Gold Solubility in Supercritical Hydrothermal Brines Measured in Synthetic Fluid Inclusions
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Loucks, R.R.
Mavrogenes, John
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American Association for the Advancement of Science
Abstract
Metallic gold dissolves in H2S-containing supercritical water to produce the complex Au(HS)(H2S)3. A temperature decrease below 400°C and/or pressure decrease lead to a decomposition of this complex and, hence, to a rapid precipitation of metallic gold.
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Science