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Sources of Magmatic Rocks from the Deep-Sea Floor of the Arctic Ocean and the Central Atlantic: Evidence from Data on the U–Pb Age, Hf Isotopes, and REE Geochemistry of Zircons

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Abstract

The results of geochronological (U–Pb), isotope–geochemical (Lu–Hf), and geochemical (REEs) studies of young (MZ, KZ) and xenogenic (AR, PR) zircons from magmatic rocks of the Central Arctic rises of the Arctic Ocean (AO) and the crest zone of the Mid-Atlantic Ridge (MAR) are presented. The data obtained show that the depleted mantle could be a source of young (KZ) zircons of the MAR, whereas young (MZ) zircons of the MAR and all xenogenic (AR, PR) zircons of the AO and MAR are from crustal rocks of the continental lithosphere.

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Authors and Affiliations

  1. Institute of Mineralogy, Geochemistry, and Crystal Chemistry of Rare Elements, Moscow, 121357, Russia

    A. A. Kremenetskiy & N. A. Gromalova

  2. Geological Institute, Russian Academy of Sciences, Moscow, 119017, Russia

    S. G. Skolotnev

  3. Gramberg All-Russia Research Institute of Geology and Mineral Resources of the World Ocean, St. Petersburg, 190121, Russia

    O. G. Shuliatin

  4. Macquarie University, Sydney, Australia

    E. A. Belousova

Authors
  1. A. A. Kremenetskiy
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  2. N. A. Gromalova
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  3. S. G. Skolotnev
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  4. O. G. Shuliatin
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  5. E. A. Belousova
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Correspondence to A. A. Kremenetskiy.

Additional information

Original Russian Text © A.A. Kremenetskiy, N.A. Gromalova, S.G. Skolotnev, O.G. Shuliatin, E.A. Belousova, 2018, published in Doklady Akademii Nauk, 2018, Vol. 481, No. 2.

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Kremenetskiy, A.A., Gromalova, N.A., Skolotnev, S.G. et al. Sources of Magmatic Rocks from the Deep-Sea Floor of the Arctic Ocean and the Central Atlantic: Evidence from Data on the U–Pb Age, Hf Isotopes, and REE Geochemistry of Zircons. Dokl. Earth Sc. 481, 852–856 (2018). https://doi.org/10.1134/S1028334X18070139

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  • DOI: https://doi.org/10.1134/S1028334X18070139

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