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

doi:10.1002/jrs.5152

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1438-1442
Number of pages	5
Journal	Journal of Raman Spectroscopy
Volume	48
Issue number	11
DOIs	https://doi.org/10.1002/jrs.5152
Publication status	Published - Nov 2017
Externally published	Yes

Keywords

nyerereite
carbonate
high pressure
Raman spectroscopy
diamond anvil cell

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title = "High-pressure Raman study of nyerereite from Oldoinyo Lengai",

abstract = "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.",

keywords = "nyerereite, carbonate, high pressure, Raman spectroscopy, diamond anvil cell",

author = "Rashchenko, {Sergey V.} and Goryainov, {Sergey V.} and Romanenko, {Alexander V.} and Golovin, {Alexander V.} and Korsakov, {Andrey V.} and Moine, {Bertrand N.} and Mikhno, {Anastasia O.}",

year = "2017",

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doi = "10.1002/jrs.5152",

language = "English",

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AU - Rashchenko, Sergey V.

AU - Goryainov, Sergey V.

AU - Romanenko, Alexander V.

AU - Golovin, Alexander V.

AU - Korsakov, Andrey V.

AU - Moine, Bertrand N.

AU - Mikhno, Anastasia O.

PY - 2017/11

Y1 - 2017/11

N2 - 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.

AB - 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.

KW - nyerereite

KW - carbonate

KW - high pressure

KW - Raman spectroscopy

KW - diamond anvil cell

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JO - Journal of Raman Spectroscopy

JF - Journal of Raman Spectroscopy

IS - 11

ER -

High-pressure Raman study of nyerereite from Oldoinyo Lengai

Abstract

Keywords

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