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Geodynamic significance of the Mesoproterozoic magmatism of the Udzha Paleo-Rift (Northern Siberian Craton) based on U-Pb geochronology and paleomagnetic data

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Malyshev, SV, Pasenko, AM, Ivanov, AV, Gladkochub, DP, Savatenkov, VM, Meffre, S ORCID: 0000-0003-2741-6076, Abersteiner, A, Kamenetsky, VS ORCID: 0000-0002-2734-8790 and Shcherbakov, VD 2018 , 'Geodynamic significance of the Mesoproterozoic magmatism of the Udzha Paleo-Rift (Northern Siberian Craton) based on U-Pb geochronology and paleomagnetic data' , Minerals, vol. 8 , pp. 1-14 , doi: 10.3390/min8120555.

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Abstract

The emplacement age of the Great Udzha Dyke (northern Siberian Craton) was determined by the U-Pb dating of apatite using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). This produced an age of 1386 ± 30 Ma. This dyke along with two other adjacent intrusions, which cross-cut the sedimentary units of the Udzha paleo-rift, were subjected to paleomagnetic investigation. The paleomagnetic poles for the Udzha paleo-rift intrusions are consistent with previous results published for the Chieress dyke in the Anabar shield of the Siberian Craton (1384 ± 2 Ma). Our results suggest that there was a period of intense volcanism in the northern Siberian Craton, as well as allow us to reconstruct the apparent migration of the Siberian Craton during the Mesoproterozoic.

Item Type: Article
Authors/Creators:Malyshev, SV and Pasenko, AM and Ivanov, AV and Gladkochub, DP and Savatenkov, VM and Meffre, S and Abersteiner, A and Kamenetsky, VS and Shcherbakov, VD
Keywords: U-Pb geochronology, apatite, basalts, Proterozoic, Siberia, paleomagnetism, paleoreconstruction
Journal or Publication Title: Minerals
Publisher: MDPIAG
ISSN: 2075-163X
DOI / ID Number: 10.3390/min8120555
Copyright Information:

Copyright 2018 by the Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

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