28 FOOTE : SOUTH MAHllATTA COUNTRY. 



either the oldest granite was still undenuded at the time these con- 

 glomerates were forming, or else that excessive attrition of the other 

 rocks destroyed everything but their very, hardest constituent parts. 

 The latter view is partly correct^ but goes too far, for many of the 

 conglomerates are largely made up of pink felspar derived directly from 

 the granitoid rocks. 



He recognises the fact that the trap dykes in the South Mahratta 

 Country belong to two ages, the one prior to the deposition of the 

 " sandstone," the second posterior to the sandstones and limestones 

 (Kaladgi series), but anterior to the Deccan Trap period. Nor did the 

 great mineralogical differences between these basaltic greenstones (diorites) 

 and the basalts and amygdaloids of the Deccan Trap series, which he 

 regarded as of tertiary age, escape his observation. 



He gives the following tabular statement of the succession of 

 formations in descending order in the South Mahratta Country :— 



Eegur 



Old kunker ... ... .... 



Laterite 



Lateritic sandstone 



Overlying trap 



Basaltic greenstone 

 Granite 

 Sandstone ... 



Basaltic greenstone 



Granite ... ... ... .../- 3rd group. 



Hypogene schists 



The first group he regarded as tertiary; the evidence in case of the 

 second he inclined to consider as pointing to its being of carboniferous 

 or Devonian age ; and the third as Silurian or Cumbrian, if the Devonian 

 age of the second group be established. 



Captain G. Wingate, Bombay Engineers, published an interesting 



series of " Remarks on the Laterite of the South- 

 Captain Wingate, 



1852. ern Konkan and Southern Mahratta Country " in 



{ 2^ ) 



