KALADGI SERIES. 117 



anticlinal is lost sight of about two miles east-by-south of Heerah 

 Sillikeri. 



Southward of the village of Chik (or little) Sillikeri^ and on the 



southern side of the anticlinal axis, some very 

 Sillikeri slaty rock. i i • 



argillaceous beds make their appearance among 



the limestones. Two of these are specially noteworthy, because highly 

 prized for economic purposes ; the first is a bed of coarse black clay rock of 

 rather gritty texture and exceedingly tough, quarried for rude flags, which 

 are formed by rude, imperfect cleavage joints running nearly at right 

 angles to the bedding. The second is a bed of very tough and strong grey, 

 slaty, calcareous (?) shale, formerly largely quarried for roofing slates for 

 the public buildings at Belgaum. The rock here shows no signs of true 

 cleavage, but in a similar bed, if not the actual extension of the same, 

 which shows about a mile east-south-east of Hire (Heerah, great) Sil- 

 likeri, the true cleavage as contrasted to bedding may be very well studied. 

 The cleavage is strong, and dips 65° to 70° east, while the bedding forms 

 a low flat anticlinal whose axis is east-south-east-^west-north-west. 



To the south of Sillikeri near Yendikeri, the grey beds above described 

 Yendikeri silicious re-appear from under the Khaleskop quartzite hill 

 limestone. ^^^ ^ northerly dip of from 45° to 65°. 



A mile south of Yendikeri the beds again roll over south, and the 

 lower beds are well repeated. They are dark colored and extremely 

 silicious, besides being full of cherty bands. 



Some of these cherty bands have a distinctly oolitic structure, which 

 Oolitic structure in ^^ some cases shows out quite distinctly on wea- 

 thered surfaces. Some others show a texture 

 quite indistinguishable from a true quartzite. The southern part of 

 the section is obscure, but the limestones and overlying calcareous shale 

 dip southward against the faulted boundary of the limestone basin to 

 the west of Aniwal (Annehwhal) . 



( 117 ) 



