ARCH^AN AND PLUTONIC ROCKS. 63 



runs rudely parallel with the Copper Mountain range, and in apparent 

 conformity with the synclinal formed by the Dharwars. One of 

 the best outcrops of this gneiss band is to be seen in the small 

 HaMakundi hill, which consists of banded hornblendic gneiss of grey 

 colour with a south south-west dip, and showing much crumpling in 

 parts, beside being much cut up by numerous small greyish white 

 granite veins running in different directions. 



Six miles east south-east of H31akundi similar hornblendic banded 

 gneiss crops out between Ibrahimpur (Ebrampoor) and Yettan Budi- 

 hal. Further south, close to the extreme south-east point of the 

 Dharwar rock area, is a show of pale grey compact micaceous gneiss. 



To the south of the Mincheri hills, (the east end of the Copper 

 Mountain range), the gneissic band is very doubtfully represented, the 

 rocks being more granitoid in character. 



A singular inlier of micaceous gneiss, grey in colour and highly 

 Gneiss inlier in the crystalline in texture, appears standing up 

 Dharwars. among the hornblendic schists south of Chennur 



royankote, The mass, which has been exposed by the denudation of 

 the Dharwars, is about 300 yards in length by 100 in width, and shows 

 a dip of 50 to 6o° (estimated) to E. io° N. 



Belonging to the gneissic band is a show of pink felsitic gneiss 

 noted as occurring south of the bridge which crosses the big nullah 

 which drains the eastern slope of Suggalamma Konda (Sugade- 

 vibetta) — anglice, the Copper Mountain. 



In the spur which descends north-eastward from the Copper 



Mountain the banded gneiss becomes locally very 

 Green gneiss. 



granitoid, but in other parts the gneissic charac- 

 ter prevails. In one place on the northern slope of a branch spur, the 

 gneiss is stained a very pretty green by the presence of a small 

 quantity of carbonate of copper. This staining affects only a narrow 

 band which lies in the general strike of the rock to the northward 

 of the great trap dykes which cut across the spur. 



6. The Alur Sub-division. — This sub-division, which nearly coin- 

 cides in shape with the Alur taluq, is bounded on the west by the 



( 63 > 



