SEC. 7.] THE CHAEWAE AND KATROL EANGE. 197 



full of brancLing fern-like plants, of which as they ramify through the 

 rock it is impossible to obtain good specimens. The beds dip north at 5° 

 to 10°, and the fossils are similar to some occurring near Jooria in a 

 white argillaceous rock. 



Westward of this the upper Jurassic ground contrary to its usual 



habit forms hilly spurs projecting into the trap 

 East of Rolia. 



area, the latter occupying the adjacent low 



ground. This unusual occurrence is almost entirely confined to the 



localities indicated, east and south-east of Roha, where the sandstones 



are in places highly silieious and compact. 



The Rakal Hills south-west of Nunnao are formed by some of the 

 lower flows of the bedded traps, with general in- 



Eakal Hills. ... .... 



clinations in the direction just mentioned. As usual, 

 their boundary presents more or less of an escarpment, but this seems to 

 have resulted rather from the diflference of texture between the trap and 

 underlying sandstones, than from any connexion between the inclinations 

 and the denudation of the flows, both conditions having elsewhere 

 combined to produce the boundary escarpment and outlines of the 

 trap area. 



In the valley of the stream which passes Seesaghud, some basaltic 

 trap appears to have been intruded between the 



South of Koorbya. ^ ^^ 



bedding of hard, quartzose sandstones south of 

 Koorbya. These are overlaid in the river to the west by a thick 

 band of blue and grey, felted-looking shales,* with olive harder bands, 

 succeeded by red rugged and purple coarse and fine sandstones, con- 

 glomeratic beds and shales. Fossils are very rare in these, but a 



* The term " felted-looking" is applied to sandy shales with a very minute oblique 

 lamination, often lenticular, which produces a matted appearance in section. These beds are 

 generally very tough. 



( 197 ) 



