GNEISSIC ROCKS. 39 



strike ranges mostly from north-by-west to north-north -west, and south- 

 by-east to south-south-east. This strike prevails as far west as the line 

 of hills running- south from Jalihal to Maski (Mooski), and passing 

 down into the great cotton-soil plain west of Sindanur. To the west of 

 this area near Ling Sugur is a belt of schistose rocks striking north- 

 by-east; followed by an area of some three to four hundred square miles 

 in extent along the Krishna, and northward to the edge of the overlying 

 younger rocks near Muddebihal, throughout which the strike is most 

 frequently east to west, or varies but a little north or south of that, as 

 the case may be. South of this area is a very considerable district over 

 which the strike is markedly north-west and south-east. 



This south-east strike extends southward beyond the area surveyed. 

 To the east it extends to within a few miles of the north-north-west 

 strike prevailing over the eastern part of the gneiss region. To the west 

 it extends as far as the great band of granitoid gneiss, which stretches 

 from the Tungabhadra past Kanagiri and Tawurgiri to the south-eastern 

 corner of the basin occupied by the Kaladgi rocks. This granitic band 

 has itself a north-west and south-east strike. 



West of this great band very little of the gneissic rocks can be 

 seen in the Dharwar plain ; but where schistose or other well-bedJed 

 gneissic rocks show at the surface, as at Nargund and Chik Nargund, the 

 strike is almost invariably north-north-west varying to north-west-by- 

 north. This strike of the bedding is also seen to prevail much further . 

 to the north in the Halki, Wannur, Mamdapur and Gokak inliers 

 before enumerated. The beds shown in these inliers are northerly 

 extensions of those occurring at and to the east of Bailhongal (Byl 

 Hongul) in the Upper Malpiabha valley. Among them are several 

 conspicuous haematite-schist beds which, with others parallel to them, 

 extend with a change of strike to south-eastward to Kittur and Dharwar. 

 A similar change of strike appears also in cases of the southerly extension 

 of the Nargund beds, which re-appear in the Dambal hills near Gadag 

 (Gudduck). 



( 39 ) 



