152 WYNNE: TRANS-INDUS SALT REGION, KOHAT DISTRICT. 



conglomerate in these sandstone beds, containing- numerous pebbles of 



limestone with alveolina and nummulites enclosed, 

 Limestone pebbles in 



lower tertiary sand- both in the pebbles and in the base. Flinty, 

 cherty, and sandstone pebbles of the same kind as 

 the beds above and below this conglomerate also occur with the limestone 

 ones, so that this may be one of the shore deposits of the early part of 

 the tertiary sandstone series, the derived contents of which certainly 

 afford no more evidence of unconformity between the limestones and 

 sandstones than of unconformity within the latter group itself, but may 

 rather indicate formation in shallow water, within reach of wave action, 

 or of distribution of materials by along-shore currents. 



The same general succession and southerly inclination of the series 



of groups extends from hence towards Charpurra, 

 North of Charpurra. or 



north of which place a section of the ground 



would show again the anticlinal position of the rocks with the salt in 



the centre conforming to the curve, and the overlying groups dipping 



north and south at angles up to 50° and 60°. 



The great central synclinal of the lower tertiary sandstone series 

 Central tertiary sand- between the Bahadur KM and the southern 

 stone synclinal. ridges of the range, where it is broadest, forms 



wide open curves with steeply sloping margins, the convergent inclina- 

 tions becoming less towards the centre of the trough, in which situations 

 the beds are nearly horizontal, the latter position having evidently 

 added to their power of resistance to atmospheric erosion; thus the 

 hio-h plateau of Esar, almost surrounded by precipices, has remained, 

 and the higher mountain to the westward reaching an altitude of 

 2,838 (+70 = 2,908) feet. Where the synclinal becomes constricted 

 to the eastward, the beds are longitudinally faulted, 

 and where the sides approach to the westward, 

 compressed and complicated folding of the rocks takes place. (See 



section Fig. 41). 

 ( 256 ) 



