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Doklady Earth Sciences

, Volume 481, Issue 1, pp 852–856 | Cite as

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

  • A. A. Kremenetskiy
  • N. A. Gromalova
  • S. G. Skolotnev
  • O. G. Shuliatin
  • E. A. Belousova
Geology
  • 24 Downloads

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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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. A. Kremenetskiy
    • 1
  • N. A. Gromalova
    • 1
  • S. G. Skolotnev
    • 2
  • O. G. Shuliatin
    • 3
  • E. A. Belousova
    • 4
  1. 1.Institute of Mineralogy, Geochemistry, and Crystal Chemistry of Rare ElementsMoscowRussia
  2. 2.Geological InstituteRussian Academy of SciencesMoscowRussia
  3. 3.Gramberg All-Russia Research Institute of Geology and Mineral Resources of the World OceanSt. PetersburgRussia
  4. 4.Macquarie UniversitySydneyAustralia

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