High pressure Raman study of Na4Ca(CO3)3 from the ambient pressure to 11 GPa

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High pressure Raman study of Na4Ca(CO3)3 from the ambient pressure to 11 GPa. / Rashchenko, Sergey; Kolesnichenko, Maria; Mikhno, Anastasia et al.

In: High Pressure Research, Vol. 43, No. 3, 2023, p. 205-214.

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

BibTeX

@article{e2489389f1e04c90b7a65fd5dad8caa8,

title = "High pressure Raman study of Na4Ca(CO3)3 from the ambient pressure to 11 GPa",

abstract = "Na-Ca double carbonates were found as the inclusions in {\textquoteleft}superdeep{\textquoteright} Juina diamonds and as the products of high pressure experiments and thus are regarded as the potential host of CO2 in the deep mantle. Recently, Na-rich carbonate (21.0% wt. of Na2O vs. 13.6% wt. of CaO) was reported as the product of experiment with carbonated eclogite treated at 21 GPa and 1200°C. Na/Ca ratio of this carbonate corresponds to Na4Ca(CO3)3 phase with cubic symmetry synthesized at 6 GPa. The stability of Na4Ca(CO3)3 at higher pressures has not been investigated yet. Herein, we report an in situ Raman study of Na4Ca(CO3)3 carbonate up to 11 GPa in order to reveal stability of its structure at mantle pressures. Obtained results strongly imply for reversible phase transition near 8 GPa associated with decrease of symmetry. The observed phase transition questions the stability of cubic Na4Ca(CO3)3 under conditions of mantle transition zone.",

keywords = "Na-carbonates, Raman spectroscopy, deep carbon cycle, diamond anvil cell, high pressure",

author = "Sergey Rashchenko and Maria Kolesnichenko and Anastasia Mikhno and Anton Shatskiy",

note = "The research was supported by a Russian Science Foundation (grant number 21-77-00016). Authors acknowledge Anastasia Brazhnikova for participation in data collection. Diffraction experiments were carried at the European Synchrotron Radiation Facility and supported by approval of ESRF Proposal ES-810.",

year = "2023",

doi = "10.1080/08957959.2023.2218535",

language = "English",

volume = "43",

pages = "205--214",

journal = "High Pressure Research",

issn = "0895-7959",

publisher = "Taylor and Francis Ltd.",

number = "3",

}

RIS

TY - JOUR

T1 - High pressure Raman study of Na4Ca(CO3)3 from the ambient pressure to 11 GPa

AU - Rashchenko, Sergey

AU - Kolesnichenko, Maria

AU - Mikhno, Anastasia

AU - Shatskiy, Anton

N1 - The research was supported by a Russian Science Foundation (grant number 21-77-00016). Authors acknowledge Anastasia Brazhnikova for participation in data collection. Diffraction experiments were carried at the European Synchrotron Radiation Facility and supported by approval of ESRF Proposal ES-810.

PY - 2023

Y1 - 2023

N2 - Na-Ca double carbonates were found as the inclusions in ‘superdeep’ Juina diamonds and as the products of high pressure experiments and thus are regarded as the potential host of CO2 in the deep mantle. Recently, Na-rich carbonate (21.0% wt. of Na2O vs. 13.6% wt. of CaO) was reported as the product of experiment with carbonated eclogite treated at 21 GPa and 1200°C. Na/Ca ratio of this carbonate corresponds to Na4Ca(CO3)3 phase with cubic symmetry synthesized at 6 GPa. The stability of Na4Ca(CO3)3 at higher pressures has not been investigated yet. Herein, we report an in situ Raman study of Na4Ca(CO3)3 carbonate up to 11 GPa in order to reveal stability of its structure at mantle pressures. Obtained results strongly imply for reversible phase transition near 8 GPa associated with decrease of symmetry. The observed phase transition questions the stability of cubic Na4Ca(CO3)3 under conditions of mantle transition zone.

AB - Na-Ca double carbonates were found as the inclusions in ‘superdeep’ Juina diamonds and as the products of high pressure experiments and thus are regarded as the potential host of CO2 in the deep mantle. Recently, Na-rich carbonate (21.0% wt. of Na2O vs. 13.6% wt. of CaO) was reported as the product of experiment with carbonated eclogite treated at 21 GPa and 1200°C. Na/Ca ratio of this carbonate corresponds to Na4Ca(CO3)3 phase with cubic symmetry synthesized at 6 GPa. The stability of Na4Ca(CO3)3 at higher pressures has not been investigated yet. Herein, we report an in situ Raman study of Na4Ca(CO3)3 carbonate up to 11 GPa in order to reveal stability of its structure at mantle pressures. Obtained results strongly imply for reversible phase transition near 8 GPa associated with decrease of symmetry. The observed phase transition questions the stability of cubic Na4Ca(CO3)3 under conditions of mantle transition zone.

KW - Na-carbonates

KW - Raman spectroscopy

KW - deep carbon cycle

KW - diamond anvil cell

KW - high pressure

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85161570401&origin=inward&txGid=ba38deebfd8f3ade06f142768208d89e

UR - https://www.mendeley.com/catalogue/e6c15318-0c03-3f3c-bddd-c75f44cf40f8/

U2 - 10.1080/08957959.2023.2218535

DO - 10.1080/08957959.2023.2218535

M3 - Article

VL - 43

SP - 205

EP - 214

JO - High Pressure Research

JF - High Pressure Research

SN - 0895-7959

IS - 3

ER -

ID: 56585903