uo 



\\TrNNE: GEOLOGY OF KBTCH. 



[part it. 



The traps of these hills form a large central area, round which, on 

 all sides but one, the newer beds are arranged ; then- basal portion being 

 as usual unconformable to the upper Jurassic beds, but generally want- 

 ing the strcmgly marked line of escarpment which usually indicates 

 the junction of these groups. 



The flows are generally basaltic and more or less decomposed. 

 They are occasionally strongly columnar as in the Panundrow river, 

 a few miles south of the village, where the annexed sketch. Fig. 20, was 

 taken. 



Fiff. 20. Columnar basalt on Panundrow river. 



Amygdaloidal flows are comparatively scarce, and one of the upper 

 beds seen on the south-eastern hills is so ferruginous as to become 

 conspicuous even at a distance. 



On the foot-road leading from Kora to Panundrow, not far from the 

 former, some intertrappean beds occur within from 



Intertrappeau rocks. ^^ ^^ ^^^ ^^^^ ^^ ^^^ ^^^^^ ^_^^^ ^^ ^^^ ^^.^^^^_ 



They form a small pocket or irregularly lenticular band varying in 

 thickness up to 20 feet, and are composed of whitish muddy shales, 

 impure limestone and olive grit with strings of carbonate of lime. 

 ( 240 ) 



