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Prospecting and exploration of placers of gold in northwestern Benin

  
At the stage of prospecting in order to identify potential sites of river valleys with placer gold, a set of investigations were carried out:
  • geological traverses on the irregular grid with mapping and sampling of artisanal works;
  • geomorphological traverses with mapping of valleys of rivers and terraces;
  • panning survey of scale 1:50 000 (300-500 m step of sampling);
  • handle drilling and excavation of mining workings to select the detail prospect sites.
  
Exploration of the identified productive sites had been conducted on the base of excavating of pits on 200 x 20 m and 100 x 10 m grid. The reserves and recourses had been classified by categories measured, indicated, inferred. Measured reserves were transferred to production enterprise.
  
  
Washing plant
  
Gold concentrate during cleanup
  
Mining enterprise for production of placer gold using wash plant Alaskan-50
  
Excavation of pits
  
Handle drilling
  
  
  
  
    
  
  
Ukraine, Crimea, Simferopol,
Scientifically-industrial enterprise Institute of Mineral Resourser of Africa
e-mail: shirkunov@yahoo.com