Novobobrovsky ore field (Chetlass Stone, Middle Thyman): Ar-Ar data

Удоратина, О. В.; Травин, А. В.; Бурцев, И. Н.; Куликова, К. В.

doi:10.17223/25421379/19/2

Geosphere Research

2021

DOI: 10.17223/25421379/19/2

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Novobobrovsky ore field (Chetlass Stone, Middle Thyman): Ar-Ar data

О. В. Удоратина¹,

А. В. Травин²,

И. Н. Бурцев³

et al.

Abstract: Установлен возраст щелочных рудных (редкометалльно-редкоземельных) метасоматитов Новобобровского рудного поля. Калиевый полевой шпат является одним из ведущих минералов фенитов и фенитизированных пород. Согласно рентгеноструктурным данным, калиевый полевой шпат является максимальным (низким) микроклином, температура кристаллизации оценивается на уровне 450 С. В химическом составе микроклина содержание Na 2 O -0,3-0,4 мас. %. Полученный возраст ( 40 Ar/ 39 Ar) составил 564,0 ± 7,8 млн лет.

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Monazite of alkaline ore metasomatites of the Lower Mezen ore field (Middle Timan): Th-U-Pb-data

Udoratina,

Viryus,

Kozyreva

2023

Vestnik of Geosciences

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Monazite from rare-metal-rare-earth alkaline metasomatites of the Lower Mezen occurrence of the Middle Timan has a predominantly cerium composition (Ce2O3 > La2O3). The weighted average value of the point (Th-U-Pb, CHIME) age of monazites was (564 ± 27) Ma, the age of monazites, obtained from the ThO2*–PbO isochrone, is (566 ± 127) Ma. The age of the monazite is close in time to the monazites of the Novobobrovsky ore field and the Vendian igneous formations (ultramafic rocks and carbonatites of the Chetlas Complex) formed as a result of a plume pulse.

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Monazite of alkaline ore metasomatites of the Lower Mezen ore field (Middle Timan): Th-U-Pb-data

Udoratina,

Viryus,

Kozyreva

2023

Vestnik of Geosciences

View full text Add to dashboard Cite

show abstract

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Novobobrovsky ore field (Chetlass Stone, Middle Thyman): Ar-Ar data

Cited by 1 publication

References 1 publication

Monazite of alkaline ore metasomatites of the Lower Mezen ore field (Middle Timan): Th-U-Pb-data

Monazite of alkaline ore metasomatites of the Lower Mezen ore field (Middle Timan): Th-U-Pb-data

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