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    Oxygen and hydrogen isotope fractionation in serpentine–water and talc–water systems from 250 to 450°C, 50 MPa

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    Saccocia_Revised_Manuscript_6447.pdf (1.072Mb)
    Date
    2009-07-21
    Author
    Saccocia, Peter J.  Concept link
    Seewald, Jeffrey S.  Concept link
    Shanks, Wayne C.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3160
    As published
    https://doi.org/10.1016/j.gca.2009.07.036
    Abstract
    Oxygen and hydrogen isotope fractionation factors in the talc-water and serpentine-water systems have been determined by laboratory experiment from 250 to 450°C at 50 MPa using the partial exchange technique. Talc was synthesized from brucite + quartz, resulting in nearly 100% exchange during reaction at 350 and 450°C. For serpentine, D-H exchange was much more rapid than 18O-16O exchange when natural chrysotile fibers were employed in the initial charge. In experiments with lizardite as the starting charge, recrystallization to chrysotile enhanced the rate of 18O-16O exchange with the coexisting aqueous phase.
    Description
    Author Posting. © The Author(s), 2009. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Geochimica et Cosmochimica Acta 73 (2009): 6789-6804, doi:10.1016/j.gca.2009.07.036.
    Collections
    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Preprint: Saccocia, Peter J., Seewald, Jeffrey S., Shanks, Wayne C., "Oxygen and hydrogen isotope fractionation in serpentine–water and talc–water systems from 250 to 450°C, 50 MPa", 2009-07-21, https://doi.org/10.1016/j.gca.2009.07.036, https://hdl.handle.net/1912/3160
     

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