Publications

Scientific publications

И.И. Лиханов.

Анорогенный магматизм Енисейского кряжа как свидетельство процессов распада суперконтинентов

// Труды КарНЦ РАН. No 5. Сер. Геология Докембрия. 2022. C. 73-76

I.I. Likhanov. Anorogenic magmatism of the Yenisey ridge: evidence for breakup of supercontinents // Transactions of Karelian Research Centre of Russian Academy of Science. No 5. Precambrian Geology Series. 2022. Pp. 73-76

Keywords: A-type granites; geochemistry; intraplate tectonics; geochronology; supercontinents

Here we report the occurrence of A-type granites with geochemical features indicating intraplate setting from the Yenisey Ridge. Zircon U–Pb analyses coupled with in situ U–Th–Pb geochronology of monazite constrain timing of emplacement of the rift–related granitoids and suggest two consequential breakup events at 1380 Ma and 800–720 Ma. These episodes of regional crustal evolution are correlated with the breakup ages of the Precambrian supercontinents Nuna and Rodinia supercontinents and supports the spatial proximity of Siberia and North Atlantic cratons (Laurentia and Baltica) over the long period 1.38–0.72 Ga.

URL: http://journals.krc.karelia.ru/index.php/precambrian/article/view/1681

DOI: 10.17076/geo1681

Indexed at RSCI

Last modified: October 6, 2022