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Reactions of iron with calcium carbonate at 6 GPa and 1273-1873 K : Implications for carbonate reduction in the deep mantle. / Martirosyan, N. S.; Litasov, K. D.; Shatskiy, A. F. et al.

In: Russian Geology and Geophysics, Vol. 56, No. 9, 01.09.2015, p. 1322-1331.

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

Harvard

Martirosyan, NS, Litasov, KD, Shatskiy, AF & Ohtani, E 2015, 'Reactions of iron with calcium carbonate at 6 GPa and 1273-1873 K: Implications for carbonate reduction in the deep mantle', Russian Geology and Geophysics, vol. 56, no. 9, pp. 1322-1331. https://doi.org/10.1016/j.rgg.2015.08.008

APA

Martirosyan, N. S., Litasov, K. D., Shatskiy, A. F., & Ohtani, E. (2015). Reactions of iron with calcium carbonate at 6 GPa and 1273-1873 K: Implications for carbonate reduction in the deep mantle. Russian Geology and Geophysics, 56(9), 1322-1331. https://doi.org/10.1016/j.rgg.2015.08.008

Vancouver

Martirosyan NS, Litasov KD, Shatskiy AF, Ohtani E. Reactions of iron with calcium carbonate at 6 GPa and 1273-1873 K: Implications for carbonate reduction in the deep mantle. Russian Geology and Geophysics. 2015 Sept 1;56(9):1322-1331. doi: 10.1016/j.rgg.2015.08.008

Author

Martirosyan, N. S. ; Litasov, K. D. ; Shatskiy, A. F. et al. / Reactions of iron with calcium carbonate at 6 GPa and 1273-1873 K : Implications for carbonate reduction in the deep mantle. In: Russian Geology and Geophysics. 2015 ; Vol. 56, No. 9. pp. 1322-1331.

BibTeX

@article{196afdaafc3e4ba595b8e76378801984,
title = "Reactions of iron with calcium carbonate at 6 GPa and 1273-1873 K: Implications for carbonate reduction in the deep mantle",
abstract = "Experimental data on Fe-CaCO3 interaction at 6 GPa and 1273-1873 K are presented. The system models the hypothetical redox interaction in subducting slabs at the contact with the reduced mantle and a putative process at the core-mantle boundary. The reaction is accompanied by carbonatite melt formation. It also produces Fe3C and calcium wustite, which form solid or liquid phases depending on experimental conditions. In iron-containing systems at 6 GPa, calcium carbonate melts in the range 1473-1573 K, which is consistent with aragonite disappearance from complex carbonate systems. The composition of calcium carbonate liquid is not influenced by metallic Fe. It corresponds to nearly pure CaCO3. Along the mantle adiabat or at slightly higher temperatures, nearly pure CaCO3 coexists with metallic iron or calcium wustite. This hypothesis explains the coexistence of metallic iron and carbonate inclusions in lithospheric and superdeep diamonds.",
keywords = "Carbonate, Experiment, High pressures, Iron, Mantle, Melting, Redox state, Subduction",
author = "Martirosyan, {N. S.} and Litasov, {K. D.} and Shatskiy, {A. F.} and E. Ohtani",
year = "2015",
month = sep,
day = "1",
doi = "10.1016/j.rgg.2015.08.008",
language = "English",
volume = "56",
pages = "1322--1331",
journal = "Russian Geology and Geophysics",
issn = "1068-7971",
publisher = "Elsevier Science B.V.",
number = "9",

}

RIS

TY - JOUR

T1 - Reactions of iron with calcium carbonate at 6 GPa and 1273-1873 K

T2 - Implications for carbonate reduction in the deep mantle

AU - Martirosyan, N. S.

AU - Litasov, K. D.

AU - Shatskiy, A. F.

AU - Ohtani, E.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Experimental data on Fe-CaCO3 interaction at 6 GPa and 1273-1873 K are presented. The system models the hypothetical redox interaction in subducting slabs at the contact with the reduced mantle and a putative process at the core-mantle boundary. The reaction is accompanied by carbonatite melt formation. It also produces Fe3C and calcium wustite, which form solid or liquid phases depending on experimental conditions. In iron-containing systems at 6 GPa, calcium carbonate melts in the range 1473-1573 K, which is consistent with aragonite disappearance from complex carbonate systems. The composition of calcium carbonate liquid is not influenced by metallic Fe. It corresponds to nearly pure CaCO3. Along the mantle adiabat or at slightly higher temperatures, nearly pure CaCO3 coexists with metallic iron or calcium wustite. This hypothesis explains the coexistence of metallic iron and carbonate inclusions in lithospheric and superdeep diamonds.

AB - Experimental data on Fe-CaCO3 interaction at 6 GPa and 1273-1873 K are presented. The system models the hypothetical redox interaction in subducting slabs at the contact with the reduced mantle and a putative process at the core-mantle boundary. The reaction is accompanied by carbonatite melt formation. It also produces Fe3C and calcium wustite, which form solid or liquid phases depending on experimental conditions. In iron-containing systems at 6 GPa, calcium carbonate melts in the range 1473-1573 K, which is consistent with aragonite disappearance from complex carbonate systems. The composition of calcium carbonate liquid is not influenced by metallic Fe. It corresponds to nearly pure CaCO3. Along the mantle adiabat or at slightly higher temperatures, nearly pure CaCO3 coexists with metallic iron or calcium wustite. This hypothesis explains the coexistence of metallic iron and carbonate inclusions in lithospheric and superdeep diamonds.

KW - Carbonate

KW - Experiment

KW - High pressures

KW - Iron

KW - Mantle

KW - Melting

KW - Redox state

KW - Subduction

UR - http://www.scopus.com/inward/record.url?scp=84939616601&partnerID=8YFLogxK

U2 - 10.1016/j.rgg.2015.08.008

DO - 10.1016/j.rgg.2015.08.008

M3 - Article

AN - SCOPUS:84939616601

VL - 56

SP - 1322

EP - 1331

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 9

ER -

ID: 25793108