DESCRIPTIVE GEOLOGY: NUMMULITIC ZONE. 183 



ing series through Trias, Jura-Cretaceous and Grey limestone. This 

 is alike true in the section along the steep ridge north of Kalabagh 

 and also in the deep "khuds" on either side of this ridge. The 

 view looking west-south-west from Kalabagh (PI. 5) will give some 

 idea of the unswerving and important nature of this line of frac- 

 ture and overthrust. Incidentally we may note in that sketch the 

 barren hill-sides on the scarped southern face of Taumi and the Biar- 

 covered northern slopes of the Nummulitic limestone. Both aspect, 

 and the different nature of the soil due to the rocks beneath, seem to 

 have been efficacious in marking this difference. A similar contrast 

 is observed on each side of the fault as it passes east by the Bukot 

 gulee and along the Bukot stream. 



Although the line of country indicated in the margin does not 

 cut directly across the strike of the rocks but 



Section along the ,. . . .. .. ... . . , 



road from Kalabagh diagonal to it, it will be convenient to describe 

 °" oon 2 a u ee# the section on account of its accessibility and 



the exposures afforded by the road-cuttings. The great over- 

 thrust to the north of the zone passes J mile or less north of Kala- 

 bagh through a sharp gap in the ridge where the road for a moment 

 gives a view down into the Kula N. The Nummulitics which then 

 set in consist of limestone and grey splintery shales of the ordinary 

 kind, but no good exposures are seen until Kalabagh is reached. 

 The strike there is east-north-east — west-south-west and the dip 

 north-north-west at very high angles in massive limestone. In some 

 local sections the strike is east and west and the dip accordingly. 

 A little south-east of Kalabagh the quantity of limestone relatively 

 to the shale becomes less, and in the direction of Nathia Gulee (which 

 is due north of Milach) shales become still more prominent, inter- 

 bedded with concretionary limestone, and very much split and cross- 

 jointed. Among the shales numerous small foraminifera y ostreas and 

 corals may be noticed, but they are minute and extremely ill pre- 

 served. The strike continues the same and the dip is approximately 

 vertical. Owing to the preponderance of shales at Nathia Gulee the 

 hill-sides are more flowing and the necessary sites for houses have 



( >«3 ) 



