129458 - Geodynamic significance of the Mesoproterozoic magmatism of the Udzha Paleo-Rift.pdf (3.78 MB)Download file
Geodynamic significance of the Mesoproterozoic magmatism of the Udzha Paleo-Rift (Northern Siberian Craton) based on U-Pb geochronology and paleomagnetic data
journal contributionposted on 2023-05-19, 22:52 authored by Malyshev, SV, Pasenko, AM, Ivanov, AV, Gladkochub, DP, Savatenkov, VM, Sebastien MeffreSebastien Meffre, Abersteiner, A, Vadim KamenetskyVadim Kamenetsky, Shcherbakov, VD
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.
Department/SchoolSchool of Natural Sciences
Place of publicationSwitzerland
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