96 WYNNE : TRANS-INDUS SALT REGION, KOHaT DISTRICT. 



the dislocation at the junction would seem to require more than one- 

 fault to account for the positions of the rocks, the red clay zone, the 

 gypsum, and thick greenish-gray clays of the gypseous series being all 

 forced into strange positions by faulting or slippage, or both. 



From this place, for many miles to the east, considerable regularity 

 Regularity to eastward Prevails, and the ridge presents the same features,— 

 along outcrop. a ver ti C al rib of nummulitic limestone forming 



its centre and crest flanked on the north by equally highly disturbed or 

 vertical sandstones and clays, among which a purple tinge predominates, 

 and on the south by a steep talus covered with limestone debris, occa- 

 sionally showing some protrusion of gypsum or some landslipped masses 

 of the limestone from above, or from its colour indicating the presence 

 of the red clay zone beneath the detritus. 



It maintains this character on the south side the whole way to the 

 Indus, where it suddenly disappears, but on the north in the vicinity of 

 Turwabeyra (Turwab^ra) it becomes connected with another parallel 

 mountain about five miles in length, both rising together to a much 

 greater elevation than the rest of the ridge. 



All round this other mountain, one end of which overlooks Wee- 



joosum (Wijtisum) and the other Drubbokus, the 

 Mountain between 

 Turwabeyra and Drub- rocks and their arrangement are plainly visible. 



Along its whole length the nummulitic limestone 



occupies the highest ground, forming open, easy curves dipping from 



a nearly straight but broken scarp in southerly directions, where it 



becomes overlaid by the lower tertiary sandstones or Murree beds. 



These latter form two synclinal troughs, meeting endways on the high 



ground, and at one spot turning over somewhat as a horizontal cap 



covering the highest part of the ridge to the south. 



The regularity of the beautiful curves formed by these sandstone 



, „ outcrops is but slightly disturbed at a place near 



Fine example of cur- l ° J 



vature of strata. jfa Q Indus termination of the southern ridge where 



the beds in the opening of the widest trough, eastward, form one 

 ( 200 ) 



