LOWER TRANSITION ROCKS. $t 



in working out the sequence of formations. The Karrabagaddi sec- 

 tion is the best, but is only about a quarter of a 

 mile long, and shows nothing but the two lower 

 haematite beds of the Karrabagaddi set and some overlying thick beds 

 of , green, brown and drab clay schist. The two haematite beds, in 

 descending from the end of the ridge where it abuts on the river, stand 

 out like two buttresses, along which are perched some small bastions, 

 and a short cross wall at the top. The place is picturesque, but could 

 not have been of any military strength since the use of gunpowder, 

 as it is completely open to attacks by artillery across the narrow 

 river. 



The haematites, forming the crest of the ridge further to the 

 north-east, are to some extent jaspideous, and so are those in the 

 great spur north-east of Kunchur. This character is uncommon in the 

 haematitic-quartzites of the Kunchur tract. In both places the bedding 

 has undergone considerable contortion on a moderate scale. 



The Karrabagaddi haematites hardly show through the alluvial spit 

 lying opposite to the old fort, but they show strongly on the north side 

 of the next reach of the river and form a small group of hills, but are 

 lost to sight again before they can cross the Manganayakanhalli reach 

 of the river. 



The haematitic beds which form the low hills north and south-east 

 of Manganayakanhalli appear to represent the northernmost and up- 

 permost of the great beds belonging to the Karrabagaddi set. 



Overlying these last haematites are an extensive series of brown 



and greenish-brown argillites, which in places are 

 Schists around Hollal. , r 



quite soft and shaley-looking from weather action. 



One of the few places in which they are exposed in fairly unweathered 

 condition is in the bed of the Kallaspur (Cullaspoor) nullah, a few 

 yards from the uppermost haematite exposed in the hilly ridge, which 

 here forms the continuation of the Karrabagaddi band. The clay 

 schist, which is inclined at a high angle to the west, is of a very pleas- 

 ing greenish-grey colour. 



To the west of Hollal are drab (pale brown) argillites, which show 

 F ( 81 ) 



