| 漠滨金矿成矿物理化学条件的水—岩反应实验研究 |
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| 关键词:water-rock interaction physical-chemical conditions gold mobilization Mobin gold deposit |
| 基金项目:国家教育部博士点基金资助项目(9705301)，湖南省自然科学基金资助项目(97JJ205) |
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| Physical-Chemical Conditions for Mobilization of Gold in the Mobin Gold Deposit, Southwest Hunan |
| Water-rock experiments were carried out on samples of wall rock from the Mobin gold deposit, southwest Hunan, with the aim of determining the optimum physical and chemical conditions for the mobilization of gold in solution. The results indicate that gold is most easily mobilized from the tuffaceous slate in the Mobin deposit. Mobilization is optimized if fluids are neutral to slightly alkaline and contain both chlorine and sulphur ions at the concentration and composition of about 0.25 mol/L (NH 4) 2S + 1 mol/L NaCl.The amount of gold leached from the tuffaceous slate increases with temperature, although the effect decreases above some 200 ℃. |
| GU Li,DAI Ta-gen.2003.Physical-Chemical Conditions for Mobilization of Gold in the Mobin Gold Deposit, Southwest Hunan[J].Acta Geoscientica Sinica,24(1):79-84. |
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