TERTIARY AND RECENT DEPOSITS. 2.35 



united stream first enters a gorge in the quartzite which extends down 

 to Gokak^ a gorge which has already been described (page 87) as 

 affording beautiful and interesting sections of the lowest division of the 

 Kaladgi series. The lower part of this alluvial basin is completely 

 covered by thick regur, but in the upper parts between Ankalgi ( Un- 

 kulgee ) and Hudli ( Hoodlee ) there is a great development of pale- 

 reddish and yellowish sandy loam with much kunkur infiltration, strongly 

 resembling typical " loess," which forms steep cliff-like banks 25 to 3U 

 feet in height. 



The fourth alluvial basin commences immediately below the town 



of Gokak and, as shown in the map, extends 

 Gokak basin. 



almost to Tegedi (Tegree) nearly 11 miles to the 



north-east. This alluvium apparently joins another interesting allu- 

 vial deposit which fills the valley of the Kelvi nullah, a tributary which 

 joins the Ghatprabha from the south. The whole of the lower part of the 

 basin is obscured by a thick covering of regur through which only 

 one section penetrates. The junction of the Gokak basin with the 

 alluvium of the Kelvi nullah is only inferential, the intervening space 

 being completely masked by cotton-soil, but there can be little or 

 no doubt that they do join, and may^ therefore, be regarded as one basin 

 of pluvio-lacustrine origin. The ossiferous beds under the regur, 

 which are exposed only in the Chikdauli nullah section, are dark- 

 coloured clays with gritty clayey sands, and contain the mammalian 



bones and fresh-water shells which were des- 

 Kelvi nullah, basin. 



cribed above (page 332). The alluvial deposits 

 of the Kelvi nullah valley"^ are gravels and coarse loam ; the latter 

 resembling that of the Belgaum nullah at Hudli described above. These 



* The course of this nullah is laid down quite wrongly in the map (41). It does not 

 trend north near the village of Banichmardi (Buneechmurdee), but continues its course 

 north-east till it joins the Mamdapur nullah at Maldinni. The course of the Betgiri 

 nullah to the east is similarly laid down wrong, as it falls into the Krishna west of 

 the Ud-gatti (Oodguttee) gneiss inlier, and not, as shown on the map, close to Tegedi. 



( 235 ) 



