74 FOOTE : SOUTH MAHEATTA COUNTRY. 



belonging to section I ; but occasionally beds of shale or shaley flags are 

 met with, and in one place several beds of haematite-schists are intercalated 

 among the quartzites. The members of this sub-section occupy the 

 whole of the western part of the Kaladgi basin and the greater part of 

 the southern area, while on the eastern and northern sides of the basin they 

 form a broad border round the central part of the basin occupied by the 

 overlying limestones and shales. This border is continuous except where 

 overlying trap-flows conceal it. All the outliers east, south, and west 

 of the basin, and all the large and important ones north of the basin, 

 were once part of the basement section of the series. 



As might be expected of a rock series extending over so large an 

 area and formed of materials derived from an older series, the members 

 of which are so diverse in character, there is a great deal of local diversity 

 of texture and color, the relative characters of the more important sub- 

 divisions are to a great extent constant, and the gradual decrease in 

 coarseness of texture from below upwards holds good almost everywhere. 



Resting upon the basement beds are found, in eastern and southern 

 parts of the basin, beds of intensely silicious limestone, which in many 

 places pass (or at least appear to pass) into very characteristic hornstone 

 or chert breccias. Resting upon these come, in most parts of the basin, 

 the clays, shales, and limestones grouped together in sub-section No. 4. 

 Locally, however, in the southern and the western parts of the basin, an 

 important group of sandstones and shales appears to be intercalated 

 between the breccia beds and the base of sub-section 4. Unfortunately 

 the great imperfectness of the local sections, and the intervening of a 

 broad band of the Deccan trap, combine to make the relations of all these 

 , beds extremely obscure and rather doubtful. 



The rocks forming this section as a rule lie rather upturned, the 

 outer boundary scarps forming a true basement edge. 



Basement beds almost g^^^^ jg ^j^g ^^^^ vound the greater part of the 

 upturned. 



Kaladgi basin. Within the area of the basin they 

 are usually undulated, but are in some places met with lying horizontally 

 and in others have been considerably disturbed and crumpled. 

 ( 74 ) 



