66 MIDDLEMISS: PHYSICAL GEOLOGY OF SUB-HIMALAYA, 



points where they cut the fault separated by an enormous gap, re- 

 presenting a distance along the fault of about 1 1,880 feet, or 2 J miles, 

 which is a vertical distance of about 6,380 feet, or if miles. The enor- 

 mous compression which the strata must have suffered, to enable the 

 northern portion to work up over the southern, in this remarkable 

 way, has left considerable traces behind it, in the crushed and shat- 

 tered condition of the lowest Nahans, well seen at the junction of the 

 Pelani R. with the Rcimganga. 



In an E.N.E. direction the reversed fault follows the line of cliffs 

 which lie to the north-west of the P3tli dun ; all of which cliff-sec- 

 tions exhibit conspicuous crushing. At the most northerly point of 

 the dun where the strike changes, we find the continuation of the 

 fault (obscured by Recent gravels) changing also and taking an E.S.E. 

 direction to the south of the Sanguri sot. It is manifest that this 

 line of fold-faulting along its course, from near Dhansi chaor up to 

 the Kosi R., culminated in a maximum break in the Rcimganga ; and 

 that it dies away to a certain extent in each of the opposite direc- 

 tions. To the E.S.E., beyond the Kosi, in the Dabka R., we have 

 already seen that it becomes a mere monoclinal fold, and later we 

 shall see what becomes of it in the opposite direction. 



Our section now leaves the Rcimganga, and we enter the gorge 

 which the Pelani R. has cut out through the flexured and elevated 

 Nahan sandstone. Dips of 50 N. are first seen in the crumpled and 

 shattered sandstones and shales. These dips increase to 90 , and 

 we pass over a sharp synclinal. Then follows an anticlinal with axis 

 along the westward bend of the river, and north of this steady dips 

 N.N.E. continue for a long distance up the Pelctni R. or Tumriah 

 (Toomreeah) R (34). The amount of dip lowers from 7o°to 50 in 

 an ascending series of sandstones, which become less hard and less 

 jointed as they merge into the sand-rock. At the junction of the 

 Gutua (Gutu) gadh the sand-rock stage is fairly represented. The 

 change is coincident with a lowering of the surface of the country, with 

 a slight lowering of the angle of dip which now continues between 

 50 and 40 N.N.E., and with a change in the character of the river- 

 ( 124 ) 



