Инд. авторы:	Vladykin N.V., Kotov A.B., Borisenko A.S., Yarmolyuk V.V., Pokhilenko N.P., Salnikova E.B., Travin A.V, Yakovleva S.Z.
Заглавие:	Age boundaries of formation of the Tomtor alkaline-ultramafic pluton: U-Pb and 40Ar/39Ar geochronological studies
Библ. ссылка:	Vladykin N.V., Kotov A.B., Borisenko A.S., Yarmolyuk V.V., Pokhilenko N.P., Salnikova E.B., Travin A.V, Yakovleva S.Z. Age boundaries of formation of the Tomtor alkaline-ultramafic pluton: U-Pb and 40Ar/39Ar geochronological studies // Doklady Earth Sciences. - 2014. - Vol.454. - Iss. 1. - P.7-11. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X14010140; SCOPUS: 2-s2.0-84897598331; WoS: 000331709800002;
Реферат:	eng: This paper presents the results of geochronological studies of the Tomtor alkaline-ultramafic pluton, one of the largest Nb, Y, Sc, and TR deposits. A new scheme of its magmatism is given. The current K-Ar and Rb-Sr ages of different igneous rocks of the Tomtor pluton range from 800 to 250 Ma [Zaitsev et al., 1992; Frolov et al., 2003]. Such dispersion is probably related to the intense carbonatization of the rocks. The U-Pb zircon and 40Ar/ 39Ar mica ages indicate two stages of the formation of the pluton (700 and 400 Ma), which agrees well with the age of cycles of rift-related tectonogenesis of the Siberian platform. © 2014 Pleiades Publishing, Ltd.
Ключевые слова:	pluton; Precambrian; uranium-lead dating; Russian Federation; Siberian Platform; Tomtor Massif; Sakha; magmatism; geochronology; argon-argon dating; Geochronology; Mica; Lead; U-Pb zircon; Siberian platform; Magmatisms; Carbonatization; Age boundary; Paleozoic;
Издано:	2014
Физ. характеристика:	с.7-11