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gossan
(redirected from Oxidized zone)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
gos·san  (gsn, gz-)
n.
An exposed, oxidized portion of a mineral vein, especially a rust-colored outcrop of iron ore.

[Cornish gossen, from gs, blood, from Old Cornish guit.]


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The system is partly oxidized with the thickness of the oxidized zone varying from 30 to approximately 100 metres or more locally.
Information gathered from the garimpeiro workings indicates that the vein maintains its gold content as the garimpeiro mining activity continues within the oxidized zone.
7 metres in true width, again within the oxidized zone, with poor core recoveries and without significant values.
 
 
 
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