Sulfide solubilities in alteration-controlled systems

J.J. Hemley; C. Meyer; C.J. Hodgson; A.B. Thatcher

doi:10.1126/science.158.3808.1580

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Sulfide solubilities in alteration-controlled systems

J.J. Hemley·C. Meyer·C.J. Hodgson·A.B. Thatcher

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Abstract

Solubilities of sphalerite (ZnS) and galena (PbS) were determined at 300° to 500°C and 1000 bars total pressure in a chemical environment buffered by silicate mineral equilibria. Chloride solutions and muscovite-bearing assemblages characteristic of hydrothermal wall-rock alteration were used; weak acidities at temperature were therefore involved. The metal concentrations encountered tended to be higher than those observed in high bisulfide-H 2 S systems at neutral to weakly basic pH used in most previous experimentation; the chemical conditions of the work, although not completely satisfactory, are geologically more realistic than previous experimentation done in the basic-pH region.

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J.J. Hemley, C. Meyer, C.J. Hodgson, A.B. Thatcher. 1967. Sulfide solubilities in alteration-controlled systems. https://doi.org/10.1126/science.158.3808.1580

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