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Effect of water on the magnesite–iron interaction, with implications for the fate of carbonates in the deep mantle. / Martirosyan, N. S.; Shatskiy, A.; Chanyshev, A. D. et al.

In: Lithos, Vol. 326-327, 01.02.2019, p. 435-445.

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

Harvard

Martirosyan, NS, Shatskiy, A, Chanyshev, AD, Litasov, KD, Podborodnikov, IV & Yoshino, T 2019, 'Effect of water on the magnesite–iron interaction, with implications for the fate of carbonates in the deep mantle', Lithos, vol. 326-327, pp. 435-445. https://doi.org/10.1016/j.lithos.2019.01.004

APA

Martirosyan, N. S., Shatskiy, A., Chanyshev, A. D., Litasov, K. D., Podborodnikov, I. V., & Yoshino, T. (2019). Effect of water on the magnesite–iron interaction, with implications for the fate of carbonates in the deep mantle. Lithos, 326-327, 435-445. https://doi.org/10.1016/j.lithos.2019.01.004

Vancouver

Martirosyan NS, Shatskiy A, Chanyshev AD, Litasov KD, Podborodnikov IV, Yoshino T. Effect of water on the magnesite–iron interaction, with implications for the fate of carbonates in the deep mantle. Lithos. 2019 Feb 1;326-327:435-445. doi: 10.1016/j.lithos.2019.01.004

Author

Martirosyan, N. S. ; Shatskiy, A. ; Chanyshev, A. D. et al. / Effect of water on the magnesite–iron interaction, with implications for the fate of carbonates in the deep mantle. In: Lithos. 2019 ; Vol. 326-327. pp. 435-445.

BibTeX

@article{e0b797a4dca14cafaba3f3367decb466,
title = "Effect of water on the magnesite–iron interaction, with implications for the fate of carbonates in the deep mantle",
abstract = "The subduction of carbonates beyond 250–300 km, where redox conditions favour the presence of metallic iron (Fe), will result in redox reactions with the Fe dispersed in the silicate rocks. Here, we studied the effect of water on the carbonate–Fe interaction in the hydromagnesite–Fe system at 6, 8 and 16 GPa and the peridotite–CO2–H2O–Fe system at 8 GPa, using a multianvil apparatus. In all of the studied samples, we observed the formation of magnesiow{\"u}stite, graphite and carbide. Additionally, in the peridotite–CO2–H2O–Fe system, magnesiow{\"u}stite reacted with pyroxenes, resulting in olivine enrichment. Kinetic calculations performed at 8 GPa showed that, at the pressure–temperature (P–T) parameters of the {\textquoteleft}hot{\textquoteright} {\textquoteleft}medium{\textquoteright} and {\textquoteleft}cold{\textquoteright} subduction, about 40, 12 and 4 vol% of carbonates, respectively, would be reduced in the hydrous system within 1 Myr, assuming direct contact with Fe. Based on the present results, it is suggested that carbonates will largely be consumed during the characteristic subduction time to the mantle transition zone by reaction with the reduced mantle in the presence of hydrous fluid.",
keywords = "Deep carbon cycle, High pressure, Hydrous fluid, Kinetics, Peridotite, Redox reaction, HIGH-PRESSURE, INCLUSIONS, 6 GPA, PERIDOTITE, TRANSPORT, TEMPERATURE, DIAMOND FORMATION, O-H FLUID, METAMORPHIC DEVOLATILIZATION, PHASE-RELATIONS",
author = "Martirosyan, {N. S.} and A. Shatskiy and Chanyshev, {A. D.} and Litasov, {K. D.} and Podborodnikov, {I. V.} and T. Yoshino",
note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",
year = "2019",
month = feb,
day = "1",
doi = "10.1016/j.lithos.2019.01.004",
language = "English",
volume = "326-327",
pages = "435--445",
journal = "Lithos",
issn = "0024-4937",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Effect of water on the magnesite–iron interaction, with implications for the fate of carbonates in the deep mantle

AU - Martirosyan, N. S.

AU - Shatskiy, A.

AU - Chanyshev, A. D.

AU - Litasov, K. D.

AU - Podborodnikov, I. V.

AU - Yoshino, T.

N1 - Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The subduction of carbonates beyond 250–300 km, where redox conditions favour the presence of metallic iron (Fe), will result in redox reactions with the Fe dispersed in the silicate rocks. Here, we studied the effect of water on the carbonate–Fe interaction in the hydromagnesite–Fe system at 6, 8 and 16 GPa and the peridotite–CO2–H2O–Fe system at 8 GPa, using a multianvil apparatus. In all of the studied samples, we observed the formation of magnesiowüstite, graphite and carbide. Additionally, in the peridotite–CO2–H2O–Fe system, magnesiowüstite reacted with pyroxenes, resulting in olivine enrichment. Kinetic calculations performed at 8 GPa showed that, at the pressure–temperature (P–T) parameters of the ‘hot’ ‘medium’ and ‘cold’ subduction, about 40, 12 and 4 vol% of carbonates, respectively, would be reduced in the hydrous system within 1 Myr, assuming direct contact with Fe. Based on the present results, it is suggested that carbonates will largely be consumed during the characteristic subduction time to the mantle transition zone by reaction with the reduced mantle in the presence of hydrous fluid.

AB - The subduction of carbonates beyond 250–300 km, where redox conditions favour the presence of metallic iron (Fe), will result in redox reactions with the Fe dispersed in the silicate rocks. Here, we studied the effect of water on the carbonate–Fe interaction in the hydromagnesite–Fe system at 6, 8 and 16 GPa and the peridotite–CO2–H2O–Fe system at 8 GPa, using a multianvil apparatus. In all of the studied samples, we observed the formation of magnesiowüstite, graphite and carbide. Additionally, in the peridotite–CO2–H2O–Fe system, magnesiowüstite reacted with pyroxenes, resulting in olivine enrichment. Kinetic calculations performed at 8 GPa showed that, at the pressure–temperature (P–T) parameters of the ‘hot’ ‘medium’ and ‘cold’ subduction, about 40, 12 and 4 vol% of carbonates, respectively, would be reduced in the hydrous system within 1 Myr, assuming direct contact with Fe. Based on the present results, it is suggested that carbonates will largely be consumed during the characteristic subduction time to the mantle transition zone by reaction with the reduced mantle in the presence of hydrous fluid.

KW - Deep carbon cycle

KW - High pressure

KW - Hydrous fluid

KW - Kinetics

KW - Peridotite

KW - Redox reaction

KW - HIGH-PRESSURE

KW - INCLUSIONS

KW - 6 GPA

KW - PERIDOTITE

KW - TRANSPORT

KW - TEMPERATURE

KW - DIAMOND FORMATION

KW - O-H FLUID

KW - METAMORPHIC DEVOLATILIZATION

KW - PHASE-RELATIONS

UR - http://www.scopus.com/inward/record.url?scp=85059940411&partnerID=8YFLogxK

U2 - 10.1016/j.lithos.2019.01.004

DO - 10.1016/j.lithos.2019.01.004

M3 - Article

AN - SCOPUS:85059940411

VL - 326-327

SP - 435

EP - 445

JO - Lithos

JF - Lithos

SN - 0024-4937

ER -

ID: 18142482