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

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 obt...

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Bibliographic Details
Published in:Doklady Earth Sciences
Main Authors: Kremenetskiy, A. A., Gromalova, N. A., Skolotnev, S. G., Shuliatin, O. G., Belousova, E. A.
Format: Article in Journal/Newspaper
Language:English
Published: 2018
Subjects:
Arctic
Arctic Ocean
Mid-Atlantic Ridge
Online Access:https://researchers.mq.edu.au/en/publications/d56b9548-9492-4104-ba80-81fd7cca701d
https://doi.org/10.1134/S1028334X18070139
http://www.scopus.com/inward/record.url?scp=85051232920&partnerID=8YFLogxK
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Summary: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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