114 BALL : GEOLOGY OF AURUNGA AND HUTAR COAL FIELDS. 



Hosir 



Tuppeh 



Bari. 



Monodag . 





Toree. 



Hirtun orHarhunj . 





5J 



Kurahi 





Doothoo. 



Adur 





jj 



Morwaie . 





Doorjag. 



Kotam 





Semah. 



Majhara. — I visited this locality in company -with Mr. L. R. Forbes, 

 Assistant Commissioner, who had previously been there, and had 

 brought from thence some specimens of very pure magnetite. In 

 a stream about frds of a mile north-west of the village, for a distance 

 of about 50 yards, flat, but weathered fragments of magnetite 

 occur rather abundantly scattered through the gravel. In the bank 

 of the stream there is an imperfect section of the rocks, which consist 

 of hornblendic and granitic gneisses with granite and quartz veins. 

 The strike of these beds is irregular, but the prevailing direction is from 

 west-north-west to east-south-east, and the dip vertical. We failed 

 to find any sign of the ore in situ, though it appeared to occur in 

 60 limited a section of the stream bed. The legitimate conclusion 

 seemed to be that the fragments were the sole remnant of a nest or band 

 of ore which had been eroded from its environment of hornblendic gneiss. 



Leaving the stream and crossing some raviney broken ground westwards 

 towards a small hill of hornblendic gneiss, similar fragments were found 

 here and there at various levels through the detrital soil, from the beds 

 of the ravines up to the top of the lower detrital slope of the hill, but 

 there were neither fragments nor ore in situ discernible on the hill itself. 



I am, under the circumstances, inclined to believe that these frag- 

 ments now exposed in the channels are proximately derived from the re- 

 assortment of old detritus and not directly from any exposed vein or layer.* 

 The toughness and power of resisting disintegration, together with the 

 high specific gravity, would sufficiently account for the survival of the 



* Magnetite occurs sometimes in nests or veins, sometimes in apparent beds which 

 underlie with the metamorphic rocks. 



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