Interaction of Mine Water with Sulfide Minerals in Copper-Tin Ores at the Festivalnoe Deposit, Khabarovsk Krai

Abstract

This article presents, for the first time, the results of modeling the interaction between mine waters from the Festivalnoye deposit in the Komsomolsky ore district and sulfide minerals characteristic of copper-tin ores. The research was conducted using the method of physicochemical modeling with the software complex Selektor across a broad temperature range (–25 to +45°C). The study established the Eh-pH parameters of the solutions, their ionic and molecular compositions, and the associations of precipitated technogenic minerals across 21 variants. The chemical interactions were analyzed both for individual sulfide minerals—such as chalcocite, covellite, bornite, chalcopyrite, arsenopyrite, pyrite, pyrrhotite, galena, and sphalerite—and for their paragenesis, including cases where one of the sulfides was excluded from the model chemical composition. The findings reveal that technogenic mineralization occurs throughout the entire temperature range under study.