152 FOOTE : GEOLOGY OF THE BELLARY DISTRICT. 



containing many segregations and strings of quartz, which is frequently 

 stained green by the presence of pistacite. The run of the rock seems 

 to be north and south, or perhaps 5 of north, but there is no recog- 

 nisable foliation and no regular system of jointing. A similar rock, 

 apparently an extension of this Bevinhalli (Bavinhully) trappoid 

 appears on the south side of the railway close to the old high road 

 a little south-west of the village. To the south-east and west the 

 trappoid is speedily hidden by cotton soil, and how far it may extend 

 in these directions it is not easy to determine. 



A little beyond (north-east), the second milestone from Bellary on 

 the Karnul high road, a small exposure of hornblendic trappoid is to 

 be seen protruding over the cotton soil. It is probably a small outlier 

 of the Penne'r-Haggari-Dharwar band. Many very small granite 

 veins have been intruded into the trappoid and intersect each other 

 freely. 



The Dharwar rocks make no show in the alluvial valley and bed of 



the Haggari river. They probably consist of soft- 

 Exposures east of the m && J r / 



Haggari near Lingada- ish beds which have been too deeply eroded by 

 the river in former times to protrude above the 

 recent alluvium and the line of blown sand-hills which skirts the right 

 bank of the river. Very little is seen of them away to the eastward of 

 the river bank, from the same cause presumably. It is only along the 

 south edge of ,the band to the east of Lingadaviranhalli that there 

 is a noteworthy show of hornblendic and chloritic schists with un- 

 important beds of poor haematite quartzite. The schists show chiefly 

 along the right bank of the large nullah which falls into the Tun- 

 gabhadra half a mile north of the village. 



Chloritic schists show at intervals from Lingadaviranhalli eastward 

 all over the southern half of the band, but of the northern half very 

 little is to be seen because of the great spreads of cotton soil which 

 conceal the face of the country almost completely. It is almost only 

 along the northern edge of the northern half of the band that outcrops 

 of rocks are to be seen. The most conspicuous of these are a ferru- 

 ginous band with its associated over and underlying schists, which form 

 ( 152 ) 



