| Инд. авторы: | Sharygin I.S., Golovin A.V., Korsakov A.V., Pokhilenko N.P. |
| Заглавие: | Eitelite in sheared peridotite xenoliths from Udachnaya-East kimberlite pipe (Russia) - A new locality and host rock type |
| Библ. ссылка: | Sharygin I.S., Golovin A.V., Korsakov A.V., Pokhilenko N.P. Eitelite in sheared peridotite xenoliths from Udachnaya-East kimberlite pipe (Russia) - A new locality and host rock type // European Journal of Mineralogy. - 2013. - Vol.25. - Iss. 5. - P.825-834. - ISSN 0935-1221. - EISSN 1617-4011. |
| Внешние системы: | DOI: 10.1127/0935-1221/2013/0025-2315; SCOPUS: 2-s2.0-84882780874; WoS: 000329297400013; |
| Реферат: | eng: For the first time eitelite Na2Mg(CO3)2 was observed as a daughter phase in the melt inclusions in olivine from one of the deepest known mantle rocks sampled by kimberlite magma - sheared peridotite xenoliths (190 - 230 km), taken from the Devonian (~ 370 Ma) Udachnaya-East kimberlite pipe (Siberian craton, Russia). Eitelite was identified by confocal Raman spectroscopy and confirmed by energy-dispersive X-ray spectroscopy. Raman spectra of eitelite in the melt inclusions are characterized by a very strong band at 1105 cm-1 attributed to CO3 2- symmetric stretching, and weaker bands at 207-208 and 260-263 cm-1 due to lattice vibration. Our findings of eitelite in the melt inclusions entrapped by olivine of mantle xenoliths indicate that this rare carbonate can crystallise from primitive mantle-derived alkaline carbonatite melt. © 2013 E. Schweizerbart'sche Verlagsbuchhandlung, D-70176 Stuttgart.
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| Ключевые слова: | Sakha; Russian Federation; xenolith; Raman spectroscopy; peridotite; olivine; melt inclusion; magma; lattice dynamics; kimberlite; host rock; Udachnaya Pipe; carbonate group; Xenoliths; Udachnaya-East pipe; Raman spectroscopy; Peridotite; Melt inclusions; Mantle; Kimberlite; Eitelite; Carbonate; carbonatite; |
| Издано: | 2013 |
| Физ. характеристика: | с.825-834 |