366 APPENDIX IV STABLE ISOTOPE FRACTIONATION FACTORS Table IV.2 Sulfur Compound–H2S Ag2S Ag2S Bi2S3 CaS, SrS, BaS CdS CdS COS CoS, NiS, MnS Cu2S Cu2S Cu5FeS4 Cu5FeS4 CuFe2S3 CuFe2S3 CuFeS2 CuFeS2 CuS CuS FeNi2S4 FeS FeS FeS2 HgS HS MgS MoS2 MnS2 PbS S, S8 S2 Sb2S3 SnS SO2 Sulphate Sulphate Sulphate Sulphate Sulphite ZnS A* 1.15 B 0.43 0.6 0.5 1.23 1.23 0.5 0.5 0.56 0.5 6.0 0.5 1.0 5.0 5.82 C 0.8 0.1 0.62 0.67 0.60 0.1 0.18 0.4 0.1 0.67 0.10 0.05 0.06 0.75 0.1 0.25 0.1 0.07 0.05 0.05 0.04 0.05 0.08 0.05 0.04 0.4 0.1 0.27 0.10 0.05 0.25 0.40 0.08 0.7 0.1 0.06 0.15 0.50 0.1 0.45 0.1 0.40 0.10 0.63 0.05 0.16 0.21 0.75 0.1 0.45 0.1 4.70 6.463 5.26 8.0 6.5 0.3 4.12 0.10 0.05 Range (°C) 280–700 150–600 >25 510–630 200–600 280–490 200–600 200–700 50–350 200–400 350–1050 200–400 200–350 >400 600–1000 >25 50–705 Method References** Experim. Unknown Unknown Experim. Increment Experim. Experim. Experim. Unknown Experim. Experim. Increment Experim. Increment Experim. Increment Unknown Experim. Increment Experim. Increment Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. Experim. 1 2 2 1 3 1 1 1 2 1 1 3 1 3 1 3 2 1 3 1 3 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 5 1 1 Coefficients of the polynomial isotope fractionation equation: 1000 lnα ¼ A + B 103/T + C 106/T 2, T is temperature in K References: (1) Ohmoto and Rye (1979). (2) Seal (2006). (3) Li and Liu (2006). (4) Ohmoto and Lasaga (1982). (5) Marini et al. (2011). * **