FOOTE: GEOLOGY OF THE BELLARY DISTRICT. 



that was not in an advanced state of decomposition. In its weathered 

 condition the gneiss is a quartzo-felspathic, whitish, flakey mass. 

 Here and there are somewhat hornblendic bands in the gneiss, which 

 show a much less advanced stage of weathering. The gneiss rolls 

 about freely. 



To the westward of the gneiss rise the granitoid hills of Utingi 



Granitic hills west of (Hootengy) and Tullakal, and to the south the 

 the gneiss tract. Kankappa gudda near Nandi Bevur (Nundy 



Bayoor), which is afelspathic, micaceous, granite gneiss, in which the 

 lamination of the rock, as seen in a small quarry on its western side, 

 is rippled in a very beautiful manner. 



To the north of Utingi hill the Hollagundi hill, of grey hornblendic, 



Rocks in the north- granite gneiss, forms the most conspicuous object 

 western corner. f or m any miles around. The beds forming it 



sweep round in a semi-circle to the north-west and form Timappan 

 gudda, another conspicuous hill three miles off. The northerly ex- 

 tension of the Timappan gudda beds forms a low jungle-covered ridge, 

 which stretches away nearly up to the Tungabhadra. 



This gneissic band does not extend quite as far west as the bank 



of the Tungabhadra. Granitoid rocks begin to 

 Tremolite gneiss. ^^ ^^ ^^ ^^ & ^ east of ^ ^^ 



A little distance east of the boundary near the Coarlagutta tank 

 occurs abed of an uncommon form of gneiss, in which the ordinary 

 black hornblende is replaced by the white variety or tremolite ; the 

 only occurrence of this mineral in South India that I am personally 

 acquainted with. With the tremolitic bands are intercalated bands of 

 ordinary hornblendic gneiss. The outcrop of the tremolite gneiss is 

 of very limited extent as far as seen. 



Between Hollagundi and Moragerry, six miles to the east, several 

 outcrops of gneiss are crossed by the path— extensions apparently 

 of the gneiss seen in the Itugi (Hittigay) nulla. To the north-east 

 of Moragerry the cotton soil gives place to reddish sands, full of the 

 debris of pegmatite veins. Outcrops of the granite gneiss underlying 

 are few and far between. 



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