LATERITE GOLD PLACER DEPOSITE
December 8, 2010
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Lateritic Gold :
is the gold in laterite layer, and content of surface and near surface materials. It's a highly weathered and soluble and infiltrate able as the Soil characteristic.
Gold bearing formation occupied in the Top Layer of the surface, and this the LATERITIC PROCESS TO BE GOLD ROCH FORMATION. In the area which is many of Oxidation and much more content of minerals with in the WEATHERING material and there is the elements of construct the gold bearing zone. The First step 2 FeS2 + 2 H2O + 7 O2 ----> 2Fe+2 + 4SO4-2 + 4H+
Second step 4Fe+2 + 6H2O + O2 --------> 4FeOOH + 8H+
The Chemical Solution of Gold and Silver in the acid condition, and saline environment:
4Au + 16Cl + 3O2 + 12H+ -----> AuCl4 + 6H2O
4Ag + 4Cl + O2 + 4H+ --------> 4AgCl4 + 6H2O
Precipitation of Gold by reducing of AgCl4 with increase pH :
AuCl + 3Fe+2 + 6H2O ------> Au + 3FeOOH + 4Cl + 9H+
4AuCl + 12OH -------------> 4Au + 16Cl + 3O2 + 6H2O
In situation Alkaline:
4FeS2 + 6H2O + 7O2 ------> 4FeOOH + 2S2O3 + 4H
(AuAg) + 4S2O3 + 1/2O2 + 2H ---> 2(Au,Ag)(S2)3)2 + H2O
Those of (Au,Ag)(S2O3)2 is on the melting situated.
Here meaning that Gold is on laterite material or PLACER.
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