An Experimental Study of Oxygen Isotope Fractionation in the Quartz—Wolframite

摘要 Oxygenisotopefractionationwasexperimentallystudiedinthequartz-wolframite-watersystemfrom200to420℃.ThestartingwolframitewassynthexizedinaqueoussolutionsofNa2WOR·2H2O+FeCl2·4H2OorMnCl2·4H2O.Thestartingsolutionsrangeinsalinityfrom0to10equivalentwt.%NaCl.Experimentswereconductedinagold-linedstainlesssteelautoclave,withfillingdegreesofabout50%.Theresultsshowednosignificantdifferenceindquilibriumisotopefractionationbetweenwaterandwolframite,ferberiteandhuebneriteatthesametemperature(310℃）.Theequilibriumoxygenisotopefractionationfactorsofwolframiteandwatertendtobeequalwithincreasingtemperatureabove370℃.buttoincreasesignificantlywithdecreasingtemperaturebelow370℃.

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An Experimental Study of Oxygen Isotope Fractionation in the Quartz—Wolframite—Water System

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An Experimental Study of Oxygen Isotope Fractionation in the Quartz—Wolframite—Water System

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