Oxygen isotopic fractionation factor

Oxygen isotopic fractionation factors used for the calculation were taken from Taylor (1997). Initial 8 0 value of hydrothermal solution (0%o) was estimated from 8 0 values of K-feldspar and quartz in the veins and homogenization temperatures (Shikazono and Nagayama, 1993), and that of groundwater (—7%c) was estimated from meteoric water value of the south Kyushu district (—7%c) (Matsubaya et al., 1975). [Pg.190]

Fortier SM, Cole DR, Wesolowski DJ, Riciputi LR, Paterson BA, Valley JW, Horita J (1995) Determination of the magnetite-water equilibrium oxygen isotope fractionation factor at 350°C a comparison of ion microprobe and laser fluorination techniques. Geochim Cosmochim Acta 59 3871-3875 Friedman I, O Neil JR (1977) Compilation of Stable Isotope Fractionation Factors of Geochemical Interest. US Geol Surv Prof Paper 440-KK... [Pg.22]

Figure 11,33 Calculated oxygen isotope fractionation factors A% for methane-water vapor and hydrogen-water vapor couples plotted against T(°C). Reprinted from Y. Bottinga, Geochimica et Cosmochimica Acta, 33, 49-64, copyright 1969, with kind permission from Elsevier Science Ltd., The Boulevard, Langford Lane, Kidlington 0X5 1GB, UK.

$Figure 11,33 Calculated oxygen isotope fractionation factors A% for methane-water vapor and hydrogen-water vapor couples plotted against T(°C). Reprinted from Y. Bottinga, Geochimica et Cosmochimica Acta, 33, 49-64, copyright 1969, with kind permission from Elsevier Science Ltd., The Boulevard, Langford Lane, Kidlington 0X5 1GB, UK.$

Fig. 2.13 Oxygen isotope fractionation factors between liquid water and water vapour in the temperature range 0 — 350° C (after Horita and Wesolowski 1994)...

$Fig. 2.13 Oxygen isotope fractionation factors between liquid water and water vapour in the temperature range 0 — 350° C (after Horita and Wesolowski 1994)...$

Table 2.6 Experimentally determined oxygen isotope fractionation factors relative to water for the aqueous system CO2 — H2O between 5 and 40°C according to 10 hia = A(10 /T ) + B (Beck et al, 2005)...

$Table 2.6 Experimentally determined oxygen isotope fractionation factors relative to water for the aqueous system CO2 — H2O between 5 and 40°C according to 10 hia = A(10 /T ) + B (Beck et al, 2005)...$

The oxygen isotope fractionation factor a between the two phases depends on temperature as follows (Chiba et al., 1989) ... [Pg.82]

Oxygen isotope fractionation factors between mineral pairs may be expressed ... [Pg.94]

At temperatures higher than 100 °C, In wl-v does not show a linear relationship with 1/T however, the logarithm of the oxygen isotope fractionation factor, lna L-v( 0), does show a linear relationship with 1/T, up to the critical temperature. [Pg.1612]

If the reaction is written such that one mole of and atoms are exchanged between the two minerals, K2 is equal to aopx-oi, the oxygen isotope fractionation factor between orthopyroxene and olivine. [Pg.2]

Figure 3. Calculated oxygen isotope fractionation factors between CO2 and CO plotted as a function of (A) T, (B) 10, and (C) lO T. Note that the variation in the fractionation factor with temperature cannot be represented by any one simple function of temperature. Calculations follow the procedure outlined in the text.

$Figure 3. Calculated oxygen isotope fractionation factors between CO2 and CO plotted as a function of (A) T, (B) 10, and (C) lO T. Note that the variation in the fractionation factor with temperature cannot be represented by any one simple function of temperature. Calculations follow the procedure outlined in the text.$

Table 5. Coefficients for mineral-pair oxygen isotope fractionation factors. [Pg.39]

Figure 17. Plot of experimentally determined oxygen isotope fractionation factors between various metal carbonates and water at low temperatures. The carbonates were synAesized by precipitation from solution or replacement of calcite. Data sources CaCOs (calcite), SrCOs, and BaCOs - O Neil et al. (1969), corrected in Friedman and O Neil...

$Figure 17. Plot of experimentally determined oxygen isotope fractionation factors between various metal carbonates and water at low temperatures. The carbonates were synAesized by precipitation from solution or replacement of calcite. Data sources CaCOs (calcite), SrCOs, and BaCOs - O Neil et al. (1969), corrected in Friedman and O Neil...$

Figure 18. Plot of oxygen isotope fractionation factor between magnetite and water at low temperatures. Data sources Becker and Clayton (1976) and Rowe et al. (1994) - empirical-theoretical calculations Zheng (1995) -empirical increment method O Neil and Clayton (1964) - extrapolation of high-temperature experimental results to an analysis of magnetite teeth from marine chiton Blattner et al. (1983) -natural samples from active geothermal system in New Zealand Zhang et al. (1997) - extracellular magnetite...

$Figure 18. Plot of oxygen isotope fractionation factor between magnetite and water at low temperatures. Data sources Becker and Clayton (1976) and Rowe et al. (1994) - empirical-theoretical calculations Zheng (1995) -empirical increment method O Neil and Clayton (1964) - extrapolation of high-temperature experimental results to an analysis of magnetite teeth from marine chiton Blattner et al. (1983) -natural samples from active geothermal system in New Zealand Zhang et al. (1997) - extracellular magnetite...$

Figure 19. Plot of oxygen isotope fractionation factor between Fe(lll) oxides (hematite and goethite) and water at low temperatures. Data sources Zheng (1991, 1998) -...

$Figure 19. Plot of oxygen isotope fractionation factor between Fe(lll) oxides (hematite and goethite) and water at low temperatures. Data sources Zheng (1991, 1998) -...$

Chiba H, Kusakabe M, Hirano S, Matsuo S, Somiya S (1981) Oxygen isotope fractionation factors between anhydrite and water from 100 to 550°C. Earth Planet Sci Lett 53 55-62 Chiba H, Chacko T, Clayton RN, Goldsmith JR (1989) Oxygen isotope fractionations involving diopside, forsterite, magnetite, and calcite Application to geothermometry. Geochim Cosmochim Acta 53 2985-2995... [Pg.51]

Zheng Y-F (1997) Prediction of high-temperature oxygen isotope fractionation factors between mantle minerals. Phys Chem Mineral 24 356-364... [Pg.61]

Appendix 2. Oxygen isotope fractionation factors calibrations based on experiments or natural samples. [Pg.65]

The water sequestered in the hydrate lattice is preferentially enriched in 0 and deuterium (D), thus the isotopic composition of the water in the pore spaces collected from gas hydrate bearing sediment can provide additional information on the abundance and the characteristics of these deposits. Pore fluid samples that had been modified by hydrate decomposition upon core recovery during ODP Legs 146 (Kastner et al. 1998), and 164 (Matsumoto and Borowski 2000) provided the first field data to derive the oxygen isotope fractionation factor for in situ hydrate formation. A more comprehensive sampling... [Pg.502]

Beuning, K. R. M. W. T. Anderson, in review. Calibration of the cellulose-water oxygen isotope fractionation factor in aquatic algae and plants of tropical East Africa, in review. [Pg.396]

The resulting temperature estimates in column (1) range from 613°C to 1126°C. Omitting the lowest and the highest values yields a mean of 872 112°C (let) The oxygen-isotope fractionation factors reported by Chiba et al. (1989) for feldspar-pyroxene are Albite-Diopside = 1.81, Anorthite-Diopside = 0.76. For labradorite (An = 60%, Ab = 40%) the numerical value of A is ... [Pg.460]

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