4S FOOTE : GEOLOGY OF THE BELLARY DISTRICT. 



The rocks seen in the valley of the Penner are hornblendic semi- 

 Rooks in the Penner granitoid gneiss, much banded and much cut up 

 by numerous trap-dykes, many of them of large 

 size. Many fine examples of river action in wearing and polishing 

 the rocks are to be seen in the bed of the river ; but the fall in this 

 part was not great enough to lead to the formation of potholes on a 

 large scale. 



If we turn now north-west across the great Haggari cotton soil 

 Ouartzose ^neiss north plain, we meet with one of the small inliers above 

 of Honur. referred to, a small hill with a single tree on the 



top and a very conspicuous object on the plain for miles around. The 

 hill consists of quartzose gneiss, with associated hornblendic gneisses. 

 It mio-ht easily be mistaken for an outlier of Dharwar rocks but for 

 the associated gneisses, for it lies in what would be the normal line of 

 extension south-eastward of the Copper Mountain band. This boss 

 of gneiss is not shown in sheet 59. 



Five miles to the westward rises another inlier, the flat dome- 

 shaped granitoid mass known as the Bandur 

 Bandur gudda dome gudda (Bundoor G ooda), a Trigonometrical 



station 1,659 feet above sea-level. 



Two small exposures of hornblendic gneiss within the great black 

 soil plain were noted, the one on the road between Malyam and 

 Honur, a little nearer to the latter place than the half way; the second 

 exposure was on the high ground on the left bank of the Haggari, 

 three miles west-south-west of Honur. Lastly, two bosses of granitoid 

 occur in the north-west corner of Raya Drug taluq, close to the new 

 Bellary-Raya Drug highroad, the one 15, the other 17, miles north of 

 Raya Drug: both are Trigonometrical stations, according to the. one- 

 inch Madras Survey map, and have the heights 

 of 1,837 feet and 1,828 feet assigned to them re- 

 spectively. 1 The northern of these two bosses, Hoss gudda by name, 



1 On the northern of these two bosses, I found a fairly fresh and well preserved 

 scale of an Indian manis (Manis pentadactyla). I showed it to the people there, but they 

 disclaimed all knowledge of such an animal and denied its existence. 



( 48 ) 



