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143Nd/144Nd and 87Sr/86Sr ratios from the Azores and their significance in LIL-element enriched mantle

Nature volume 280, pages 28–31 (1979)Cite this article

Abstract

Basalts from Sao Miguel are displaced to higher 87Sr/86Sr ratios, and have a significantly shallower slope, compared with the main correlation between 143Nd/144Nd and 87Sr/86Sr for most mantle-derived volcanic rocks. Available data on young magmatic rocks indicate that large ionic lithophile (LIL)-element enrichment in the upper mantle involves two readily distinguishable components which reflect different histories.

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Author notes

  1. C. J. Hawkesworth

    Present address: Department of Earth Sciences, The Open University, Walton Hall, Milton Keynes, UK

  2. M. J. Norry

    Present address: Department of Geology, The University, Leicester, UK

  3. R. Vollmer

    Present address: Graduate School of Oceanography, University of Rhode Island, Kingston, Rhode Island, 02881

Authors and Affiliations

  1. Department of Earth Sciences, University of Leeds, Leeds, UK

    C. J. Hawkesworth, M. J. Norry, J. C. Roddick & R. Vollmer

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  3. J. C. Roddick
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  4. R. Vollmer
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Hawkesworth, C., Norry, M., Roddick, J. et al. 143Nd/144Nd and 87Sr/86Sr ratios from the Azores and their significance in LIL-element enriched mantle. Nature 280, 28–31 (1979). https://doi.org/10.1038/280028a0

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