•30 POOTE : SOUTH .MAIIILVTTA COUNTllY- 



The most serious error he fell into was the asriuiuptiuu that the 

 Deecan Trap underlaid the sandstones, as shewn in Figs. 1 and 9 of his 

 plate of sections and elsewhere in his descriptions ; and he credits the 

 trap with having caused many of the changes in the overlying rocks. 



His first and third and part of the second sandstone ranges, as 

 shiewn in his three fiirst sections, are really parts of the continuous chain 

 o£ .hills formed by the lower Kaladgi quartzites. The second range 

 in his section 1 is really formed by the upper quartzites ; in section 3 

 he represents the beds as dipping south instead of north, and reposing 

 uncouformably on the gneissic rocks. In section 1 he represented the 

 second sandstone range ' f ^ as having a distinct southerly dip, whereas 

 really the beds are vertical or dip north at a very high angle, and form a 

 synclinal fold with ' d ' (the Arrakeri ridge), called a sandstone 

 undulation. In section 9 the southerly dip of ' e ^ (equivalent of ' i') 

 is really southerly, because of an inversion of the beds. The outcrop of 

 the upper Kaladgi quartzites south of Bagalkot, and forming the 

 northern side of the Shimakeri synclinal ellipse, he calls the fourth 

 sandstone range. 



After describing the conglomerates and breccia beds north of 

 Bagalkot, and the limestones between that place and the " fourth 

 sandstone range,^^ he proceeds to give a full account of a remarkable 

 occurrence of calcspar (in nests) in the limestones at Gaddankeri 

 (Guddunkeeree) on the Kaladgi road, 5 miles south-west-by-west 

 of Bagalkot. Lieutenant Aytoun considered the calcspar to occur as a 

 dyke, the linear extension of which he was unable to trace because of 

 thick overlying soil. 



From here he travels westwai'd, passing over a tract covered with 

 laterite, the iron in which he supposes to have been derived from the 

 underlying sandstones and blue schists (purple shales) into which it 

 was infused by the plutonic agency which elevated this region. His 

 sections of this part are merely vague outlines, shewing nothing of the 

 stratigraphical position of the various formations. 



( '^U ) 



