194 WYNNE: GEOLOGY 01' KTJTCH. [p ART II. 



and shaleSj dipping at a low angle to the west, and forming that side 

 of a little valley in the bottom of which thick black shales again 

 appear. From beneath these some strong light-colored sandstones 

 crop outj and another mass of hard basaltic trap from 200 to 300 feet in 

 width runs along the strike of the beds as if intruded between them. 

 Coming out as it were from beneath this trap and sandstone band is a 

 strong zone of hard, white and grey, quartzose sandstone, with largely 

 conchoidal fracture, pieces of which ring when struck by the hammer. 

 It is from 300 to 400 feet thick, and rising on the hillside forms the 

 crest of the range for some distance, dipping to the south by west. 

 Blocks of it, varying in size from ordinary boulders up to the dimen- 

 sions of small houses, lie scattered about its escarpment, broken oflF the 

 outcrop by the disintegration of some thick shales upon which it rests. 

 In these black, blue, and grey shales, another strong, but much thinner, 

 band of basaltic trap, softer at its upper and under sides, dips westward 

 with the shales, which here form the breast of a steep scarp along the 

 eastern side of the hills. Besides the intrusions noticed, some smaller 

 dykes were observed and doubtless there are many more. The thickness 

 of this portion of the lower beds, from the escarpment westwards to 

 Koorbya, including the traps, may amount to 1,500 feet. They appeared 

 to be all but unfossiliferous. 



Following the beds of this range northwards to the great Charwar 

 and Katrol fault, they are found to become vertical in places close to it ; 

 forming high hilly ground along its south side for some distance. The 

 traps abovementioned are not traceable in the plain north of the fault 

 where the coarse, red and white upper Jura beds are nearly horizontal 

 or dip gently towards the hills. 



South of Drabwa Hill a thick mass of greenish-olive weathered 

 , „ ^ , trap, associated with muddy, ashy-lookine» shales. 



Trap, south of Drabwa J ' J t^ 3 



^^- forms some hilly ground extending towards the 



( 194 ) 



