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

*Corresponding author for this work

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    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.

    Original languageEnglish
    Pages (from-to)852-856
    Number of pages5
    JournalDoklady Earth Sciences
    Volume481
    Issue number1
    DOIs
    Publication statusPublished - Jul 2018

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