LOWER TRANSITION ROCKS. 141 



something of the structure of the synclinal fold near its centre and 



in a part where it is but slightly deformed. The section runs from 



north-east to south-west in the bed of a wide ravine which cuts the 



rocks to the depth of from 300 to 400 feet : — 



11. Schists, micaceous, very coarse in texture, with red spots. 

 10. Haematite quartzite. 



9. Schists, hornblendic and chloritic. 



8. Haematite quartzite. 



7. Schists. 



6. Haematite quartzite, thin. 



5. Hornblendic schists, thin. 



4. Gritty beds, altered, micaceous matrix. 



3. Hornblendic schists. 



2. Haematite quartzites, " Iron Gate " bed. 



1. Schists, hornblendic, etc. 



In the southern side of the synclinal the section is much less dis- 

 tinct, only the haematite quartzites showing up distinctly because of 

 their superior hardness. The upper haematite quartzite in the north 

 wall of the fold is slightly inverted to the southward. 



The altered grit beds No. 4 of the " Iron Gate " section consists 

 of a silicio-micaceous matrix of rather gneissic appearance, in which 

 are imbedded innumerable grains of clear quartz. These beds form a 

 group of considerable thickness. 



Of the beds seen in this section the haematite quartzites Nos. 10 



8, 6 and 2 may, I think, be safely correlated with the iron beds Nos. 1 1 



9, 7 and 5 in the Tumati section ; the two cresting beds of the high 

 hill north of the Tumati-Bellary pass (see page 137) correspond with 

 10 of the Iron Gate section and its replica in the south wall of the 

 synclinal. The gritty beds No. 4 in this section seem to be the 

 representatives of the gritty and conglomeratic beds of the Tumati- 

 Bellary ghat section above described. 



The Iron Gate bed dies down to the southward of Haragandona 

 Country north-west anc * 1S l° st sight of, but another haematite bed 

 of Haragandona. appears to the north-west of the village in a cor- 



responding position with reference to the rest of the series, and rises 

 northward to form the scarpy western side of the double ridged hill 

 which lies north-north-west of Haragandona. The higher-lying haema- 



( 141 ) 



