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• W4367187463 endingPage "101624" @default.
• W4367187463 startingPage "101624" @default.
• W4367187463 abstract "Cassiterite (SnO2) is the main ore mineral of tin in magmatic–hydrothermal tin deposits, but tin transport and precipitation mechanisms from hydrothermal fluids remain poorly understood. We critically evaluated aqueous tin speciation in hydrothermal fluids from extensive experimental data and thermodynamic modeling. Sn(II) chloride complexes in hydrothermal fluids exist mainly as SnCl+, SnCl2(aq), and SnCl3−. The revised Helgeson–Kirkham–Flowers model parameters of these three tin species and two tin ions (Sn4+ and Sn2+) were derived from the correlation algorithms among these parameters, and the standard molar properties of cassiterite were optimized to be internally consistent with the available thermodynamic dataset. These thermodynamic parameters, together with the available equilibrium constant equation of Sn(IV) chloride complexes, could reproduce the available solubility data of cassiterite in acidic solutions at 400–700 °C under oxygen fugacity (fO2) levels buffered by hematite–magnetite (HM) or nickel–nickel oxide (NNO). These comparisons allow modeling chemical systems of SnO2–NaCl–HCl–H2O (liquid phase) to examine tin transport and cassiterite precipitation mechanisms under tin-mineralizing conditions: 300–500 °C, 50–150 MPa, 2 molal NaCl, and fO2 levels from QFM (quartz–fayalite–magnetite) to HM. Sn(II) chloride complexes are commonly interpreted to dominate in aqueous tin speciation under fO2 = NNO, but our modeling results indicate that considerable contents of Sn(IV) chloride complexes also exist in those reduced fluids with high HCl contents, consistent with recent in situ high-temperature experiments and molecular dynamic simulations. The Sn(II)/Sn(IV) ratios in fluids depends on fO2, temperature, and HCl contents. A considerable amount of Sn(IV) possibly exist in an early mineralization stage even under fO2 = NNO; if so, redox reactions are unnecessary to precipitate cassiterite from these mineralizing fluids. We find that even if the fO2 levels are constant, simple cooling can alter mineralizing fluids to be more oxidized (e.g., from QFM to HM) and cause cassiterite precipitation, indicating that oxidizing agents are not necessary as previously thought. This explains why cassiterite can precipitate in host rocks (e.g., sandstone or quartzite) that do not provide oxidizing agents. A simple rise in fO2 levels and pH neutralization (e.g., greisenization) also cause cassiterite precipitation. Cassiterite solubility in oxidized acidic hydrothermal fluids (NNO < fO2≤HM) is high enough to account for the tin contents of fluid inclusions from typical tin deposits, but the mineralization potential of oxdized fluids is inferior to reduced fluids (fO2≤ NNO) under the same conditions." @default.
• W4367187463 created "2023-04-28" @default.
• W4367187463 creator A5008265012 @default.
• W4367187463 creator A5043268307 @default.
• W4367187463 creator A5074823163 @default.
• W4367187463 date "2023-11-01" @default.
• W4367187463 modified "2023-10-16" @default.
• W4367187463 title "Tin transport and cassiterite precipitation from hydrothermal fluids" @default.
• W4367187463 cites W1963532440 @default.
• W4367187463 cites W1965629951 @default.
• W4367187463 cites W1969051824 @default.
• W4367187463 cites W1971181996 @default.
• W4367187463 cites W1971975787 @default.
• W4367187463 cites W1974357402 @default.
• W4367187463 cites W1975284296 @default.
• W4367187463 cites W1975534655 @default.
• W4367187463 cites W1983825803 @default.
• W4367187463 cites W1988827313 @default.
• W4367187463 cites W1995187523 @default.
• W4367187463 cites W1999891846 @default.
• W4367187463 cites W2005877813 @default.
• W4367187463 cites W2010358912 @default.
• W4367187463 cites W2011744114 @default.
• W4367187463 cites W2018890657 @default.
• W4367187463 cites W2022940509 @default.
• W4367187463 cites W2023012735 @default.
• W4367187463 cites W2023598090 @default.
• W4367187463 cites W2030134340 @default.
• W4367187463 cites W2030177006 @default.
• W4367187463 cites W2031793064 @default.
• W4367187463 cites W2034639407 @default.
• W4367187463 cites W2036315129 @default.
• W4367187463 cites W2038477842 @default.
• W4367187463 cites W2044436020 @default.
• W4367187463 cites W2045856283 @default.
• W4367187463 cites W2046509632 @default.
• W4367187463 cites W2047638885 @default.
• W4367187463 cites W2053130129 @default.
• W4367187463 cites W2054406331 @default.
• W4367187463 cites W2054411627 @default.
• W4367187463 cites W2055895721 @default.
• W4367187463 cites W2059429914 @default.
• W4367187463 cites W2061809467 @default.
• W4367187463 cites W2065940550 @default.
• W4367187463 cites W2066479861 @default.
• W4367187463 cites W2066620913 @default.
• W4367187463 cites W2075907503 @default.
• W4367187463 cites W2076772742 @default.
• W4367187463 cites W2079492764 @default.
• W4367187463 cites W2081258920 @default.
• W4367187463 cites W2082165120 @default.
• W4367187463 cites W2086806325 @default.
• W4367187463 cites W2111473359 @default.
• W4367187463 cites W2120959171 @default.
• W4367187463 cites W2130620795 @default.
• W4367187463 cites W2131817581 @default.
• W4367187463 cites W2135771602 @default.
• W4367187463 cites W2144629869 @default.
• W4367187463 cites W2147443820 @default.
• W4367187463 cites W2152535751 @default.
• W4367187463 cites W2153881109 @default.
• W4367187463 cites W2154045529 @default.
• W4367187463 cites W2162040054 @default.
• W4367187463 cites W2163433274 @default.
• W4367187463 cites W2167528749 @default.
• W4367187463 cites W2259594780 @default.
• W4367187463 cites W2315892471 @default.
• W4367187463 cites W2319277105 @default.
• W4367187463 cites W2320158642 @default.
• W4367187463 cites W2330756480 @default.
• W4367187463 cites W2342811692 @default.
• W4367187463 cites W2345849994 @default.
• W4367187463 cites W2468128077 @default.
• W4367187463 cites W2494943832 @default.
• W4367187463 cites W2525790487 @default.
• W4367187463 cites W2549971523 @default.
• W4367187463 cites W2556340912 @default.
• W4367187463 cites W257463974 @default.
• W4367187463 cites W2766118140 @default.
• W4367187463 cites W2770444383 @default.
• W4367187463 cites W2789690004 @default.
• W4367187463 cites W2790348106 @default.
• W4367187463 cites W2886588650 @default.
• W4367187463 cites W2902182928 @default.
• W4367187463 cites W2904950395 @default.
• W4367187463 cites W2957836849 @default.
• W4367187463 cites W2980495961 @default.
• W4367187463 cites W2991633378 @default.
• W4367187463 cites W2995066371 @default.
• W4367187463 cites W3004865363 @default.
• W4367187463 cites W3021891149 @default.
• W4367187463 cites W3133136956 @default.
• W4367187463 cites W3195642810 @default.
• W4367187463 cites W3197558358 @default.
• W4367187463 cites W3199551901 @default.
• W4367187463 cites W4200591854 @default.
• W4367187463 cites W4206279884 @default.
• W4367187463 cites W4306181345 @default.

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