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The elusive Hadean enriched reservoir revealed by 142Nd deficits in Isua Archaean rocks

Author

Listed:
  • Hanika Rizo

    (Clermont Université, Université Blaise Pascal, Laboratoire Magmas et Volcans, CNRS UMR 6524, IRD R 163, BP 10448, 63000 Clermont-Ferrand, France)

  • Maud Boyet

    (Clermont Université, Université Blaise Pascal, Laboratoire Magmas et Volcans, CNRS UMR 6524, IRD R 163, BP 10448, 63000 Clermont-Ferrand, France)

  • Janne Blichert-Toft

    (Laboratoire de Géologie de Lyon, Ecole Normale Supérieure de Lyon and Université Claude Bernard Lyon 1, CNRS UMR 5276, 69007 Lyon, France)

  • Jonathan O’Neil

    (Clermont Université, Université Blaise Pascal, Laboratoire Magmas et Volcans, CNRS UMR 6524, IRD R 163, BP 10448, 63000 Clermont-Ferrand, France)

  • Minik T. Rosing

    (Natural History Museum of Denmark and Nordic Center for Earth Evolution, University of Copenhagen, DK-1350 København, Denmark)

  • Jean-Louis Paquette

    (Clermont Université, Université Blaise Pascal, Laboratoire Magmas et Volcans, CNRS UMR 6524, IRD R 163, BP 10448, 63000 Clermont-Ferrand, France)

Abstract

Excesses of 142Nd previously found in 3.7-billion-year-old rocks from Isua, southwest Greenland, imply their derivation from a depleted mantle formed in the Hadean eon; the signature of a complementary Hadean enriched reservoir is now reported in 3.4-billion-year-old mafic dykes found in Isua.

Suggested Citation

  • Hanika Rizo & Maud Boyet & Janne Blichert-Toft & Jonathan O’Neil & Minik T. Rosing & Jean-Louis Paquette, 2012. "The elusive Hadean enriched reservoir revealed by 142Nd deficits in Isua Archaean rocks," Nature, Nature, vol. 491(7422), pages 96-100, November.
    • Handle: RePEc:nat:nature:v:491:y:2012:i:7422:d:10.1038_nature11565
    DOI: 10.1038/nature11565
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