O-H_Stable_Isotopes

1 191 400 850 exp suzuoki epstein 1976 biotite h2o

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Unformatted text preview: t time of deposition • species that retained their isotopic compositions since deposition Wednesday, 15 August, 12 H Isotope Fractionation Factors Phase 1000 lnα A* B* T Range (°C) Method** Reference Muscovite-H2O -22.1 19.1 400-850 exp Suzuoki &Epstein (1976) Biotite-H2O -21.3 -2.8 400-850 exp Suzuoki &Epstein (1976) Hornblende-H2O -23.9 0 7.9 -23.1 400-850 350-950 exp exp Suzuoki &Epstein (1976) Graham et al. (1984a) Tremolite-H2O 0 -31.0 -21.1 14.9 350-650 650-950 exp Graham et al. (1984a) Epidote-H2O 0 29.2 -36 -139 300-650 <300 exp Graham et al. (1980) Zoisite-H2O -15.1 -28 250-650 exp Graham et al. (1980) Chlorite-H2O -3.7 -24 -28 500-700 500-700 exp exp Graham et al. (1984b) Graham et al. (1987) * 1000 lnα = A(106/T2) + B ** th = theoretical, emp = empirical, ext = estimated, exp = experimental Wednesday, 15 August, 12 H Isotope Fractionations Taylor 1997 in Geochemistry of Hydrothermal Ore Deposits Wednesday, 15 August, 12 O Isotope Fractionation Factors Mineral 1000 lnα A* B* T Range (°C) Method** Reference Quartz-H2O 4.1 3.38 2.51 3.28 3.34 2.05 -3.7 -3.4 -1.96 -5.53 -3.34 -1.14 500-800 200-500 500-750 0-100 250-500 500-800 th/emp exp exp th exp exp Bottinga & Javoy (1973) Clayton et al. (1972) Clayton et al (1972) Kawabe (1978) Matsuhisa et al. (1979) Matsuhisa et al. (1979) Calcite-H2O 2.78 -3.39 0-500 exp/th O'Neil et al. (1969) Magnetite-H2O -1.47 -3.7 500-800 th/emp Bottinga & Javoy (1973) Pyroxene-H2O 1.42 -3.7 500-800 th/emp Bottinga & Javoy (1973,1975) * 1000 lnα = A(106/T2) + B ** th = theoretical,...
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This document was uploaded on 03/06/2014 for the course ES 4502 at Memorial University.

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