Comment on "Steady-state 226Ra/230Th disequilibrium in mantle minerals

Implications for melt transport rates in island arcs" by M.D. Feineman and D.J. DePaolo [Earth Planet. Sci. Lett. 215 (2003) 339-355]

R. George*, M. Reagan, S. Turner, J. Gill, B. Bourdon

*Corresponding author for this work

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    In summary, we commend F&D for exploring the possible role of diffusion in generating 226Ra excesses and we do not doubt that such processes occur. However, for the reasons outlined above, we consider this mechanism unlikely to be the principle origin of the large 226Ra excesses observed in low-K basalts and basaltic andesites at arc front volcanoes.

    Original languageEnglish
    Pages (from-to)563-567
    Number of pages5
    JournalEarth and Planetary Science Letters
    Volume228
    Issue number3-4
    DOIs
    Publication statusPublished - 15 Dec 2004

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