Пермский Возраст Бурпалинского Щелочного Массива (Северное Прибайкалье): Геодинамические Следствия

Котов, А. Б.; Владыкин, Н. В.; Ярмолюк, В. В.; Сальникова, Е. Б.; Сотникова, И. А.; Яковлева, С. З.

doi:10.7868/s0869565213330165

Докл. РАН

2013

DOI: 10.7868/s0869565213330165

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Пермский Возраст Бурпалинского Щелочного Массива (Северное Прибайкалье): Геодинамические Следствия

А. Б. Котов¹,

Н. В. Владыкин²,

В. В. Ярмолюк³

et al.

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2024

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Chemical microprobe Th-U-Pb age dating of monazite from rare-metal pegmatites of the Burpala massif (North Baikal)

Spivak,

Sotnikova,

Viryus

et al. 2024

Doklady Rossijskoj akademii nauk. Nauki o Zemle

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The chemical composition and zoning of monazite from a dike of rare-metal pegmatites of the Britholite zone of the Burpala massif (Northern Baikal region) was studied by electron probe microanalysis (EPMA). It has been established that monazites are represented by Ce and La varieties. Grains of monazite-(Ce) are characterized by an increased concentration of Nd2O3 and ThO2 compared to monazite-(La). The weighted average age for monazites, determined by the U-Th-Pb CHIME method, was 251±31 Ma. The age calculated by the isochrone method corresponds to 273±69 Ma. The obtained age values of monazite indicate that the pegmatites of the Britholite zone were intruded after the pegmatites of the northwestern area and suggest the existence of several stages in the formation of rare-metal pegmatites in the massif.

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Chemical microprobe Th-U-Pb age dating of monazite from rare-metal pegmatites of the Burpala massif (North Baikal)

Spivak,

Sotnikova,

Viryus

et al. 2024

Doklady Rossijskoj akademii nauk. Nauki o Zemle

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show abstract

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Пермский Возраст Бурпалинского Щелочного Массива (Северное Прибайкалье): Геодинамические Следствия

Cited by 1 publication

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Chemical microprobe Th-U-Pb age dating of monazite from rare-metal pegmatites of the Burpala massif (North Baikal)

Chemical microprobe Th-U-Pb age dating of monazite from rare-metal pegmatites of the Burpala massif (North Baikal)

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