Chap. XXXVTII. ] 
SANDUR STATE. 
995 
during 1905 and 1906 were as follows :- 
1905. 
190G. 
1907. 
Long tons. 
Long tons. 
Long tons. 
Ramandrug ...... 
1,200 
447 
15,455 
Kanncvihalli . ..... 
nil 
2,762 
7,595 
In September 1907 I was able to pay a very brief visit to these hills and 
cursorily examine a few of the chief deposits, Mr. R. 0. Ahlers, then 
mines manager, showing me the Ramandrug deposits, and Mr. Ghose 
those of Kamataru. 
Geologically. theSandur Hills and Copper Mountain area consists of 
two great synclinal folds running from N. W. 
Geology: ^ g joined together at their centres. 
root€ s account. > j o 
The rocks belong to the Dharwar system, and, 
according to Foote', to whom we are indebited for a full account of the 
geology of the Bellary district, consist of alternating schists and henia- 
titic quartzites, wdth contemporaneous trap beds and occasional argUlites. 
The plains surrounding the Sandur Hills are occupied — except where they 
are joined by Dharwi'irs to the Copper Mountain range — by a series of 
crystalline rocks, which Foote divides into ' plutonic granitoid' and 
' metamorphic gneissoid'. The Sandur synclinal takes the form of a 
drawn out oval, pointed at both ends, with its long axis rimning 
N. W. and S. E. Its total length is about 36 miles and its width at 
the widest part about 12 miles. It is bounded by N. W.- and S. E.- 
running ridges that come nearly together at the N. W. and S. E. ends. 
It is thus in the form of an elliptical hollow surrounded almost continu- 
ously by high ranges of hills. The exceptions are at the N. W. end of 
the syncline, where a tributary of the Tungabhadra makes its escape, 
and about the middle of each of the two long sides of the syncline, 
where it is breached by a tribatary of the Tungabhadra known as the 
Narihalla. The Narihalla cuts through the S. W. bounding wall of the 
basin by a gorge known as the Oblagandi, crosses the middle of the 
1 Mem. G.S.I. , XXV, 'Geology of the Bellary District '. 
2 c 
