120 FOOTE : GEOLOGY OF THE BELLAMY DISTRICT. 



away on the surface of the granite gneisses which here rise between 

 400 and 500 feet above the Golla Linganhalli valley. The last that is 

 seen of the Dharwar rocks at the extremest end of the Sandur area 

 is a small number of very irregular patches, from a few feet to a few 

 inches in thickness, and of most rugged outline, and far too small in 

 size to be shown even on a i-inch to the mile scale, and much less 

 on the 4 miles to the inch of the Atlas Sheet. They are many 

 of them preserved merely because protected by surrounding irregular 

 hummocky masses, which evidently formed part of the rugged old 

 surface on which the Dharwar system was deposited ; they had in fact 

 been deposited in depressions in the old granitic surface. 



The Devadara beds in the great spur which gives them their 

 name are of great thickness and size, but offer no special points of 

 interest, and the non-ferruginous intercalated beds are so greatly 

 hidden by haematite talus that there is nothing to say about them. 



The view from the summit of the spur is a fine one and very 

 instructive as to the relations of the western beds of the eastern side 

 of the synclinal, but does not convey a sufficiently good idea of the 

 synclinal generally to be worth illustrating. The remarkably straight 

 course of the haematitequartzites along the western side of the 

 Donimale plateau is extremely well seen, and so is the great curve 

 of the haematite beds running south-eastward from the Ubbalagandi 

 gorge to the Kumaraswami plateau. To the north the view is very 

 disappointing and much less picturesque than might be expected. 

 As seen from Sandur town the Devadara spur is a bold rocky hill 

 some 1,200 feet high above the valley and occupying a very command- 

 ing position. The ridge connecting the main hill with the eastern 

 end of the Kumaraswami plateau is 2 to 300 feet lower than the hill 

 itself, and close to the junction with the plateau is cut across deeply 

 by the junction of two ravines running up from the Mudukalpenta 

 and Nandihalli valleys respectively. A footpath that appears to be 

 considerably frequented crosses the "col." 



The haematite quartzites which showed very conspicuously along 

 The Kumaraswami the rid g e are to a g reat extent lost sI g ht of after 



P lateau * joining the plateau. Only the westernmost bed 



( 120 ) 



