Quantifying garnet-melt trace element partitioning using lattice-strain theory: Assessment of statistically significant controls and a new predictive model

D.S. Draper, W. van Westrenen

    Research output: Contribution to JournalArticleAcademicpeer-review

    146 Downloads (Pure)

    Abstract

    As a complement to our efforts to update and revise the thermodynamic basis for predicting garnet-melt trace element partitioning using lattice-strain theory (van Westrenen and Draper in Contrib Mineral Petrol, this issue), we have performed detailed statistical evaluations of possible correlations between intensive and extensive variables and experimentally determined garnet-melt partitioning values for trivalent cations (rare earth elements, Y, and Sc) entering the dodecahedral garnet X-site. We applied these evaluations to a database containing over 300 partition coefficient determinations, compiled both from literature values and from our own work designed in part to expand that database. Available data include partitioning measurements in ultramafic to basaltic to intermediate bulk compositions, and recent studies in Fe-rich systems relevant to extraterrestrial petrogenesis, at pressures sufficiently high such that a significant component of majorite, the high-pressure form of garnet, is present. Through the application of lattice-strain theory, we obtained best-fit values for the ideal ionic radius of the dodecahedral garnet X-site, r
    Original languageEnglish
    Pages (from-to)731-746
    JournalContributions to Mineralogy and Petrology
    Volume154
    DOIs
    Publication statusPublished - 2007

    Fingerprint

    Dive into the research topics of 'Quantifying garnet-melt trace element partitioning using lattice-strain theory: Assessment of statistically significant controls and a new predictive model'. Together they form a unique fingerprint.

    Cite this