SEC. 8.] COHNTKY NORTH-WEST OF BHOOJ. 207 



Northwards^ a spur which leaves the trap escarpment near Vahar 



Spur of trap resting ^i'^) extending to the village of Nnkutrana^ has 



'"^■'"'^'' ■ all its summits capped by massive flows of trap. 



Two more outliers occur to the south of it, and some small hills not far 



from the above village are formed of intrusive trap. 



Another group of trap outliers, the most northern of which may be 



in part intrusive, lies to the north-west of this. 



Outliers. 



two of them capping the summits of Suri and 

 Pal Pakra hills, portions of a chain formed of the upper series, 

 which crosses the country from near Muttul towards the Runn and 

 terminates at Jogee Arul. The trap of these outliers is, as usual, 

 amygdaloidal and basaltic. 



The outer portions of the trap escarpment in this part of the 

 country are bold, and the white sandstones of the upper group frequently 

 appear at considerable elevations upon their steep sides, cropping, out 

 from under and contrasting strongly with the dark trap. 



On the line of depression which allows the upper Jurassic beds to 

 stretch across to the north side of the district is 

 situated Dhenodur hill (PI. IV), the fabulous vol- 

 cano of Kutch. It is one of the most prominent hills in the province, 

 rising to a height of 1,073 feet above the low ground near the Runn (or 

 causing an aneroid barometric depression of 1"2 inches). The hill is 

 mainly composed of the coarse and fine white sandstones of the upper 

 jura group, resting upon the transition portion of the lower beds, and 

 covered by a capping of basaltic trap, 180 feet thick. A large intrusion 

 crosses the northern foot of the hill bending to the north-west. This 

 may have been the source from which the overlying mass issued, or 

 the latter may have found a vent through what is now the interior 

 of the hill, the steep isolated character of which is manifestly due to 

 denudation. 



2 c ( 207 ) 



