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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/
Related URLs:	Google Scholar: Meffre, S UTAS Profile: Meffre, S UTAS Profile: Abersteiner, A Google Scholar: Kamenetsky, VS UTAS Profile: Kamenetsky, VS
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