Инд. авторы:	Soloviev S.G., Kryazhev S.G., Semenova D.V., Kalinin Y.A., Bortnikov N.S.
Заглавие:	LA-ICP-MS Isotopic U-Pb Age of Zircon from the Eldzhurty Granites and Rhyolites at the Tyrnyauz Mo-W Deposit (North Caucasus, Russia)
Библ. ссылка:	Soloviev S.G., Kryazhev S.G., Semenova D.V., Kalinin Y.A., Bortnikov N.S. LA-ICP-MS Isotopic U-Pb Age of Zircon from the Eldzhurty Granites and Rhyolites at the Tyrnyauz Mo-W Deposit (North Caucasus, Russia) // Doklady Earth Sciences. - 2021. - Vol.499. - Iss. 1. - P.538-544. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X21070102; WoS: 000678583300002;
Реферат:	eng: The isotopic U-Pb ages are estimated for zircons (for the first time by the LA-ICP-MS method) from biotite (Eldzhurty) granites and for the first time from the rhyolites at the giant Tyrnyauz Mo-W deposit (North Caucasus). The weighted mean isotopic U-Pb age of zircon from the Eldzhurty granites is 2.10 +/- 0.08 Ma, with variations from 1.78 to 2.53 Ma, whereas that of zircon from the rhyolites is 2.05 +/- 0.04 Ma, with variations from 1.81 to 2.42 Ma. These data confirm the Neogene (Pleistocene) age of the rock crystallization, are in agreement with the emplacement sequence, and emphasize the short time span (similar to 50 ky) between them.
Ключевые слова:	North Caucasus; Tyrnyauz Mo-W deposit; granitoids; zircon; isotopic U-Pb studies; URANIUM;
Издано:	2021
Физ. характеристика:	с.538-544