country to the north of the Mundhal R. is composed of the 

 Country north of the Siwalik conglomerate up to, and beyond, the 

 Mundhal R. Dogadi sot ; and the beds seem to be very nearly 



horizontal, or with a slight flexure along the line of the Sunt sot (57)^ 

 In the upper part of the Dogadi sot the dip is 30 S. W. and W.S.W.: 

 but it lowers to 3 and becomes nearly horizontal on the north bank 

 of the stream. The lower reaches become much covered by Recent 

 gravels in the direction of Gouri-gha't ; so that it is difficult to say 

 how the rocks lie exactly, though they are very probably in a more or 

 less horizontal condition. The continuation of the sand-rock outcrop, 

 which appears east of Mundhal village, is last exposed in a very small 

 cliff in the Bheng N. ; save for one other isolated exposure opposite 

 Rhikikes (Rikheekhes) which has a high dip of 70 S. E. (not in- 

 cluded in the map). 



Kauria chaor (58), and the plateaux between the Bheng and 

 Rhikikes, are very much covered by Recent gravels ; so that we 

 can say no more about the Siwalik series here, than that they take a 

 great curve up the Ganges valley. 



It will be seen from the map that the main boundary in the Bheng 

 meets the north and south fault a little further north in covered ground, 

 and, therefore, that the Nahan rocks also come to an end with the 

 Bheng. Their position up to that point from the Laldhdng N. is 

 simply a continuation of the same normal ascending series that we 

 saw present in the latter stream. 



As described by Mr. Oldham, the sharp line separating the 

 Fault in the Mitawila Nahans from the younger Siwaliks is undoubt- 

 (Mithi) sdt. (59) edly a f au j t A remarkable feature of it, so far 



as the younger Siwaliks go, is that the latter, although their general 

 strike is nearly at right-angles to that of the Nahans, often have, in 

 the immediate vicinity of the fault, a sharp bending either down to- 

 wards or away from the fault. If the map be examined it will be 

 seen that the south-east edge of the Ch^ndi Hills, which follows the 



( 152 ) 



