Standard

Processes and conditions of the origin for Fe3+-bearing magnesiowüstite under lithospheric mantle pressures and temperatures. / Bataleva, Yuliya; Palyanov, Yuri; Borzdov, Yuri et al.

In: Minerals, Vol. 9, No. 8, 474, 01.08.2019.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

BibTeX

@article{fa4414c0e8c6408eba9262dd0ee4581e,
title = "Processes and conditions of the origin for Fe3+-bearing magnesiow{\"u}stite under lithospheric mantle pressures and temperatures",
abstract = "An experimental study, implicated in the revealing of the conditions for the origin for Fe3+-bearing magnesiow{\"u}stite in the lithospheric mantle, was performed using M{\"o}ssbauer spectroscopy of pre-synthesized samples. Experiments were carried out using a multi-anvil high-pressure split-sphere apparatus at 6.3–7.5 GPa, in the range of 1100–1650 °C in carbonate-metal, carbonate–oxide-metal, carbonate-oxide, carbide-oxide and carbonate–metal-sulphur systems. In three experimental series, oxygen fugacity gradient in the samples was created, which enabled the study of the processes of magnesiow{\"u}stite formation under oxidizing and reducing conditions (ΔlogfO2 (FMQ) values from −1 to −5). It was established that Fe3+-bearing magnesiow{\"u}stite can form both in assemblage with oxidized phases, such as carbonate or with reduced ones—metal, carbides, sulphides, graphite and diamond. According to the M{\"o}ssbauer spectroscopy, the composition of synthesized magnesiow{\"u}stite varied within a range of Fe3+/ΣFe values from 0 to 0.3, with IV and VI coordination of Fe3+ depending on P, T, fO2, x-parameters. It was established that Fe3+-bearing magnesiow{\"u}stite formation processes under upper mantle P,T-conditions include redox reactions, with magnesiow{\"u}stite being (1) reductant or (2) product of interaction, (3) crystallization processes of magnesiow{\"u}stite from an oxidized melt, where magnesiow{\"u}stite acts as a sink for ferric iron and (4) iron disproportionation.",
keywords = "Diamond, Experimental modeling, Fe-bearing magnesiow{\"u}stite, Graphite, High-pressure experiment, Lithospheric mantle, Mantle oxides, Redox reactions, MAGNESIUM-OXIDE, lithospheric mantle, high-pressure experiment, STABILITY, mantle oxides, DEEP MANTLE, graphite, DIAMOND FORMATION, redox reactions, PHASE-TRANSFORMATIONS, experimental modeling, CARBON, Fe3+-bearing magnesiowustite, FERROPERICLASE, MINERAL INCLUSIONS, diamond, EQUATION-OF-STATE, FERRIC IRON CONTENT",
author = "Yuliya Bataleva and Yuri Palyanov and Yuri Borzdov and Oleg Bayukov",
note = "Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2019",
month = aug,
day = "1",
doi = "10.3390/min9080474",
language = "English",
volume = "9",
journal = "Minerals",
issn = "2075-163X",
publisher = "MDPI AG",
number = "8",

}

RIS

TY - JOUR

T1 - Processes and conditions of the origin for Fe3+-bearing magnesiowüstite under lithospheric mantle pressures and temperatures

AU - Bataleva, Yuliya

AU - Palyanov, Yuri

AU - Borzdov, Yuri

AU - Bayukov, Oleg

N1 - Publisher Copyright: © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - An experimental study, implicated in the revealing of the conditions for the origin for Fe3+-bearing magnesiowüstite in the lithospheric mantle, was performed using Mössbauer spectroscopy of pre-synthesized samples. Experiments were carried out using a multi-anvil high-pressure split-sphere apparatus at 6.3–7.5 GPa, in the range of 1100–1650 °C in carbonate-metal, carbonate–oxide-metal, carbonate-oxide, carbide-oxide and carbonate–metal-sulphur systems. In three experimental series, oxygen fugacity gradient in the samples was created, which enabled the study of the processes of magnesiowüstite formation under oxidizing and reducing conditions (ΔlogfO2 (FMQ) values from −1 to −5). It was established that Fe3+-bearing magnesiowüstite can form both in assemblage with oxidized phases, such as carbonate or with reduced ones—metal, carbides, sulphides, graphite and diamond. According to the Mössbauer spectroscopy, the composition of synthesized magnesiowüstite varied within a range of Fe3+/ΣFe values from 0 to 0.3, with IV and VI coordination of Fe3+ depending on P, T, fO2, x-parameters. It was established that Fe3+-bearing magnesiowüstite formation processes under upper mantle P,T-conditions include redox reactions, with magnesiowüstite being (1) reductant or (2) product of interaction, (3) crystallization processes of magnesiowüstite from an oxidized melt, where magnesiowüstite acts as a sink for ferric iron and (4) iron disproportionation.

AB - An experimental study, implicated in the revealing of the conditions for the origin for Fe3+-bearing magnesiowüstite in the lithospheric mantle, was performed using Mössbauer spectroscopy of pre-synthesized samples. Experiments were carried out using a multi-anvil high-pressure split-sphere apparatus at 6.3–7.5 GPa, in the range of 1100–1650 °C in carbonate-metal, carbonate–oxide-metal, carbonate-oxide, carbide-oxide and carbonate–metal-sulphur systems. In three experimental series, oxygen fugacity gradient in the samples was created, which enabled the study of the processes of magnesiowüstite formation under oxidizing and reducing conditions (ΔlogfO2 (FMQ) values from −1 to −5). It was established that Fe3+-bearing magnesiowüstite can form both in assemblage with oxidized phases, such as carbonate or with reduced ones—metal, carbides, sulphides, graphite and diamond. According to the Mössbauer spectroscopy, the composition of synthesized magnesiowüstite varied within a range of Fe3+/ΣFe values from 0 to 0.3, with IV and VI coordination of Fe3+ depending on P, T, fO2, x-parameters. It was established that Fe3+-bearing magnesiowüstite formation processes under upper mantle P,T-conditions include redox reactions, with magnesiowüstite being (1) reductant or (2) product of interaction, (3) crystallization processes of magnesiowüstite from an oxidized melt, where magnesiowüstite acts as a sink for ferric iron and (4) iron disproportionation.

KW - Diamond

KW - Experimental modeling

KW - Fe-bearing magnesiowüstite

KW - Graphite

KW - High-pressure experiment

KW - Lithospheric mantle

KW - Mantle oxides

KW - Redox reactions

KW - MAGNESIUM-OXIDE

KW - lithospheric mantle

KW - high-pressure experiment

KW - STABILITY

KW - mantle oxides

KW - DEEP MANTLE

KW - graphite

KW - DIAMOND FORMATION

KW - redox reactions

KW - PHASE-TRANSFORMATIONS

KW - experimental modeling

KW - CARBON

KW - Fe3+-bearing magnesiowustite

KW - FERROPERICLASE

KW - MINERAL INCLUSIONS

KW - diamond

KW - EQUATION-OF-STATE

KW - FERRIC IRON CONTENT

UR - http://www.scopus.com/inward/record.url?scp=85070739784&partnerID=8YFLogxK

U2 - 10.3390/min9080474

DO - 10.3390/min9080474

M3 - Article

AN - SCOPUS:85070739784

VL - 9

JO - Minerals

JF - Minerals

SN - 2075-163X

IS - 8

M1 - 474

ER -

ID: 21257100