188 FOOTE: SOUTH MAHRATTA COUNTRY. 



hig-hly vesicular and amygdaloid trap full o£ kernels o£ scoleeite (often 

 coated with green-earth), minute particles of which glisten all over the 

 surface in this part of the town. These flows of vesicular trap, weather- 

 ing into a clayey substance; show strongly in the wider valleys north- 

 east and east-north-east of Gulbarga ; while the higher plateau in 

 this direction are of massive dolerites which often exhibit rudely 

 spheroidal weathering. 



" The following section was observed on the Durga hill, north-east 

 of Kaulagi, and some twenty miles east of Gulbarga. It includes about 

 150 feet of the lower trap-flows. The bottom beds are dark, greenish- 

 brown, nearly black, compact trap, showing in the low ground up to the 

 base of the hill about 30 or 40 feet. Then a greyer colored and much 

 weathered variety seamed with laminar and nodular masses of brown 

 and yellow common opal (? chert) and white and semi- translucent chalce- 

 dony in various forms. The rest of the hill upwards is coarse, massive 

 dolerite, weathering into a coarse greyish-green somewhat clayey rock 

 with very little chalcedony. 



" Further north-east, yet more elevated plateau show the sum- 

 mit of the Durga hill to be continuous with them, and to be overlaid 

 with other amygdaloid flows and still higher-lying flows of massive 

 trap. 



" The scarped and terraced character of the country so conspicuous 

 in parts of the Deccan is very well displayed. 



Scarps and terraces. 



though on a small scale, all over this part of the 



country; the thickness of the trap formation being from 100 to 300 

 feet between Kaulagi and Bidar. There was not sufiicient oppor- 

 tunity for observing whether the harder flows of trap forming the terraces 

 of the difierent plateau-like hills are constant over any great distance. 



" In the neighbourhood of Gulbarga there are five hard flows, 

 the higher parts of the town being situated on the second of these, 

 ( 188 ) 



