SEC. 7.] 



THE CHAKWAR AND KATROL RANGE. 



177 



Dyke. 



Close uuder this escarpmeiitj near the villages of Seedoongra and 

 Nangulpur, there is a long irregular line of fissure, 

 occupied partly by a large trap dyke and partly 

 by a reef of the usual silicious compact stone resemblinrr " fault rock." 



The country west of the outlier abovementioned becomes hilly, 

 a sharp anticlinal ridge curving from east and 



Anticlinal east of Eatrol. t n t ■ ■ i 



west to east-south-east. The rocks oi this ridge 

 and its neighbourhood are of the ferruginous black, red, purple and 

 yellow, coarse and finer sandstones, with flaggy beds belonging to the 

 local upper Jurassic group. 



The steepness of the angles of the dip, their vaiying directions and 

 the occurrence of ramps beneath the northern slopes of this ridge, lead 

 to the conclusion that the great fault to the westward contiuues through 

 this disturbed ground. 



South of the ridge the rocks become contorted, dipping in various 

 directions, generally away from a remarkable 



Suit Tullao. 



circular valley called the Surr Tullao, about 2| 

 miles broad ; the narrow outlet of which to the east having been 

 dammed up, the whole of the basin becomes flooded by the rains. 



Pig. 14.— Sketch sections, soutli from Soogalia, eastward from tlie Suit Tullao ; and from Rutnal, across 

 the Suit Tullao. 



( 177 ) 



