SILVER AND ANTIMONY IN HYDROTHERMAL SOLUTIONS OF Ag-Sb DEPOSITS
G.G. Pavlova, L.V. Gushchina, A.A. Borovikov, A.S. Borisenko, and A.A. Obolensky
Keywords: Ag and Sb deposits, Ag and Sb species, fluid inclusions, thermodynamic modeling, ore-forming systems, mineral composition
Pages: 1136-1148
Abstract
Thermodynamic computer modeling of the Ag and Sb behavior in hydrothermal process at Ag-Sb deposits has been performed. Parameters of ore-forming fluids, obtained by studying fluid inclusions in minerals of igneous rocks and ores of Sn and Ag deposits, were used as original data for the modeling. Calculations intimate that Ag and Sb occur in concentrated high-temperature acid chloride solutions mainly as chloride species. Computer modeling showed high metal-bearing capacity of natural chloride solutions and their capability for transport of large amounts of Ag and Sb. Temperature regime is the most important factor for ore formation, which controls the deposition of various parageneses at different levels of hydrothermal ore-forming system as temperature decreases.
|
