44 KING : NELL0R1 PORTION OF TTIK CARNATIC. 



The southern extremity of the main area of the Cuddapahs, in the 



, c n a Veliffondas. is distinctly faulted, the intensity of 

 Southern end ot Cud- » > * ^ 



dapah Hold faulted. ^] ie displacement having increased eastwards from 



Kirkamhadi, while the upthrow to the south is shown in the Kalahasti 

 hills Batanaik Konda and Kambak Droog in the present area, and Naggery 

 Nose Nagwaram hill and others in the Madras area, most of which have 

 scarped cappings of bottom quartzites looking to the south, at elevations 

 of over 1,000 feet. The true direction of this Kirkambadi line or lines 

 of disturbance could not, however, be ascertained ; all that could be 

 determined being that the throw ranged more or less east and west, if 

 anything rather to the north of east, that is, very much in line with 

 the northern end of the Kalahasti ridge and the course of the 

 river. Hence it is possible that minor disturbances in the same direc- 

 tion, with others along the strike of the strata, combined with the extra- 

 ordinary outburst of igneous rocks, were instrumental in bringing about 

 the untoward position of these outliers and the highly altered condition 

 of their rocks. 



Following these Kandra ridges of trap and hornblendic rocks by 

 G lacanad-Kaiuvaya Potagunta, a broken line of quartzite outcrops leads 

 area. on to the Gelacapad-Kaluvaya area, which differs 



from that of Kandra in the associated igneous rocks, being dykes and 

 interbedded intrusions instead of generally indefinable masses. Quartzites 

 are still prevalent, but there are now some clay-slates, and the whole are 

 much more highly altered, often to such an extent that they are hardly 

 distinguishable from beds of the schistose gneiss. 



The Gelacapad portion of the area is an irregular group of quartzite 

 hills in three arms stretching from the village, west to Bodanapali, south- 

 east to Raspolliam, and northward past Tumoy. Smaller ridges rise up on 

 either side among schistose gneisses, but the bay to the south between 

 Raspolliam and Bodanapali is of trappoid rocks, apparently bedded north- 

 by-west with an eastward dip, among past) 7 -looking syenitoid gneiss. 



It was utterly impossible in such a jungle-covered country as this is 

 to make out clearly how the quartzites are lying with regard to the 

 ( 152 ) 



