IJO FOOTE: GEOLOGY OF THE BELLARY DISTRICT. 



me in the Sandur hills. Traces of copper, lead, and antimony are re- 

 ported to have been found in the State, but none were seen by me, 

 and the localities where they occurred not being given in the Bellary 

 District Manual, I could make no special search for them. 



A little further down the path runs across argillite weathered to 

 a dirty brown colour, in which occur many 



Crystalline limestone. , . . 



strings or calcite which when freshly fractured, 



show greenish, reddish, and white tints. Close to a little jutting knoll 

 may be seen a bed of compact grey crystalline limestone running in 

 the strike of the argillites. It has a thickness of from two to three 

 feet. Just beyond where the path gets on the flat at foot of the hills 

 a little ridge rises to the left. This consists of a whitey-grey quartzite 

 having a dip of 50 E. N. E. 



The overhanging scarp of the great haematite quartzites (of the 

 Raman Drug series) to the south-east of Kan- 

 nevihalli shows some large cavernous recesses. 

 Newbold, in his account of the geology of Sandur, mentions some 

 caves as occurring under the lateritoid rock on the Kumaraswami 

 plateau. I did not come across them, and my guide knew nothing of 

 them ; so, as Newbold mentioned their not having statagmite flours, 

 I did not spend any time in hunting for them. 



Underlying the Tonashagiri haematite series is a schist series which 

 in its turn rests upon a great thickness of contemporaneous trap which, 

 in the Tonashagiri corner, forms the base of the Dharwar system. 

 Further west this trap is underlaid by a considerable series of schists of 

 various kind, which may be fairly well seen in a section to the north- 

 ward of Saniasihalli. The section here shows the following succes- 

 sion underlying the fine horse-shoe cliff over 

 Saniasihalli section. . 



which the stream, coming down from the 



Subrayanahalli plateau (the western end of the Kumaraswami plateau), 

 makes a fine fall in the rainy season. The water-fall cliff appeared to 

 me to represent the lower of the two great Tonashagiri haematites : — 



7. Haematite-quartzite, " Horse-shoe cliff." 



6. Dark-green schists. 



5. Greyish black flaggy beds. 



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