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By
Mingyou, He
Post to Citeulike
2 Citations
The conditions under which gold and arsenic are enriched separately during mineralization in gold deposits in southwestern Guizhou Province were described and the thermodynamic calculations gave: 200–150°C at 400 × 10−6 -300 × 106 Pa (corresponding to a depth between 1.6 km and 1.2 km); lgf o2,−40 to -35 Pa; lgf s2, -20 to−16 Pa; pH 5.0 -4.2 and Eh -0.53 V.
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By
Sixue, Yang; Zheru, Zhang
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1 Citations
The occurrences and characteristics of the association of Au-Sb-As-W are summarized. An interpretation of the association is given according to the fact that the content of reduced sulfur in the ore-forming solution is much high relative to Cl in this kind of ore deposits, especially for the Au-Sb-As with W, using the data on their complexes and solubility. The high fineness of gold and the separation of gold from the base metals Cu, Pb, Zn, and sometimes from Ag in this kind of ore deposits are also interpreted.
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