56 FOOTE : 'GEOLOGY OF THE BELLARY DISTCT. 



weathered faces. The rock weathers to a dull pale brownish pink. 

 There are no signs of any foliation, but the rock forms a distinct and 

 well marked band, which can be followed several miles to the north- 

 west. Although not foliated on the north hill, the rock of the same 

 band is well foliated in other places, e.g ., on the hill north of the jail, 

 where it shows in places a strike of W.N.W. 5 N., the dip being 

 southerly at a high angle. Here, too, the third component mineral 

 is seen to be hornblende. The orthoclase crystals have their axes 

 often across the hornblendic laminae, or the spaces between them. 

 The hornblendic laminae are from J to 1 inch apart. The rock in- 

 cludes dark hornblendic masses here and there. 



The granite is much cut up by joints, and near the western end 



of the north hill I noted ten several import- 

 Systems of jointing. 



ant joint systems 1 ; but the general mass of the 



rock is mainly affected by three systems, one nearly in the line of 



strike, a second as nearly as possible at right angles to it, and a third 



very important one, which is nearly horizontal and being very strongly 



developed in most places, gives a very mural appearance to the hill 



side where it prevails. Where the horizontal joints are far apart 



the great blocks formed have a tower-like appearance. 



The north hill is very often also called Face hill, because a group 



of blocks on the highest crest presents from a south-easterly point 



of view a remarkable likeness to the profile of a human face, the owner 



of which is on his back asleep. To my eye the profile bears a 



1 They were the following, giving them in the order of observation. Where the 

 angle of dip is not given it was not measurable :— 



1. E. 5 N. 



— W. 5 S. 



dip Southerly. 



2. S. W. by S. 



— N. E. by N. 



„ Vertical. 



3. N. 30 W. 



- S. 30 E. 



„ Easterly. 



4. N. 15 W. 



— S. 15 E. 



„ Westerly. 



5. W. S. W. 



— E. N. E. 



„ Vertical to 8o° S.S.E, 



6. N. W. by W. 



— S. E. by-8°-io° E. „ ? ) 



8°-io° 







7. N. E. 2 N. 



— S. W. 2 s. 



„ Vertical. 



8. S. E. 



— N. W. 



„ North Easterly. 



9. N. E. i5°E. 



— S. W. 15 W. 



„ Vertical. 



10. The basal joint rolling about locally but approximately horizontal, 



( 56 ) 



