High-pressure Raman study of nyerereite from Oldoinyo Lengai

Sergey V. Rashchenko, Sergey V. Goryainov, Alexander V. Romanenko, Alexander V. Golovin, Andrey V. Korsakov, Bertrand N. Moine, Anastasia O. Mikhno

Результат исследования: Научные публикации в периодических изданияхстатья

5 Цитирования (Scopus)

Аннотация

A rare sodium carbonate nyerereite, (Na,K)2Ca(CO3)2, first found in unique natrocarbonatite lava of Oldoinyo Lengai volcano, also attracted a lot of attention as an inclusion phase in mantle minerals formed in the course of deep carbonatite magmatism. We measured the evolution of nyerereite Raman spectra under quasi-hydrostatic compression up to 6.4 GPa using a diamond anvil cell. The ν4(CO3 2−) band (710 cm−1 at ambient pressure) and ν1(CO3 2−) doublet (1077 and 1086 cm−1 at ambient pressure) demonstrated a positive pressure shift with dν/dP irregularities at 0.5 and 3.0 GPa. The obtained calibration was then used for residual pressure measurements in nyerereite-bearing inclusions in olivine from the Udachnaya-East kimberlite.

Язык оригиналаанглийский
Страницы (с-по)1438-1442
Число страниц5
ЖурналJournal of Raman Spectroscopy
Том48
Номер выпуска11
DOI
СостояниеОпубликовано - 1 ноя 2017

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  • Цитировать

    Rashchenko, S. V., Goryainov, S. V., Romanenko, A. V., Golovin, A. V., Korsakov, A. V., Moine, B. N., & Mikhno, A. O. (2017). High-pressure Raman study of nyerereite from Oldoinyo Lengai. Journal of Raman Spectroscopy, 48(11), 1438-1442. https://doi.org/10.1002/jrs.5152