LOWER TRANSITION ROCKS. IOI 



Very rich in iron and of a deep reddish or blackish purple colour. 

 The enclosed fragments are of all sizes. Masses of the haematite 

 rock in situ often protrude through the overlying breccia, and where 

 the beds are much crumpled it is often hard to be sure whether the 

 protrusions are parts of the breccia or part of the rock in situ. These 

 protrusions are so frequent and large that the breccia cannot be 

 shown on the map as a continuous deposit. 



The elevation of the central part of the Raman Drug ridge 

 shows for several miles hardly any variation, a few slight saddles 

 excepted, which are due to the erosive action of the atmospheric 

 forces having cut more deeply into locally softer formations. Such a 

 saddle occurs to the north of the sanitarium, and is crossed by the 

 western or Narayandevakerra ghat which unites with the northern 

 and southern ghats proceeding to Hospet and Sandur. 



The Raman Drug ridge extends above a mile further to the north- 

 west than does the eastern or Ramgol ridge, to be described further on. 

 The ridge is throughout simple, and the crest-forming beds very 

 rarely rise into elevations of any size. The exceptions to this are not 

 numerous, and only one is of such height and importance as to form 

 a special feature in the landscape. This is the haematite No. 18 of 

 the Raman Drug eastern section, which represents the Devadara 

 series of the Narihalla or Sandur section. This haematite bed, with 

 some associated schists, rises into a ridge of from 200 to 300 feet high 

 above the Sandur valley to the eastward of Bevihalli. This ridge 

 maintains this height while its course remains easterly, but sinks 

 down rapidly into the valley, where its course trends south-east 

 on the one hand and north-west on the other. At the southern trend 

 T , R .. ... . . the haematite bed, which I will call the Bevihalli 



The Bevihalli bed. 



bed, diminishes greatly in size and importance, 

 and is for a time nearly lost sight of, but shows in a small hill close to 

 Timlapur, and dies away again under the valley of the Narihalla, but 

 re-appears, and then in great force south of the river, and rises into 

 the important Devadara ridge, to be described further on as part of the 

 south-western or KumaYaswami division of the Sandur hills. 



( 101 ) 



