172 WYNNE: GEOLOGY OF KUTCH. [PART 11. 



line against the coarse^ white, upper sandstones for a little distance. The 

 rocks to the north of this place having an intermediate or lower aspect, 

 they have not been included in the upper group. Between Kundwinga 



hill and Kanpoor the upper sandstones roll in an 

 Kanpoor. ... 



open curve over an axis having a slight westerly- 

 inclination. To the south the plain is sandy, and in a north-west direc- 

 tion, open rocky ground, over which sandstones and shales undulate, is 

 dotted by small hills of intrusive trap, or else crossed by dykes which 

 seem to have, as it were, strengthened the sandstones sufficiently to cause 

 the occurrence of these elevations. Some nearly horizontal beds of sand- 

 stone form a small flat topped hill at Kanpoor, and another near it, while 

 some hillocks slightly above the sandstone plaia at Mujull are crossed 

 by a strong north-west basaltic dyke. Lying further west are the 

 extensive ruins of Poorugud, said to have been destroyed by the 

 earthquake of 1819. Much of the building, however shaken, is still 

 standing. 



To the south and south by west the hills of Rojla and Drabwa rise 

 Eoila and Drabwa abruptly from the plain, the former somewhat of 

 ''^^^- a ridge, the latter a flat topped hill with steep, or 



in places precipitous sides and an elevation of 400 feet. Both of these 

 hills are capped by strong coverings of trap, which may either be 

 intrusive, or have formed portions of one of the thick early flows of the 

 stratified trap series. That on Drabwa is dark, basaltic, and magnetic, 

 sometimes rudely columnar, and, being in places coarsely crystalline, when 

 weathered it much resembles a dark syenitic greenstone. It rests upon 

 the white sandstones and ferruginous beds of the upper Jurassic group, 

 which stretch everywhere beneath the adjacent plains and enter the 

 sinuosities in the boundary of the bedded traps. 



On Rojla hill east the trap is also basaltic, but was not observed 

 to be columnar, while the stratified traps covering the higher ground of 

 ( 172 ) 



