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

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

6 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 - 1 Nov 2017

Keywords

carbonate
diamond anvil cell
high pressure
nyerereite
Raman spectroscopy
INCLUSIONS
MANTLE MINERALS
VOLCANO
TANZANIA

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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 = "carbonate, diamond anvil cell, high pressure, nyerereite, Raman spectroscopy, INCLUSIONS, MANTLE MINERALS, VOLCANO, TANZANIA",

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.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2017 John Wiley & Sons, Ltd.",

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 - 2017/11/1

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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 - carbonate

KW - diamond anvil cell

KW - high pressure

KW - nyerereite

KW - Raman spectroscopy

KW - INCLUSIONS

KW - MANTLE MINERALS

KW - VOLCANO

KW - TANZANIA

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JO - Journal of Raman Spectroscopy

JF - Journal of Raman Spectroscopy

SN - 0377-0486

IS - 11

ER -

High-pressure Raman study of nyerereite from Oldoinyo Lengai

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