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Asian Gold reserves DB
Toka Tindung Gold Mine (Indonesia)
      paishanlou gold mine (china)
      gaolong gold mine (china)
      ..................
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  Page 273
 
اولينقبليبعديآخرين
   THE EXPLORATION CHALLENGE
   The area is largely overlain by a homogeneous unconsolidated airfall tephra the
   youngest part of which, according to local anecdotal evidence, is about 100 years
   old. This tephra has buried, to many metres depth, a pre-existing mature incised
   landscape surface on which epithermal veins, stockworks and sinters were
   exposed and weathering. This study has been a fruitful examination of a relatively
   simple exploration enigma: how to identify the location and relative magnitude
   of gold-silver deposits formerly close to the surface or outcropping at surface,
   now abruptly and unconformably concealed by many metres of barren cover.
  
  
    PREVIOUS EXPLORATION GEOCHEMISTRY
   Previous systematic grid surface exploration geochemistry in these CoWs has
   been done by hand auger drilling through the tephra to access the top of the
   weathered bedrock (saprolite). Samples have been assayed for gold, arsenic,
   copper, lead and zinc, and locally also for antimony, mercury, molybdenum,
   tungsten and tin, all by Total Digest methods. Exploration drilling programs have
   had considerable success, leading to the discovery of more than 1,641,000
   ounces of gold and 4,039,000 ounces of silver resources contained within 5
   deposits. The original and principal deposit, Toka Tindung, was discovered in
   outcrop by Aurora Gold Limited by mapping and sampling creeks for goldanomalous
   rock float and stream sediments.
  
 
 
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