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

@article{Hawkesworth1979143Nd144NdA8,
  title={143Nd/144Nd and 87Sr/86Sr ratios from the Azores and their significance in LIL-element enriched mantle},
  author={Christopher J. Hawkesworth and Michael J. Norry and J. Christopher Roddick and Robin T. Vollmer},
  journal={Nature},
  year={1979},
  volume={280},
  pages={28-31}
}
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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Appendix 9.10: Strontium Isotope Geochemistry of Zoned Plagioclase

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