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Asian Gold reserves DB
Boroo Gold mine (mongolia)
      paishanlou gold mine (china)
      gaolong gold mine (china)
      ..................
 [Page 170 to 378]  Previous 0 1 2 3 4 5 6 7 8  Next 
  Page 170
 
اولينقبليبعديآخرين
   Mineralization:
   In preparation for a bankable feasibility document, AGR undertook a significant in-fill drill program of the deposit area in 1999 to bring the existing “reserves” to comply with the Australian JORC code for reporting of mineral resources and mineral reserves. The definition drilling program aimed to evaluate mineralization within optimized pit shells developed by Resolute in July 1998. The main zones of mineralization were drilled on a nominal 40-metre by 40-metre pattern. Ulaanbaatar-based Gobi Drilling, a division of Radial Drilling of Townsville, Australia, was contracted for a combined
   reverse circulation (RC) and diamond drilling program undertaken in 1999.
   The intention was to drill at right angles to the geology as mapped, rather than at right angles to the mineralization as interpreted, in case the lithological control of mineralization was stronger than previously thought. Therefore, holes of the main RC drilling program were inclined at 60°, with an azimuth of 270° with respect to the local grid over Zones 2, 3 and 5. Over Zone 6, the holes were inclined at 60°, with an azimuth of 270° UTM grid.

location of mineralization Zone in Satellite map
    Lithological control on mineralization was expected to be strongest where large blocks of metasediment occurred within the granitoid sections of Boroo Zones 2, 3 and 5. Drill hole depths were designed to test the main ore envelope and to intersect lithologically-controlled mineralization that might lie within
   a mineable distance below it.
   To date, four zones of economic gold mineralization have been identified on the Boroo property along the trend of the thrust fault, identified as Zones 2, 3, 5 and 6. The gold mineralization and the enclosing near-surface rocks have been subject to oxidation. The oxide zone has the highest degree of oxidation, followed by a transitional zone, and then the underlying fresh rocks in the primary zone of mineralization. The oxide zone is the host to 40% of the mineral reserves on the Boroo property, and a further 45% are in the transitional zone, thus facilitating the recovery of gold in the treatment
   of Boroo ore. The total depth to the bottom of the gold mineralization currently
   planned to be mined is less than 130 metres reflecting the flat-lying nature of the gold deposits.
  
 
 
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