198 FOOTE : SOUTH MAHRATTA COUNTRY. 



which remains to he solved by future observers. Their position fre- 

 quently suggested such an origin for them, but sections showing their 

 relation and real nature are so rare that no satisfactory conclusigns were 

 arrived at. Some of these were the iron-clay beds, alternating with 

 trap-flows, on the south side of the great Jamboti ridge seen on the 

 path leading from Chikli (Cheekhleh) to Amoteh.* 



The only instances of intertrappean limestone met with were two 

 Oolitic calcareous beds small exposures of flaggy limestones, oolitic in 

 near Nelserri bungalow. structure, light brown or whitish in color, occupy- 

 ing depressions in the surface of the trap, — one in the hollow at the foot 

 of a hill a little off" the high-road south-west of Nelserri Travellers' 

 Bungalow, the first stage between Belgaum and Kaladgi ; the second 

 exposure occurs at Ghone, a village six miles east of Nelserri. No signs 

 of organic remains were seen in either case on cursory examination, 

 and both exposures are much obscured by the surrounding cotton soil. 



Amongst the intertrappean beds we may well include cherty beds, 



which are so common in the corresponding form- 

 Shellugi chert bed. . . , t t i i i • ,- n .t 



ations m Central India and characteristic oi them. 



Only one bed of chert was met with throughout the region now under 



consideration ; this occurs about seven miles north-east of Talikot, and 



one mile west of the village of Shellugi, and occupies the highest ground 



in the neighbourhood, stretching about three miles north and south, with 



a maximum width east and west of about a mile or a trifle over. 



The chert bed forms a small plateau of irregular outline, in great part 



thickly covered up with cotton soil. This bed is best seen at its southern 



end, where a huge nim or margosa tree forms a landrnark, conspicuous 



for many miles around. The bed, as here seen, seems only about one 



* There are other iron-clay deposits occuiTing here and there over the trap area which 

 are very likely merely results of subaerial atmospheric action, and which will be described 

 when treating of subaerial deposits. From their position they might, however, be regarded 

 as intertrappean relics analogous to the quartzite gravels above described. 



( 198 ) 



