Geodynamic Significance of the Mesoproterozoic Magmatism of the Udzha Paleo-Rift (Northern Siberian Craton) Based on U-Pb Geochronology and Paleomagnetic Data

Авторы: Malyshev Sergey V., Pasenko Aleksander M., Ivanov Aleksei V., Gladkochub Dmitrii P., Savatenkov Valery M., Meffre Sebastien, Abersteiner Adam, Kamenetsky Vadim S., Shcherbakov Vasiliy D.
Журнал: Minerals
Том: 8
Номер: 12
Год издания: 2018
DOI: 10.3390/min8120555
Аннотация: 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.
Добавил в систему: Пасенко Александр Михайлович

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